---
_id: '6740'
abstract:
- lang: eng
text: We describe coding techniques that achieve the capacity of a discrete memoryless
asymmetric channel. To do so, we discuss how recent advances in coding for symmetric
channels yield more efficient solutions also for the asymmetric case. In more
detail, we consider three basic approaches. The first one is Gallager's scheme
that concatenates a linear code with a non-linear mapper, in order to bias the
input distribution. We explicitly show that both polar codes and spatially coupled
codes can be employed in this scenario. Further, we derive a scaling law between
the gap to capacity, the cardinality of channel input and output alphabets, and
the required size of the mapper. The second one is an integrated approach in which
the coding scheme is used both for source coding, in order to create codewords
with the capacity-achieving distribution, and for channel coding, in order to
provide error protection. Such a technique has been recently introduced by Honda
and Yamamoto in the context of polar codes, and we show how to apply it also to
the design of sparse graph codes. The third approach is based on an idea due to
Böcherer and Mathar and separates completely the two tasks of source coding and
channel coding by “chaining” together several codewords. We prove that we can
combine any suitable source code with any suitable channel code in order to provide
optimal schemes for asymmetric channels. In particular, polar codes and spatially
coupled codes fulfill the required conditions.
arxiv: 1
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Rudiger
full_name: Urbanke, Rudiger
last_name: Urbanke
- first_name: Hamed
full_name: Hassani, Hamed
last_name: Hassani
citation:
ama: 'Mondelli M, Urbanke R, Hassani H. How to achieve the capacity of asymmetric
channels. In: 52nd Annual Allerton Conference on Communication, Control, and
Computing. IEEE; 2014:789-796. doi:10.1109/allerton.2014.7028535'
apa: 'Mondelli, M., Urbanke, R., & Hassani, H. (2014). How to achieve the capacity
of asymmetric channels. In 52nd Annual Allerton Conference on Communication,
Control, and Computing (pp. 789–796). Monticello, IL, United States: IEEE.
https://doi.org/10.1109/allerton.2014.7028535'
chicago: Mondelli, Marco, Rudiger Urbanke, and Hamed Hassani. “How to Achieve the
Capacity of Asymmetric Channels.” In 52nd Annual Allerton Conference on Communication,
Control, and Computing, 789–96. IEEE, 2014. https://doi.org/10.1109/allerton.2014.7028535.
ieee: M. Mondelli, R. Urbanke, and H. Hassani, “How to achieve the capacity of asymmetric
channels,” in 52nd Annual Allerton Conference on Communication, Control, and
Computing, Monticello, IL, United States, 2014, pp. 789–796.
ista: Mondelli M, Urbanke R, Hassani H. 2014. How to achieve the capacity of asymmetric
channels. 52nd Annual Allerton Conference on Communication, Control, and Computing.
Allerton Conference on Communication, Control, and Computing, 789–796.
mla: Mondelli, Marco, et al. “How to Achieve the Capacity of Asymmetric Channels.”
52nd Annual Allerton Conference on Communication, Control, and Computing,
IEEE, 2014, pp. 789–96, doi:10.1109/allerton.2014.7028535.
short: M. Mondelli, R. Urbanke, H. Hassani, in:, 52nd Annual Allerton Conference
on Communication, Control, and Computing, IEEE, 2014, pp. 789–796.
conference:
end_date: 2014-10-03
location: Monticello, IL, United States
name: Allerton Conference on Communication, Control, and Computing
start_date: 2014-09-30
date_created: 2019-07-31T07:24:23Z
date_published: 2014-10-01T00:00:00Z
date_updated: 2023-02-23T12:49:36Z
day: '01'
doi: 10.1109/allerton.2014.7028535
extern: '1'
external_id:
arxiv:
- '1406.7373'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1406.7373
month: '10'
oa: 1
oa_version: Preprint
page: 789-796
publication: 52nd Annual Allerton Conference on Communication, Control, and Computing
publication_identifier:
eisbn:
- 978-1-4799-8009-3
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
record:
- id: '6678'
relation: later_version
status: public
status: public
title: How to achieve the capacity of asymmetric channels
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '6744'
abstract:
- lang: eng
text: With the aim of extending the coverage and improving the performance of impulse
radio ultra-wideband (UWB) systems, this paper focuses on developing a novel single
differential encoded decode and forward (DF) non-cooperative relaying scheme (NCR).
To favor simple receiver structures, differential noncoherent detection is employed
which enables effective energy capture without any channel estimation. Putting
emphasis on the general case of multi-hop relaying, we illustrate an original
algorithm for the joint power allocation and path selection (JPAPS), minimizing
an approximate expression of the overall bit error rate (BER). In particular,
after deriving a closed-form power allocation strategy, the optimal path selection
is reduced to a shortest path problem on a connected graph, which can be solved
without any topology information with complexity O(N 3 ), N being the number of
available relays of the network. An approximate scheme is also presented, which
reduces the complexity to O(N 2 ) while showing a negligible performance loss,
and for benchmarking purposes, an exhaustive-search based multi-hop DF cooperative
strategy is derived. Simulation results for various network setups corroborate
the effectiveness of the proposed low-complexity JPAPS algorithm, which favorably
compares to existing AF and DF relaying methods.
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Qi
full_name: Zhou, Qi
last_name: Zhou
- first_name: Vincenzo
full_name: Lottici, Vincenzo
last_name: Lottici
- first_name: Xiaoli
full_name: Ma, Xiaoli
last_name: Ma
citation:
ama: Mondelli M, Zhou Q, Lottici V, Ma X. Joint power allocation and path selection
for multi-hop noncoherent decode and forward UWB communications. IEEE Transactions
on Wireless Communications. 2014;13(3):1397-1409. doi:10.1109/twc.2014.020914.130669
apa: Mondelli, M., Zhou, Q., Lottici, V., & Ma, X. (2014). Joint power allocation
and path selection for multi-hop noncoherent decode and forward UWB communications.
IEEE Transactions on Wireless Communications. IEEE. https://doi.org/10.1109/twc.2014.020914.130669
chicago: Mondelli, Marco, Qi Zhou, Vincenzo Lottici, and Xiaoli Ma. “Joint Power
Allocation and Path Selection for Multi-Hop Noncoherent Decode and Forward UWB
Communications.” IEEE Transactions on Wireless Communications. IEEE, 2014.
https://doi.org/10.1109/twc.2014.020914.130669.
ieee: M. Mondelli, Q. Zhou, V. Lottici, and X. Ma, “Joint power allocation and path
selection for multi-hop noncoherent decode and forward UWB communications,” IEEE
Transactions on Wireless Communications, vol. 13, no. 3. IEEE, pp. 1397–1409,
2014.
ista: Mondelli M, Zhou Q, Lottici V, Ma X. 2014. Joint power allocation and path
selection for multi-hop noncoherent decode and forward UWB communications. IEEE
Transactions on Wireless Communications. 13(3), 1397–1409.
mla: Mondelli, Marco, et al. “Joint Power Allocation and Path Selection for Multi-Hop
Noncoherent Decode and Forward UWB Communications.” IEEE Transactions on Wireless
Communications, vol. 13, no. 3, IEEE, 2014, pp. 1397–409, doi:10.1109/twc.2014.020914.130669.
short: M. Mondelli, Q. Zhou, V. Lottici, X. Ma, IEEE Transactions on Wireless Communications
13 (2014) 1397–1409.
date_created: 2019-07-31T09:05:07Z
date_published: 2014-03-20T00:00:00Z
date_updated: 2021-01-12T08:08:48Z
day: '20'
doi: 10.1109/twc.2014.020914.130669
extern: '1'
intvolume: ' 13'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 1397-1409
publication: IEEE Transactions on Wireless Communications
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Joint power allocation and path selection for multi-hop noncoherent decode
and forward UWB communications
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2014'
...
---
_id: '6853'
abstract:
- lang: eng
text: This monograph presents a short course in computational geometry and topology.
In the first part the book covers Voronoi diagrams and Delaunay triangulations,
then it presents the theory of alpha complexes which play a crucial role in biology.
The central part of the book is the homology theory and their computation, including
the theory of persistence which is indispensable for applications, e.g. shape
reconstruction. The target audience comprises researchers and practitioners in
mathematics, biology, neuroscience and computer science, but the book may also
be beneficial to graduate students of these fields.
alternative_title:
- SpringerBriefs in Applied Sciences and Technology
article_processing_charge: No
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
citation:
ama: 'Edelsbrunner H. A Short Course in Computational Geometry and Topology.
1st ed. Cham: Springer Nature; 2014. doi:10.1007/978-3-319-05957-0'
apa: 'Edelsbrunner, H. (2014). A Short Course in Computational Geometry and Topology
(1st ed.). Cham: Springer Nature. https://doi.org/10.1007/978-3-319-05957-0'
chicago: 'Edelsbrunner, Herbert. A Short Course in Computational Geometry and
Topology. 1st ed. SpringerBriefs in Applied Sciences and Technology. Cham:
Springer Nature, 2014. https://doi.org/10.1007/978-3-319-05957-0.'
ieee: 'H. Edelsbrunner, A Short Course in Computational Geometry and Topology,
1st ed. Cham: Springer Nature, 2014.'
ista: 'Edelsbrunner H. 2014. A Short Course in Computational Geometry and Topology
1st ed., Cham: Springer Nature, IX, 110p.'
mla: Edelsbrunner, Herbert. A Short Course in Computational Geometry and Topology.
1st ed., Springer Nature, 2014, doi:10.1007/978-3-319-05957-0.
short: H. Edelsbrunner, A Short Course in Computational Geometry and Topology, 1st
ed., Springer Nature, Cham, 2014.
date_created: 2019-09-06T09:22:33Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2022-03-04T07:47:54Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-319-05957-0
edition: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: IX, 110
place: Cham
publication_identifier:
eisbn:
- 9-783-3190-5957-0
eissn:
- 2191-5318
isbn:
- 9-783-3190-5956-3
issn:
- 2191-530X
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: available as eBook via catalog IST BookList
relation: other
url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=356106
- description: available via catalog IST BookList
relation: other
url: https://koha.app.ist.ac.at/cgi-bin/koha/opac-detail.pl?biblionumber=373842
scopus_import: '1'
series_title: SpringerBriefs in Applied Sciences and Technology
status: public
title: A Short Course in Computational Geometry and Topology
type: book
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7038'
article_processing_charge: No
author:
- first_name: Kristóf
full_name: Huszár, Kristóf
id: 33C26278-F248-11E8-B48F-1D18A9856A87
last_name: Huszár
orcid: 0000-0002-5445-5057
- first_name: Michal
full_name: Rolinek, Michal
id: 3CB3BC06-F248-11E8-B48F-1D18A9856A87
last_name: Rolinek
citation:
ama: Huszár K, Rolinek M. Playful Math - An Introduction to Mathematical Games.
IST Austria
apa: Huszár, K., & Rolinek, M. (n.d.). Playful Math - An introduction to
mathematical games. IST Austria.
chicago: Huszár, Kristóf, and Michal Rolinek. Playful Math - An Introduction
to Mathematical Games. IST Austria, n.d.
ieee: K. Huszár and M. Rolinek, Playful Math - An introduction to mathematical
games. IST Austria.
ista: Huszár K, Rolinek M. Playful Math - An introduction to mathematical games,
IST Austria, 5p.
mla: Huszár, Kristóf, and Michal Rolinek. Playful Math - An Introduction to Mathematical
Games. IST Austria.
short: K. Huszár, M. Rolinek, Playful Math - An Introduction to Mathematical Games,
IST Austria, n.d.
corr_author: '1'
date_created: 2019-11-18T15:57:05Z
date_published: 2014-06-30T00:00:00Z
date_updated: 2025-06-26T12:38:53Z
day: '30'
ddc:
- '510'
department:
- _id: VlKo
- _id: UlWa
file:
- access_level: open_access
checksum: 2b94e5e1f4c3fe8ab89b12806276fb09
content_type: application/pdf
creator: dernst
date_created: 2019-11-18T15:57:51Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7039'
file_name: 2014_Playful_Math_Huszar.pdf
file_size: 511233
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '5'
publication_status: draft
publisher: IST Austria
status: public
title: Playful Math - An introduction to mathematical games
type: working_paper
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7071'
abstract:
- lang: eng
text: Spin and orbital quantum numbers play a key role in the physics of Mott insulators,
but in most systems they are connected only indirectly—via the Pauli exclusion
principle and the Coulomb interaction. Iridium-based oxides (iridates) introduce
strong spin–orbit coupling directly, such that these numbers become entwined together
and the Mott physics attains a strong orbital character. In the layered honeycomb
iridates this is thought to generate highly spin–anisotropic magnetic interactions,
coupling the spin to a given spatial direction of exchange and leading to strongly
frustrated magnetism. Here we report a new iridate structure that has the same
local connectivity as the layered honeycomb and exhibits striking evidence for
highly spin–anisotropic exchange. The basic structural units of this material
suggest that a new family of three-dimensional structures could exist, the ‘harmonic
honeycomb’ iridates, of which the present compound is the first example.
article_number: '4203'
article_processing_charge: No
article_type: original
author:
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Tess E.
full_name: Smidt, Tess E.
last_name: Smidt
- first_name: Itamar
full_name: Kimchi, Itamar
last_name: Kimchi
- first_name: Nicholas P.
full_name: Breznay, Nicholas P.
last_name: Breznay
- first_name: Alun
full_name: Biffin, Alun
last_name: Biffin
- first_name: Sungkyun
full_name: Choi, Sungkyun
last_name: Choi
- first_name: Roger D.
full_name: Johnson, Roger D.
last_name: Johnson
- first_name: Radu
full_name: Coldea, Radu
last_name: Coldea
- first_name: Pilanda
full_name: Watkins-Curry, Pilanda
last_name: Watkins-Curry
- first_name: Gregory T.
full_name: McCandless, Gregory T.
last_name: McCandless
- first_name: Julia Y.
full_name: Chan, Julia Y.
last_name: Chan
- first_name: Felipe
full_name: Gandara, Felipe
last_name: Gandara
- first_name: Z.
full_name: Islam, Z.
last_name: Islam
- first_name: Ashvin
full_name: Vishwanath, Ashvin
last_name: Vishwanath
- first_name: Arkady
full_name: Shekhter, Arkady
last_name: Shekhter
- first_name: Ross D.
full_name: McDonald, Ross D.
last_name: McDonald
- first_name: James G.
full_name: Analytis, James G.
last_name: Analytis
citation:
ama: Modic KA, Smidt TE, Kimchi I, et al. Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate. Nature Communications. 2014;5. doi:10.1038/ncomms5203
apa: Modic, K. A., Smidt, T. E., Kimchi, I., Breznay, N. P., Biffin, A., Choi, S.,
… Analytis, J. G. (2014). Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate. Nature Communications. Springer Science and
Business Media LLC. https://doi.org/10.1038/ncomms5203
chicago: Modic, Kimberly A, Tess E. Smidt, Itamar Kimchi, Nicholas P. Breznay, Alun
Biffin, Sungkyun Choi, Roger D. Johnson, et al. “Realization of a Three-Dimensional
Spin–Anisotropic Harmonic Honeycomb Iridate.” Nature Communications. Springer
Science and Business Media LLC, 2014. https://doi.org/10.1038/ncomms5203.
ieee: K. A. Modic et al., “Realization of a three-dimensional spin–anisotropic
harmonic honeycomb iridate,” Nature Communications, vol. 5. Springer Science
and Business Media LLC, 2014.
ista: Modic KA, Smidt TE, Kimchi I, Breznay NP, Biffin A, Choi S, Johnson RD, Coldea
R, Watkins-Curry P, McCandless GT, Chan JY, Gandara F, Islam Z, Vishwanath A,
Shekhter A, McDonald RD, Analytis JG. 2014. Realization of a three-dimensional
spin–anisotropic harmonic honeycomb iridate. Nature Communications. 5, 4203.
mla: Modic, Kimberly A., et al. “Realization of a Three-Dimensional Spin–Anisotropic
Harmonic Honeycomb Iridate.” Nature Communications, vol. 5, 4203, Springer
Science and Business Media LLC, 2014, doi:10.1038/ncomms5203.
short: K.A. Modic, T.E. Smidt, I. Kimchi, N.P. Breznay, A. Biffin, S. Choi, R.D.
Johnson, R. Coldea, P. Watkins-Curry, G.T. McCandless, J.Y. Chan, F. Gandara,
Z. Islam, A. Vishwanath, A. Shekhter, R.D. McDonald, J.G. Analytis, Nature Communications
5 (2014).
date_created: 2019-11-19T13:22:39Z
date_published: 2014-06-27T00:00:00Z
date_updated: 2021-01-12T08:11:42Z
day: '27'
ddc:
- '530'
doi: 10.1038/ncomms5203
extern: '1'
file:
- access_level: open_access
checksum: d290f0bfa93c5169cc6c8086874c5a78
content_type: application/pdf
creator: dernst
date_created: 2019-11-26T12:44:23Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7113'
file_name: 2014_NatureComm_Modic.pdf
file_size: 4832820
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
intvolume: ' 5'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Realization of a three-dimensional spin–anisotropic harmonic honeycomb iridate
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2014'
...
---
_id: '7072'
abstract:
- lang: eng
text: We investigate the structural and magnetic properties of two molecule-based
magnets synthesized from the same starting components. Their different structural
motifs promote contrasting exchange pathways and consequently lead to markedly
different magnetic ground states. Through examination of their structural and
magnetic properties we show that [Cu(pyz)(H2O)(gly)2](ClO4)2 may be considered
a quasi-one-dimensional quantum Heisenberg antiferromagnet whereas the related
compound [Cu(pyz)(gly)](ClO4), which is formed from dimers of antiferromagnetically
interacting Cu2+ spins, remains disordered down to at least 0.03 K in zero field
but shows a field-temperature phase diagram reminiscent of that seen in materials
showing a Bose-Einstein condensation of magnons.
article_number: '207201'
article_processing_charge: No
article_type: original
author:
- first_name: T.
full_name: Lancaster, T.
last_name: Lancaster
- first_name: P. A.
full_name: Goddard, P. A.
last_name: Goddard
- first_name: S. J.
full_name: Blundell, S. J.
last_name: Blundell
- first_name: F. R.
full_name: Foronda, F. R.
last_name: Foronda
- first_name: S.
full_name: Ghannadzadeh, S.
last_name: Ghannadzadeh
- first_name: J. S.
full_name: Möller, J. S.
last_name: Möller
- first_name: P. J.
full_name: Baker, P. J.
last_name: Baker
- first_name: F. L.
full_name: Pratt, F. L.
last_name: Pratt
- first_name: C.
full_name: Baines, C.
last_name: Baines
- first_name: L.
full_name: Huang, L.
last_name: Huang
- first_name: J.
full_name: Wosnitza, J.
last_name: Wosnitza
- first_name: R. D.
full_name: McDonald, R. D.
last_name: McDonald
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: J.
full_name: Singleton, J.
last_name: Singleton
- first_name: C. V.
full_name: Topping, C. V.
last_name: Topping
- first_name: T. A. W.
full_name: Beale, T. A. W.
last_name: Beale
- first_name: F.
full_name: Xiao, F.
last_name: Xiao
- first_name: J. A.
full_name: Schlueter, J. A.
last_name: Schlueter
- first_name: A. M.
full_name: Barton, A. M.
last_name: Barton
- first_name: R. D.
full_name: Cabrera, R. D.
last_name: Cabrera
- first_name: K. E.
full_name: Carreiro, K. E.
last_name: Carreiro
- first_name: H. E.
full_name: Tran, H. E.
last_name: Tran
- first_name: J. L.
full_name: Manson, J. L.
last_name: Manson
citation:
ama: Lancaster T, Goddard PA, Blundell SJ, et al. Controlling magnetic order and
quantum disorder in molecule-based magnets. Physical Review Letters. 2014;112(20).
doi:10.1103/physrevlett.112.207201
apa: Lancaster, T., Goddard, P. A., Blundell, S. J., Foronda, F. R., Ghannadzadeh,
S., Möller, J. S., … Manson, J. L. (2014). Controlling magnetic order and quantum
disorder in molecule-based magnets. Physical Review Letters. APS. https://doi.org/10.1103/physrevlett.112.207201
chicago: Lancaster, T., P. A. Goddard, S. J. Blundell, F. R. Foronda, S. Ghannadzadeh,
J. S. Möller, P. J. Baker, et al. “Controlling Magnetic Order and Quantum Disorder
in Molecule-Based Magnets.” Physical Review Letters. APS, 2014. https://doi.org/10.1103/physrevlett.112.207201.
ieee: T. Lancaster et al., “Controlling magnetic order and quantum disorder
in molecule-based magnets,” Physical Review Letters, vol. 112, no. 20.
APS, 2014.
ista: Lancaster T, Goddard PA, Blundell SJ, Foronda FR, Ghannadzadeh S, Möller JS,
Baker PJ, Pratt FL, Baines C, Huang L, Wosnitza J, McDonald RD, Modic KA, Singleton
J, Topping CV, Beale TAW, Xiao F, Schlueter JA, Barton AM, Cabrera RD, Carreiro
KE, Tran HE, Manson JL. 2014. Controlling magnetic order and quantum disorder
in molecule-based magnets. Physical Review Letters. 112(20), 207201.
mla: Lancaster, T., et al. “Controlling Magnetic Order and Quantum Disorder in Molecule-Based
Magnets.” Physical Review Letters, vol. 112, no. 20, 207201, APS, 2014,
doi:10.1103/physrevlett.112.207201.
short: T. Lancaster, P.A. Goddard, S.J. Blundell, F.R. Foronda, S. Ghannadzadeh,
J.S. Möller, P.J. Baker, F.L. Pratt, C. Baines, L. Huang, J. Wosnitza, R.D. McDonald,
K.A. Modic, J. Singleton, C.V. Topping, T.A.W. Beale, F. Xiao, J.A. Schlueter,
A.M. Barton, R.D. Cabrera, K.E. Carreiro, H.E. Tran, J.L. Manson, Physical Review
Letters 112 (2014).
date_created: 2019-11-19T13:23:13Z
date_published: 2014-05-19T00:00:00Z
date_updated: 2021-01-12T08:11:42Z
day: '19'
doi: 10.1103/physrevlett.112.207201
extern: '1'
intvolume: ' 112'
issue: '20'
language:
- iso: eng
month: '05'
oa_version: None
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: APS
quality_controlled: '1'
status: public
title: Controlling magnetic order and quantum disorder in molecule-based magnets
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 112
year: '2014'
...
---
_id: '7300'
abstract:
- lang: eng
text: Photoinduced electron transfer (PET), which causes pH-dependent quenching
of fluorescent dyes, is more effectively introduced by phenolic groups than by
amino groups which have been much more commonly used so far. That is demonstrated
by fluorescence measurements involving several classes of fluorophores. Electrochemical
measurements show that PET in several amino-modified dyes is thermodynamically
favorable, even though it was not experimentally found, underlining the importance
of kinetic aspects to the process. Consequently, the attachment of phenolic groups
allows for fast and simple preparation of a wide selection of fluorescent pH-probes
with tailor-made spectral properties, sensitive ranges, and individual advantages,
so that a large number of applications can be realized. Fluorophores carrying
phenolic groups may also be used for sensing analytes other than pH or molecular
switching and signaling.
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Aigner, Daniel
last_name: Aigner
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Martin
full_name: Wilkening, Martin
last_name: Wilkening
- first_name: Robert
full_name: Saf, Robert
last_name: Saf
- first_name: Sergey M.
full_name: Borisov, Sergey M.
last_name: Borisov
- first_name: Ingo
full_name: Klimant, Ingo
last_name: Klimant
citation:
ama: Aigner D, Freunberger SA, Wilkening M, Saf R, Borisov SM, Klimant I. Enhancing
photoinduced electron transfer efficiency of fluorescent pH-probes with halogenated
phenols. Analytical Chemistry. 2014;86(18):9293-9300. doi:10.1021/ac502513g
apa: Aigner, D., Freunberger, S. A., Wilkening, M., Saf, R., Borisov, S. M., &
Klimant, I. (2014). Enhancing photoinduced electron transfer efficiency of fluorescent
pH-probes with halogenated phenols. Analytical Chemistry. ACS. https://doi.org/10.1021/ac502513g
chicago: Aigner, Daniel, Stefan Alexander Freunberger, Martin Wilkening, Robert
Saf, Sergey M. Borisov, and Ingo Klimant. “Enhancing Photoinduced Electron Transfer
Efficiency of Fluorescent PH-Probes with Halogenated Phenols.” Analytical Chemistry.
ACS, 2014. https://doi.org/10.1021/ac502513g.
ieee: D. Aigner, S. A. Freunberger, M. Wilkening, R. Saf, S. M. Borisov, and I.
Klimant, “Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes
with halogenated phenols,” Analytical Chemistry, vol. 86, no. 18. ACS,
pp. 9293–9300, 2014.
ista: Aigner D, Freunberger SA, Wilkening M, Saf R, Borisov SM, Klimant I. 2014.
Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes with
halogenated phenols. Analytical Chemistry. 86(18), 9293–9300.
mla: Aigner, Daniel, et al. “Enhancing Photoinduced Electron Transfer Efficiency
of Fluorescent PH-Probes with Halogenated Phenols.” Analytical Chemistry,
vol. 86, no. 18, ACS, 2014, pp. 9293–300, doi:10.1021/ac502513g.
short: D. Aigner, S.A. Freunberger, M. Wilkening, R. Saf, S.M. Borisov, I. Klimant,
Analytical Chemistry 86 (2014) 9293–9300.
date_created: 2020-01-15T12:17:17Z
date_published: 2014-08-14T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '14'
doi: 10.1021/ac502513g
extern: '1'
intvolume: ' 86'
issue: '18'
language:
- iso: eng
month: '08'
oa_version: None
page: 9293-9300
publication: Analytical Chemistry
publication_identifier:
issn:
- 0003-2700
- 1520-6882
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Enhancing photoinduced electron transfer efficiency of fluorescent pH-probes
with halogenated phenols
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 86
year: '2014'
...
---
_id: '7301'
abstract:
- lang: eng
text: Several problems arise at the O2 (positive) electrode in the Li-air battery,
including solvent/electrode decomposition and electrode passivation by insulating
Li2O2. Progress partially depends on exploring the basic electrochemistry of O2
reduction. Here we describe the effect of complexing-cations on the electrochemical
reduction of O2 in DMSO in the presence and absence of a Li salt. The solubility
of alkaline peroxides in DMSO is enhanced by the complexing-cations, consistent
with their strong interaction with reduced O2. The complexing-cations also increase
the rate of the 1-electron O2 reduction to O2•– by up to six-fold (k° = 2.4 ×10–3
to 1.5 × 10–2 cm s–1) whether or not Li+ ions are present. In the absence of Li+,
the complexing-cations also promote the reduction of O2•– to O22–. In the presence
of Li+ and complexing-cations, and despite the interaction of the reduced O2 with
the latter, SERS confirms that the product is still Li2O2.
article_processing_charge: No
article_type: original
author:
- first_name: Chunmei
full_name: Li, Chunmei
last_name: Li
- first_name: Olivier
full_name: Fontaine, Olivier
last_name: Fontaine
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Lee
full_name: Johnson, Lee
last_name: Johnson
- first_name: Sylvie
full_name: Grugeon, Sylvie
last_name: Grugeon
- first_name: Stéphane
full_name: Laruelle, Stéphane
last_name: Laruelle
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
- first_name: Michel
full_name: Armand, Michel
last_name: Armand
citation:
ama: 'Li C, Fontaine O, Freunberger SA, et al. Aprotic Li–O2 battery: Influence
of complexing agents on oxygen reduction in an aprotic solvent. The Journal
of Physical Chemistry C. 2014;118(7):3393-3401. doi:10.1021/jp4093805'
apa: 'Li, C., Fontaine, O., Freunberger, S. A., Johnson, L., Grugeon, S., Laruelle,
S., … Armand, M. (2014). Aprotic Li–O2 battery: Influence of complexing agents
on oxygen reduction in an aprotic solvent. The Journal of Physical Chemistry
C. ACS. https://doi.org/10.1021/jp4093805'
chicago: 'Li, Chunmei, Olivier Fontaine, Stefan Alexander Freunberger, Lee Johnson,
Sylvie Grugeon, Stéphane Laruelle, Peter G. Bruce, and Michel Armand. “Aprotic
Li–O2 Battery: Influence of Complexing Agents on Oxygen Reduction in an Aprotic
Solvent.” The Journal of Physical Chemistry C. ACS, 2014. https://doi.org/10.1021/jp4093805.'
ieee: 'C. Li et al., “Aprotic Li–O2 battery: Influence of complexing agents
on oxygen reduction in an aprotic solvent,” The Journal of Physical Chemistry
C, vol. 118, no. 7. ACS, pp. 3393–3401, 2014.'
ista: 'Li C, Fontaine O, Freunberger SA, Johnson L, Grugeon S, Laruelle S, Bruce
PG, Armand M. 2014. Aprotic Li–O2 battery: Influence of complexing agents on oxygen
reduction in an aprotic solvent. The Journal of Physical Chemistry C. 118(7),
3393–3401.'
mla: 'Li, Chunmei, et al. “Aprotic Li–O2 Battery: Influence of Complexing Agents
on Oxygen Reduction in an Aprotic Solvent.” The Journal of Physical Chemistry
C, vol. 118, no. 7, ACS, 2014, pp. 3393–401, doi:10.1021/jp4093805.'
short: C. Li, O. Fontaine, S.A. Freunberger, L. Johnson, S. Grugeon, S. Laruelle,
P.G. Bruce, M. Armand, The Journal of Physical Chemistry C 118 (2014) 3393–3401.
date_created: 2020-01-15T12:17:28Z
date_published: 2014-01-29T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '29'
doi: 10.1021/jp4093805
extern: '1'
intvolume: ' 118'
issue: '7'
language:
- iso: eng
month: '01'
oa_version: None
page: 3393-3401
publication: The Journal of Physical Chemistry C
publication_identifier:
issn:
- 1932-7447
- 1932-7455
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: 'Aprotic Li–O2 battery: Influence of complexing agents on oxygen reduction
in an aprotic solvent'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 118
year: '2014'
...
---
_id: '7302'
abstract:
- lang: eng
text: Understanding charge carrier transport in Li2O2, the storage material in the
non-aqueous Li-O2 battery, is key to the development of this high-energy battery.
Here, we studied ionic transport properties and Li self-diffusion in nanocrystalline
Li2O2 by conductivity and temperature variable 7Li NMR spectroscopy. Nanostructured
Li2O2, characterized by a mean crystallite size of less than 50 nm as estimated
from X-ray diffraction peak broadening, was prepared by high-energy ball milling
of microcrystalline lithium peroxide with μm sized crystallites. At room temperature
the overall conductivity σ of the microcrystalline reference sample turned out
to be very low (3.4 × 10−13 S cm−1) which is in agreement with results from temperature-variable
7Li NMR line shape measurements. Ball-milling, however, leads to an increase of
σ by approximately two orders of magnitude (1.1 × 10−10 S cm−1); correspondingly,
the activation energy decreases from 0.89 eV to 0.82 eV. The electronic contribution
σeon, however, is in the order of 9 × 10−12 S cm−1 which makes less than 10% of
the total value. Interestingly, 7Li NMR lines of nano-Li2O2 undergo pronounced
heterogeneous motional narrowing which manifests in a two-component line shape
emerging with increasing temperatures. Most likely, the enhancement in σ can be
traced back to the generation of a spin reservoir with highly mobile Li ions;
these are expected to reside in the nearest neighbourhood of defects generated
or near the structurally disordered and defect-rich interfacial regions formed
during mechanical treatment.
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: Dunst, A.
last_name: Dunst
- first_name: V.
full_name: Epp, V.
last_name: Epp
- first_name: I.
full_name: Hanzu, I.
last_name: Hanzu
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: M.
full_name: Wilkening, M.
last_name: Wilkening
citation:
ama: Dunst A, Epp V, Hanzu I, Freunberger SA, Wilkening M. Short-range Li diffusion
vs. long-range ionic conduction in nanocrystalline lithium peroxide Li2O2—the
discharge product in lithium-air batteries. Energy & Environmental Science.
2014;7(8):2739-2752. doi:10.1039/c4ee00496e
apa: Dunst, A., Epp, V., Hanzu, I., Freunberger, S. A., & Wilkening, M. (2014).
Short-range Li diffusion vs. long-range ionic conduction in nanocrystalline lithium
peroxide Li2O2—the discharge product in lithium-air batteries. Energy &
Environmental Science. RSC. https://doi.org/10.1039/c4ee00496e
chicago: Dunst, A., V. Epp, I. Hanzu, Stefan Alexander Freunberger, and M. Wilkening.
“Short-Range Li Diffusion vs. Long-Range Ionic Conduction in Nanocrystalline Lithium
Peroxide Li2O2—the Discharge Product in Lithium-Air Batteries.” Energy &
Environmental Science. RSC, 2014. https://doi.org/10.1039/c4ee00496e.
ieee: A. Dunst, V. Epp, I. Hanzu, S. A. Freunberger, and M. Wilkening, “Short-range
Li diffusion vs. long-range ionic conduction in nanocrystalline lithium peroxide
Li2O2—the discharge product in lithium-air batteries,” Energy & Environmental
Science, vol. 7, no. 8. RSC, pp. 2739–2752, 2014.
ista: Dunst A, Epp V, Hanzu I, Freunberger SA, Wilkening M. 2014. Short-range Li
diffusion vs. long-range ionic conduction in nanocrystalline lithium peroxide
Li2O2—the discharge product in lithium-air batteries. Energy & Environmental
Science. 7(8), 2739–2752.
mla: Dunst, A., et al. “Short-Range Li Diffusion vs. Long-Range Ionic Conduction
in Nanocrystalline Lithium Peroxide Li2O2—the Discharge Product in Lithium-Air
Batteries.” Energy & Environmental Science, vol. 7, no. 8, RSC, 2014,
pp. 2739–52, doi:10.1039/c4ee00496e.
short: A. Dunst, V. Epp, I. Hanzu, S.A. Freunberger, M. Wilkening, Energy &
Environmental Science 7 (2014) 2739–2752.
date_created: 2020-01-15T12:17:43Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2021-01-12T08:12:53Z
day: '01'
doi: 10.1039/c4ee00496e
extern: '1'
intvolume: ' 7'
issue: '8'
language:
- iso: eng
month: '08'
oa_version: Published Version
page: 2739-2752
publication: Energy & Environmental Science
publication_identifier:
issn:
- 1754-5692
- 1754-5706
publication_status: published
publisher: RSC
quality_controlled: '1'
status: public
title: Short-range Li diffusion vs. long-range ionic conduction in nanocrystalline
lithium peroxide Li2O2—the discharge product in lithium-air batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2014'
...
---
_id: '7303'
abstract:
- lang: eng
text: The electrolyte in the non-aqueous (aprotic) lithium air battery has a profound
influence on the reactions that occur at the anode and cathode, and hence its
overall operation on discharge/charge. It must possess a wide range of attributes,
exceeding the requirements of electrolytes for Lithium ion batteries by far. The
most important additional issues are stability at both anode and cathode in the
presence of O2. The known problems with cycling the Li metal/non-aqueous electrolyte
interface are further complicated by O2. New and much less understood are the
reactions at the O2 cathode/electrolyte interface where the highly reversible
formation/decomposition of Li2O2 on discharge/charge is critical for the operation
of the non-aqueous lithium air battery. Many aprotic electrolytes exhibit decomposition
at the cathode during discharge and charge due to the presence of reactive reduced
O2 species affecting potential, capacity and kinetics on discharge and charge,
cyclability and calendar life. Identifying suitable electrolytes is one of the
key challenges for the non-aqueous lithium air battery at the present time. Following
the realisation that cyclability of such cells in the initially used organic carbonate
electrolytes is due to back-to-back irreversible reactions the stability of the
non-aqueous electrolytes became a major focus of research on rechargeable lithium
air batteries. This realisation led to the establishment of a suite of experimental
and computational methods capable of screening the stability of electrolytes.
These allow for greater mechanistic understanding of the reactivity and guide
the way towards designing more stable systems. A range of electrolytes based on
ethers, amides, sulfones, ionic liquids and dimethyl sulfoxide have been investigated.
All are more stable than the organic carbonates, but not all are equally stable.
Even though it was soon realised, by a number of groups, that ethers exhibit side
reactions on discharge and charge, they still remain the choice in many studies.
To date dimethyl sulfoxide and dimethylacetamide were identified as the most stable
electrolytes. In conjunction with the investigation of electrolyte stability the
importance of electrode stability became more prominent. The stability of the
electrolyte cannot be considered in isolation. Its stability depends on the synergy
between electrolyte and electrode. Carbon based electrodes promote electrolyte
decomposition and decompose on their own. Although great progress has been made
in only a few years, future work on aprotic electrolytes for Li-O2 batteries will
need to explore other electrolytes in the quest for yet lower cost, higher safety,
stability and low volatility.
article_processing_charge: No
author:
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Fanny
full_name: Bardé, Fanny
last_name: Bardé
- first_name: Kensuke
full_name: Takechi, Kensuke
last_name: Takechi
- first_name: Fuminori
full_name: Mizuno, Fuminori
last_name: Mizuno
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. Nonaqueous
Electrolytes. In: Imanishi N, Luntz AC, Bruce P, eds. The Lithium Air Battery:
Fundamentals. New York, NY: Springer Nature; 2014:23-58. doi:10.1007/978-1-4899-8062-5_2'
apa: 'Freunberger, S. A., Chen, Y., Bardé, F., Takechi, K., Mizuno, F., & Bruce,
P. G. (2014). Nonaqueous Electrolytes. In N. Imanishi, A. C. Luntz, & P. Bruce
(Eds.), The Lithium Air Battery: Fundamentals (pp. 23–58). New York, NY:
Springer Nature. https://doi.org/10.1007/978-1-4899-8062-5_2'
chicago: 'Freunberger, Stefan Alexander, Yuhui Chen, Fanny Bardé, Kensuke Takechi,
Fuminori Mizuno, and Peter G. Bruce. “Nonaqueous Electrolytes.” In The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi, Alan C. Luntz, and
Peter Bruce, 23–58. New York, NY: Springer Nature, 2014. https://doi.org/10.1007/978-1-4899-8062-5_2.'
ieee: 'S. A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, and P. G. Bruce,
“Nonaqueous Electrolytes,” in The Lithium Air Battery: Fundamentals, N.
Imanishi, A. C. Luntz, and P. Bruce, Eds. New York, NY: Springer Nature, 2014,
pp. 23–58.'
ista: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. 2014.Nonaqueous
Electrolytes. In: The Lithium Air Battery: Fundamentals. , 23–58.'
mla: 'Freunberger, Stefan Alexander, et al. “Nonaqueous Electrolytes.” The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi et al., Springer Nature,
2014, pp. 23–58, doi:10.1007/978-1-4899-8062-5_2.'
short: 'S.A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, P.G. Bruce,
in:, N. Imanishi, A.C. Luntz, P. Bruce (Eds.), The Lithium Air Battery: Fundamentals,
Springer Nature, New York, NY, 2014, pp. 23–58.'
date_created: 2020-01-15T12:17:55Z
date_published: 2014-03-05T00:00:00Z
date_updated: 2021-01-12T08:12:54Z
day: '05'
doi: 10.1007/978-1-4899-8062-5_2
editor:
- first_name: Nobuyuki
full_name: Imanishi, Nobuyuki
last_name: Imanishi
- first_name: Alan C.
full_name: Luntz, Alan C.
last_name: Luntz
- first_name: Peter
full_name: Bruce, Peter
last_name: Bruce
extern: '1'
language:
- iso: eng
month: '03'
oa_version: None
page: 23-58
place: New York, NY
publication: 'The Lithium Air Battery: Fundamentals'
publication_identifier:
eisbn:
- '9781489980625'
isbn:
- '9781489980618'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Nonaqueous Electrolytes
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7304'
abstract:
- lang: eng
text: Lithium-air batteries have received extraordinary attention recently owing
to their theoretical gravimetric energies being considerably higher than those
of Li-ion batteries. There are, however, significant challenges to practical implementation,
including low energy efficiency, cycle life, and power capability. These are due
primarily to the lack of fundamental understanding of oxygen reduction and evolution
reaction kinetics and parasitic reactions between oxygen redox intermediate species
and nominally inactive battery components such as carbon in the oxygen electrode
and electrolytes. In this article, we discuss recent advances in the mechanistic
understanding of oxygen redox reactions in nonaqueous electrolytes and the search
for electrolytes and electrode materials that are chemically stable in the oxygen
electrode. In addition, methods to protect lithium metal against corrosion by
water and dendrite formation in aqueous lithium-air batteries are discussed. Further
materials innovations lie at the heart of research and development efforts that
are needed to enable the development of lithium-oxygen batteries with enhanced
round-trip efficiency and cycle life.
article_processing_charge: No
article_type: original
author:
- first_name: D.G.
full_name: Kwabi, D.G.
last_name: Kwabi
- first_name: N.
full_name: Ortiz-Vitoriano, N.
last_name: Ortiz-Vitoriano
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Y.
full_name: Chen, Y.
last_name: Chen
- first_name: N.
full_name: Imanishi, N.
last_name: Imanishi
- first_name: P.G.
full_name: Bruce, P.G.
last_name: Bruce
- first_name: Y.
full_name: Shao-Horn, Y.
last_name: Shao-Horn
citation:
ama: Kwabi DG, Ortiz-Vitoriano N, Freunberger SA, et al. Materials challenges in
rechargeable lithium-air batteries. MRS Bulletin. 2014;39(5):443-452. doi:10.1557/mrs.2014.87
apa: Kwabi, D. G., Ortiz-Vitoriano, N., Freunberger, S. A., Chen, Y., Imanishi,
N., Bruce, P. G., & Shao-Horn, Y. (2014). Materials challenges in rechargeable
lithium-air batteries. MRS Bulletin. CUP. https://doi.org/10.1557/mrs.2014.87
chicago: Kwabi, D.G., N. Ortiz-Vitoriano, Stefan Alexander Freunberger, Y. Chen,
N. Imanishi, P.G. Bruce, and Y. Shao-Horn. “Materials Challenges in Rechargeable
Lithium-Air Batteries.” MRS Bulletin. CUP, 2014. https://doi.org/10.1557/mrs.2014.87.
ieee: D. G. Kwabi et al., “Materials challenges in rechargeable lithium-air
batteries,” MRS Bulletin, vol. 39, no. 5. CUP, pp. 443–452, 2014.
ista: Kwabi DG, Ortiz-Vitoriano N, Freunberger SA, Chen Y, Imanishi N, Bruce PG,
Shao-Horn Y. 2014. Materials challenges in rechargeable lithium-air batteries.
MRS Bulletin. 39(5), 443–452.
mla: Kwabi, D. G., et al. “Materials Challenges in Rechargeable Lithium-Air Batteries.”
MRS Bulletin, vol. 39, no. 5, CUP, 2014, pp. 443–52, doi:10.1557/mrs.2014.87.
short: D.G. Kwabi, N. Ortiz-Vitoriano, S.A. Freunberger, Y. Chen, N. Imanishi, P.G.
Bruce, Y. Shao-Horn, MRS Bulletin 39 (2014) 443–452.
date_created: 2020-01-15T12:18:05Z
date_published: 2014-05-01T00:00:00Z
date_updated: 2021-01-12T08:12:54Z
day: '01'
doi: 10.1557/mrs.2014.87
extern: '1'
intvolume: ' 39'
issue: '5'
language:
- iso: eng
month: '05'
oa_version: None
page: 443-452
publication: MRS Bulletin
publication_identifier:
issn:
- 0883-7694
- 1938-1425
publication_status: published
publisher: CUP
quality_controlled: '1'
status: public
title: Materials challenges in rechargeable lithium-air batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2014'
...
---
_id: '7305'
abstract:
- lang: eng
text: When lithium–oxygen batteries discharge, O2 is reduced at the cathode to form
solid Li2O2. Understanding the fundamental mechanism of O2 reduction in aprotic
solvents is therefore essential to realizing their technological potential. Two
different models have been proposed for Li2O2 formation, involving either solution
or electrode surface routes. Here, we describe a single unified mechanism, which,
unlike previous models, can explain O2 reduction across the whole range of solvents
and for which the two previous models are limiting cases. We observe that the
solvent influences O2 reduction through its effect on the solubility of LiO2,
or, more precisely, the free energy of the reaction LiO2* ⇌ Li(sol)+ + O2−(sol) + ion
pairs + higher aggregates (clusters). The unified mechanism shows that low-donor-number
solvents are likely to lead to premature cell death, and that the future direction
of research for lithium–oxygen batteries should focus on the search for new, stable,
high-donor-number electrolytes, because they can support higher capacities and
can better sustain discharge.
article_processing_charge: No
article_type: original
author:
- first_name: Lee
full_name: Johnson, Lee
last_name: Johnson
- first_name: Chunmei
full_name: Li, Chunmei
last_name: Li
- first_name: Zheng
full_name: Liu, Zheng
last_name: Liu
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Praveen C.
full_name: Ashok, Praveen C.
last_name: Ashok
- first_name: Bavishna B.
full_name: Praveen, Bavishna B.
last_name: Praveen
- first_name: Kishan
full_name: Dholakia, Kishan
last_name: Dholakia
- first_name: Jean-Marie
full_name: Tarascon, Jean-Marie
last_name: Tarascon
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Johnson L, Li C, Liu Z, et al. The role of LiO2 solubility in O2 reduction
in aprotic solvents and its consequences for Li–O2 batteries. Nature Chemistry.
2014;6(12):1091-1099. doi:10.1038/nchem.2101
apa: Johnson, L., Li, C., Liu, Z., Chen, Y., Freunberger, S. A., Ashok, P. C., …
Bruce, P. G. (2014). The role of LiO2 solubility in O2 reduction in aprotic solvents
and its consequences for Li–O2 batteries. Nature Chemistry. Springer Nature.
https://doi.org/10.1038/nchem.2101
chicago: Johnson, Lee, Chunmei Li, Zheng Liu, Yuhui Chen, Stefan Alexander Freunberger,
Praveen C. Ashok, Bavishna B. Praveen, Kishan Dholakia, Jean-Marie Tarascon, and
Peter G. Bruce. “The Role of LiO2 Solubility in O2 Reduction in Aprotic Solvents
and Its Consequences for Li–O2 Batteries.” Nature Chemistry. Springer Nature,
2014. https://doi.org/10.1038/nchem.2101.
ieee: L. Johnson et al., “The role of LiO2 solubility in O2 reduction in
aprotic solvents and its consequences for Li–O2 batteries,” Nature Chemistry,
vol. 6, no. 12. Springer Nature, pp. 1091–1099, 2014.
ista: Johnson L, Li C, Liu Z, Chen Y, Freunberger SA, Ashok PC, Praveen BB, Dholakia
K, Tarascon J-M, Bruce PG. 2014. The role of LiO2 solubility in O2 reduction in
aprotic solvents and its consequences for Li–O2 batteries. Nature Chemistry. 6(12),
1091–1099.
mla: Johnson, Lee, et al. “The Role of LiO2 Solubility in O2 Reduction in Aprotic
Solvents and Its Consequences for Li–O2 Batteries.” Nature Chemistry, vol.
6, no. 12, Springer Nature, 2014, pp. 1091–99, doi:10.1038/nchem.2101.
short: L. Johnson, C. Li, Z. Liu, Y. Chen, S.A. Freunberger, P.C. Ashok, B.B. Praveen,
K. Dholakia, J.-M. Tarascon, P.G. Bruce, Nature Chemistry 6 (2014) 1091–1099.
date_created: 2020-01-15T12:18:18Z
date_published: 2014-11-10T00:00:00Z
date_updated: 2021-01-12T08:12:55Z
day: '10'
doi: 10.1038/nchem.2101
extern: '1'
intvolume: ' 6'
issue: '12'
language:
- iso: eng
month: '11'
oa_version: None
page: 1091-1099
publication: Nature Chemistry
publication_identifier:
issn:
- 1755-4330
- 1755-4349
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/nchem.2138
status: public
title: The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences
for Li–O2 batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2014'
...
---
_id: '7361'
abstract:
- lang: eng
text: Bistable switches are fundamental regulatory elements of complex systems,
ranging from electronics to living cells. Designed genetic toggle switches have
been constructed from pairs of natural transcriptional repressors wired to inhibit
one another. The complexity of the engineered regulatory circuits can be increased
using orthogonal transcriptional regulators based on designed DNA-binding domains.
However, a mutual repressor-based toggle switch comprising DNA-binding domains
of transcription-activator-like effectors (TALEs) did not support bistability
in mammalian cells. Here, the challenge of engineering a bistable switch based
on monomeric DNA-binding domains is solved via the introduction of a positive
feedback loop composed of activators based on the same TALE domains as their opposing
repressors and competition for the same DNA operator site. This design introduces
nonlinearity and results in epigenetic bistability. This principle could be used
to employ other monomeric DNA-binding domains such as CRISPR for applications
ranging from reprogramming cells to building digital biological memory.
article_number: '5007'
article_processing_charge: No
article_type: original
author:
- first_name: Tina
full_name: Lebar, Tina
last_name: Lebar
- first_name: Urban
full_name: Bezeljak, Urban
id: 2A58201A-F248-11E8-B48F-1D18A9856A87
last_name: Bezeljak
orcid: 0000-0003-1365-5631
- first_name: Anja
full_name: Golob, Anja
last_name: Golob
- first_name: Miha
full_name: Jerala, Miha
last_name: Jerala
- first_name: Lucija
full_name: Kadunc, Lucija
last_name: Kadunc
- first_name: Boštjan
full_name: Pirš, Boštjan
last_name: Pirš
- first_name: Martin
full_name: Stražar, Martin
last_name: Stražar
- first_name: Dušan
full_name: Vučko, Dušan
last_name: Vučko
- first_name: Uroš
full_name: Zupančič, Uroš
last_name: Zupančič
- first_name: Mojca
full_name: Benčina, Mojca
last_name: Benčina
- first_name: Vida
full_name: Forstnerič, Vida
last_name: Forstnerič
- first_name: Rok
full_name: Gaber, Rok
last_name: Gaber
- first_name: Jan
full_name: Lonzarić, Jan
last_name: Lonzarić
- first_name: Andreja
full_name: Majerle, Andreja
last_name: Majerle
- first_name: Alja
full_name: Oblak, Alja
last_name: Oblak
- first_name: Anže
full_name: Smole, Anže
last_name: Smole
- first_name: Roman
full_name: Jerala, Roman
last_name: Jerala
citation:
ama: Lebar T, Bezeljak U, Golob A, et al. A bistable genetic switch based on designable
DNA-binding domains. Nature Communications. 2014;5(1). doi:10.1038/ncomms6007
apa: Lebar, T., Bezeljak, U., Golob, A., Jerala, M., Kadunc, L., Pirš, B., … Jerala,
R. (2014). A bistable genetic switch based on designable DNA-binding domains.
Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms6007
chicago: Lebar, Tina, Urban Bezeljak, Anja Golob, Miha Jerala, Lucija Kadunc, Boštjan
Pirš, Martin Stražar, et al. “A Bistable Genetic Switch Based on Designable DNA-Binding
Domains.” Nature Communications. Springer Nature, 2014. https://doi.org/10.1038/ncomms6007.
ieee: T. Lebar et al., “A bistable genetic switch based on designable DNA-binding
domains,” Nature Communications, vol. 5, no. 1. Springer Nature, 2014.
ista: Lebar T, Bezeljak U, Golob A, Jerala M, Kadunc L, Pirš B, Stražar M, Vučko
D, Zupančič U, Benčina M, Forstnerič V, Gaber R, Lonzarić J, Majerle A, Oblak
A, Smole A, Jerala R. 2014. A bistable genetic switch based on designable DNA-binding
domains. Nature Communications. 5(1), 5007.
mla: Lebar, Tina, et al. “A Bistable Genetic Switch Based on Designable DNA-Binding
Domains.” Nature Communications, vol. 5, no. 1, 5007, Springer Nature,
2014, doi:10.1038/ncomms6007.
short: T. Lebar, U. Bezeljak, A. Golob, M. Jerala, L. Kadunc, B. Pirš, M. Stražar,
D. Vučko, U. Zupančič, M. Benčina, V. Forstnerič, R. Gaber, J. Lonzarić, A. Majerle,
A. Oblak, A. Smole, R. Jerala, Nature Communications 5 (2014).
date_created: 2020-01-25T15:57:17Z
date_published: 2014-09-29T00:00:00Z
date_updated: 2021-01-12T08:13:15Z
day: '29'
doi: 10.1038/ncomms6007
extern: '1'
external_id:
pmid:
- '25264186'
intvolume: ' 5'
issue: '1'
language:
- iso: eng
month: '09'
oa_version: None
pmid: 1
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: A bistable genetic switch based on designable DNA-binding domains
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2014'
...
---
_id: '7455'
abstract:
- lang: eng
text: 'The reaction between NiO and (0001)- and ([1\bar102])-oriented Al2O3 single
crystals has been investigated on model experimental systems by using the ReflEXAFS
technique. Depth-sensitive information is obtained by collecting data above and
below the critical angle for total reflection. A systematic protocol for data
analysis, based on the recently developed CARD code, was implemented, and a detailed
description of the reactive systems was obtained. In particular, for ([1\bar102])-oriented
Al2O3, the reaction with NiO is almost complete after heating for 6 h at 1273 K,
and an almost uniform layer of spinel is found below a mixed (NiO + spinel) layer
at the very upmost part of the sample. In the case of the (0001)-oriented Al2O3,
for the same temperature and heating time, the reaction shows a lower advancement
degree and a residual fraction of at least 30% NiO is detected in the ReflEXAFS
spectra. '
article_processing_charge: No
article_type: original
author:
- first_name: Tommaso
full_name: Costanzo, Tommaso
id: D93824F4-D9BA-11E9-BB12-F207E6697425
last_name: Costanzo
orcid: 0000-0001-9732-3815
- first_name: Federico
full_name: Benzi, Federico
last_name: Benzi
- first_name: Paolo
full_name: Ghigna, Paolo
last_name: Ghigna
- first_name: Sonia
full_name: Pin, Sonia
last_name: Pin
- first_name: Giorgio
full_name: Spinolo, Giorgio
last_name: Spinolo
- first_name: Francesco
full_name: d'Acapito, Francesco
last_name: d'Acapito
citation:
ama: Costanzo T, Benzi F, Ghigna P, Pin S, Spinolo G, d’Acapito F. Studying the
surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS). Journal
of Synchrotron Radiation. 2014;21(2):395-400. doi:10.1107/s1600577513031299
apa: Costanzo, T., Benzi, F., Ghigna, P., Pin, S., Spinolo, G., & d’Acapito,
F. (2014). Studying the surface reaction between NiO and Al2O3viatotal reflection
EXAFS (ReflEXAFS). Journal of Synchrotron Radiation. International Union
of Crystallography. https://doi.org/10.1107/s1600577513031299
chicago: Costanzo, Tommaso, Federico Benzi, Paolo Ghigna, Sonia Pin, Giorgio Spinolo,
and Francesco d’Acapito. “Studying the Surface Reaction between NiO and Al2O3viatotal
Reflection EXAFS (ReflEXAFS).” Journal of Synchrotron Radiation. International
Union of Crystallography, 2014. https://doi.org/10.1107/s1600577513031299.
ieee: T. Costanzo, F. Benzi, P. Ghigna, S. Pin, G. Spinolo, and F. d’Acapito, “Studying
the surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS),”
Journal of Synchrotron Radiation, vol. 21, no. 2. International Union of
Crystallography, pp. 395–400, 2014.
ista: Costanzo T, Benzi F, Ghigna P, Pin S, Spinolo G, d’Acapito F. 2014. Studying
the surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS).
Journal of Synchrotron Radiation. 21(2), 395–400.
mla: Costanzo, Tommaso, et al. “Studying the Surface Reaction between NiO and Al2O3viatotal
Reflection EXAFS (ReflEXAFS).” Journal of Synchrotron Radiation, vol. 21,
no. 2, International Union of Crystallography, 2014, pp. 395–400, doi:10.1107/s1600577513031299.
short: T. Costanzo, F. Benzi, P. Ghigna, S. Pin, G. Spinolo, F. d’Acapito, Journal
of Synchrotron Radiation 21 (2014) 395–400.
date_created: 2020-02-05T14:14:48Z
date_published: 2014-01-10T00:00:00Z
date_updated: 2023-02-23T13:08:22Z
day: '10'
doi: 10.1107/s1600577513031299
extern: '1'
intvolume: ' 21'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
page: 395-400
publication: Journal of Synchrotron Radiation
publication_identifier:
issn:
- 1600-5775
publication_status: published
publisher: International Union of Crystallography
quality_controlled: '1'
status: public
title: Studying the surface reaction between NiO and Al2O3viatotal reflection EXAFS
(ReflEXAFS)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2014'
...
---
_id: '7598'
article_processing_charge: No
article_type: original
author:
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Hong-Wei
full_name: Xue, Hong-Wei
last_name: Xue
citation:
ama: Tan S, Xue H-W. Casein kinase 1 regulates ethylene synthesis by phosphorylating
and promoting the turnover of ACS5. Cell Reports. 2014;9(5):1692-1702.
doi:10.1016/j.celrep.2014.10.047
apa: Tan, S., & Xue, H.-W. (2014). Casein kinase 1 regulates ethylene synthesis
by phosphorylating and promoting the turnover of ACS5. Cell Reports. Elsevier.
https://doi.org/10.1016/j.celrep.2014.10.047
chicago: Tan, Shutang, and Hong-Wei Xue. “Casein Kinase 1 Regulates Ethylene Synthesis
by Phosphorylating and Promoting the Turnover of ACS5.” Cell Reports. Elsevier,
2014. https://doi.org/10.1016/j.celrep.2014.10.047.
ieee: S. Tan and H.-W. Xue, “Casein kinase 1 regulates ethylene synthesis by phosphorylating
and promoting the turnover of ACS5,” Cell Reports, vol. 9, no. 5. Elsevier,
pp. 1692–1702, 2014.
ista: Tan S, Xue H-W. 2014. Casein kinase 1 regulates ethylene synthesis by phosphorylating
and promoting the turnover of ACS5. Cell Reports. 9(5), 1692–1702.
mla: Tan, Shutang, and Hong-Wei Xue. “Casein Kinase 1 Regulates Ethylene Synthesis
by Phosphorylating and Promoting the Turnover of ACS5.” Cell Reports, vol.
9, no. 5, Elsevier, 2014, pp. 1692–702, doi:10.1016/j.celrep.2014.10.047.
short: S. Tan, H.-W. Xue, Cell Reports 9 (2014) 1692–1702.
date_created: 2020-03-21T16:08:18Z
date_published: 2014-12-11T00:00:00Z
date_updated: 2021-01-12T08:14:24Z
day: '11'
ddc:
- '580'
doi: 10.1016/j.celrep.2014.10.047
extern: '1'
file:
- access_level: open_access
checksum: 23c30de4ac98ce9879fc054121517626
content_type: application/pdf
creator: dernst
date_created: 2020-03-23T12:23:40Z
date_updated: 2020-07-14T12:48:01Z
file_id: '7613'
file_name: 2014_CellPress_Tan.pdf
file_size: 2755808
relation: main_file
file_date_updated: 2020-07-14T12:48:01Z
has_accepted_license: '1'
intvolume: ' 9'
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '12'
oa: 1
oa_version: Published Version
page: 1692-1702
publication: Cell Reports
publication_identifier:
issn:
- 2211-1247
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Casein kinase 1 regulates ethylene synthesis by phosphorylating and promoting
the turnover of ACS5
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2014'
...
---
_id: '9888'
abstract:
- lang: eng
text: Detailed description of the experimental prodedures, data analyses and additional
statistical analyses of the results.
article_processing_charge: No
author:
- first_name: Stephan
full_name: Wolf, Stephan
last_name: Wolf
- first_name: Dino
full_name: Mcmahon, Dino
last_name: Mcmahon
- first_name: Ka
full_name: Lim, Ka
last_name: Lim
- first_name: Christopher
full_name: Pull, Christopher
id: 3C7F4840-F248-11E8-B48F-1D18A9856A87
last_name: Pull
orcid: 0000-0003-1122-3982
- first_name: Suzanne
full_name: Clark, Suzanne
last_name: Clark
- first_name: Robert
full_name: Paxton, Robert
last_name: Paxton
- first_name: Juliet
full_name: Osborne, Juliet
last_name: Osborne
citation:
ama: Wolf S, Mcmahon D, Lim K, et al. Supporting information. 2014. doi:10.1371/journal.pone.0103989.s003
apa: Wolf, S., Mcmahon, D., Lim, K., Pull, C., Clark, S., Paxton, R., & Osborne,
J. (2014). Supporting information. Public Library of Science. https://doi.org/10.1371/journal.pone.0103989.s003
chicago: Wolf, Stephan, Dino Mcmahon, Ka Lim, Christopher Pull, Suzanne Clark, Robert
Paxton, and Juliet Osborne. “Supporting Information.” Public Library of Science,
2014. https://doi.org/10.1371/journal.pone.0103989.s003.
ieee: S. Wolf et al., “Supporting information.” Public Library of Science,
2014.
ista: Wolf S, Mcmahon D, Lim K, Pull C, Clark S, Paxton R, Osborne J. 2014. Supporting
information, Public Library of Science, 10.1371/journal.pone.0103989.s003.
mla: Wolf, Stephan, et al. Supporting Information. Public Library of Science,
2014, doi:10.1371/journal.pone.0103989.s003.
short: S. Wolf, D. Mcmahon, K. Lim, C. Pull, S. Clark, R. Paxton, J. Osborne, (2014).
date_created: 2021-08-11T14:17:53Z
date_updated: 2025-09-29T11:45:40Z
day: '06'
department:
- _id: SyCr
doi: 10.1371/journal.pone.0103989.s003
month: '08'
oa_version: Published Version
publisher: Public Library of Science
related_material:
record:
- id: '2086'
relation: used_in_publication
status: public
status: public
title: Supporting information
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '9931'
abstract:
- lang: eng
text: Gene duplication is important in evolution, because it provides new raw material
for evolutionary adaptations. Several existing hypotheses about the causes of
duplicate retention and diversification differ in their emphasis on gene dosage,
subfunctionalization, and neofunctionalization. Little experimental data exist
on the relative importance of gene expression changes and changes in coding regions
for the evolution of duplicate genes. Furthermore, we do not know how strongly
the environment could affect this importance. To address these questions, we performed
evolution experiments with the TEM-1 beta lactamase gene in Escherichia coli to
study the initial stages of duplicate gene evolution in the laboratory. We mimicked
tandem duplication by inserting two copies of the TEM-1 gene on the same plasmid.
We then subjected these copies to repeated cycles of mutagenesis and selection
in various environments that contained antibiotics in different combinations and
concentrations. Our experiments showed that gene dosage is the most important
factor in the initial stages of duplicate gene evolution, and overshadows the
importance of point mutations in the coding region.
acknowledgement: We thank the Functional Genomics Center Zurich for its service in
generating sequencing data, M. Ackermann and E. Hayden for helpful discussions,
A. de Visser for comments on earlier versions of this manuscript, and M. Moser for
help with quantitative PCR. This work was supported by Swiss National Science Foundation
(grant 315230–129708), as well as through the YeastX project of SystemsX.ch, and
the University Priority Research Program in Systems Biology at the University of
Zurich. RD acknowledges support from the Forschungskredit program of the University
of Zurich. The authors declare no conflict of interest.
article_processing_charge: No
article_type: original
author:
- first_name: Riddhiman
full_name: Dhar, Riddhiman
last_name: Dhar
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Andreas
full_name: Wagner, Andreas
last_name: Wagner
citation:
ama: Dhar R, Bergmiller T, Wagner A. Increased gene dosage plays a predominant role
in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Evolution.
2014;68(6):1775-1791. doi:10.1111/evo.12373
apa: Dhar, R., Bergmiller, T., & Wagner, A. (2014). Increased gene dosage plays
a predominant role in the initial stages of evolution of duplicate TEM-1 beta
lactamase genes. Evolution. Wiley. https://doi.org/10.1111/evo.12373
chicago: Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Increased Gene
Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
TEM-1 Beta Lactamase Genes.” Evolution. Wiley, 2014. https://doi.org/10.1111/evo.12373.
ieee: R. Dhar, T. Bergmiller, and A. Wagner, “Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes,”
Evolution, vol. 68, no. 6. Wiley, pp. 1775–1791, 2014.
ista: Dhar R, Bergmiller T, Wagner A. 2014. Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
Evolution. 68(6), 1775–1791.
mla: Dhar, Riddhiman, et al. “Increased Gene Dosage Plays a Predominant Role in
the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” Evolution,
vol. 68, no. 6, Wiley, 2014, pp. 1775–91, doi:10.1111/evo.12373.
short: R. Dhar, T. Bergmiller, A. Wagner, Evolution 68 (2014) 1775–1791.
date_created: 2021-08-17T09:03:09Z
date_published: 2014-06-03T00:00:00Z
date_updated: 2025-09-29T13:20:48Z
day: '03'
department:
- _id: CaGu
doi: 10.1111/evo.12373
external_id:
isi:
- '000337558900019'
pmid:
- '24495000'
intvolume: ' 68'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 1775-1791
pmid: 1
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '9932'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Increased gene dosage plays a predominant role in the initial stages of evolution
of duplicate TEM-1 beta lactamase genes
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 68
year: '2014'
...
---
_id: '9932'
abstract:
- lang: eng
text: Gene duplication is important in evolution, because it provides new raw material
for evolutionary adaptations. Several existing hypotheses about the causes of
duplicate retention and diversification differ in their emphasis on gene dosage,
sub-functionalization, and neo-functionalization. Little experimental data exists
on the relative importance of gene expression changes and changes in coding regions
for the evolution of duplicate genes. Furthermore, we do not know how strongly
the environment could affect this importance. To address these questions, we performed
evolution experiments with the TEM-1 beta lactamase gene in E. coli to study the
initial stages of duplicate gene evolution in the laboratory. We mimicked tandem
duplication by inserting two copies of the TEM-1 gene on the same plasmid. We
then subjected these copies to repeated cycles of mutagenesis and selection in
various environments that contained antibiotics in different combinations and
concentrations. Our experiments showed that gene dosage is the most important
factor in the initial stages of duplicate gene evolution, and overshadows the
importance of point mutations in the coding region.
article_processing_charge: No
author:
- first_name: Riddhiman
full_name: Dhar, Riddhiman
last_name: Dhar
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Andreas
full_name: Wagner, Andreas
last_name: Wagner
citation:
ama: 'Dhar R, Bergmiller T, Wagner A. Data from: Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
2014. doi:10.5061/dryad.jc402'
apa: 'Dhar, R., Bergmiller, T., & Wagner, A. (2014). Data from: Increased gene
dosage plays a predominant role in the initial stages of evolution of duplicate
TEM-1 beta lactamase genes. Dryad. https://doi.org/10.5061/dryad.jc402'
chicago: 'Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Data from: Increased
Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
TEM-1 Beta Lactamase Genes.” Dryad, 2014. https://doi.org/10.5061/dryad.jc402.'
ieee: 'R. Dhar, T. Bergmiller, and A. Wagner, “Data from: Increased gene dosage
plays a predominant role in the initial stages of evolution of duplicate TEM-1
beta lactamase genes.” Dryad, 2014.'
ista: 'Dhar R, Bergmiller T, Wagner A. 2014. Data from: Increased gene dosage plays
a predominant role in the initial stages of evolution of duplicate TEM-1 beta
lactamase genes, Dryad, 10.5061/dryad.jc402.'
mla: 'Dhar, Riddhiman, et al. Data from: Increased Gene Dosage Plays a Predominant
Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.
Dryad, 2014, doi:10.5061/dryad.jc402.'
short: R. Dhar, T. Bergmiller, A. Wagner, (2014).
date_created: 2021-08-17T09:11:40Z
date_published: 2014-01-27T00:00:00Z
date_updated: 2025-09-29T13:20:47Z
day: '27'
department:
- _id: CaGu
doi: 10.5061/dryad.jc402
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.jc402
month: '01'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '9931'
relation: used_in_publication
status: public
status: public
title: 'Data from: Increased gene dosage plays a predominant role in the initial stages
of evolution of duplicate TEM-1 beta lactamase genes'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '348'
abstract:
- lang: eng
text: "Bi2S3-xTex bulk nanocomposites with crystal domain sizes in the range from
50 nm to 100 nm were obtained from the reaction of Bi2S3 nanorods with Te powder.
The thermoelectric properties of the obtained nanocomposites were analysed in
the temperature range from 0°C to 300°C. We observed how the thermoelectric properties
of the material improved with the annealing temperature, being a spark plasma
sintering process needed to maintain the material nanostructuration while maximising
its electrical properties. Finally thermoelectric dimensionless figures of merit
ZT up to 0.42 were obtained before any charge carrier concentration optimisation.
Copyright © 2014 Inderscience Enterprises Ltd.\r\n\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Umberto
full_name: Anselmi Tamburini, Umberto
last_name: Anselmi Tamburini
- first_name: Oscar
full_name: Durá, Oscar
last_name: Durá
- first_name: Marco
full_name: De La Torre, Marco
last_name: De La Torre
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A. Thermoelectric
properties of bottom up assembled Bi2S 3-xTex nanocomposites. International
Journal of Nanotechnology. 2014;11(9-11):773-784. doi:10.1504/IJNT.2014.063787
apa: Cadavid, D., Ibáñez, M., Anselmi Tamburini, U., Durá, O., De La Torre, M.,
& Cabot, A. (2014). Thermoelectric properties of bottom up assembled Bi2S
3-xTex nanocomposites. International Journal of Nanotechnology. Inderscience
Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063787
chicago: Cadavid, Doris, Maria Ibáñez, Umberto Anselmi Tamburini, Oscar Durá, Marco
De La Torre, and Andreu Cabot. “Thermoelectric Properties of Bottom up Assembled
Bi2S 3-XTex Nanocomposites.” International Journal of Nanotechnology. Inderscience
Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063787.
ieee: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, and
A. Cabot, “Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites,”
International Journal of Nanotechnology, vol. 11, no. 9–11. Inderscience
Enterprises Limited , pp. 773–784, 2014.
ista: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A.
2014. Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites.
International Journal of Nanotechnology. 11(9–11), 773–784.
mla: Cadavid, Doris, et al. “Thermoelectric Properties of Bottom up Assembled Bi2S
3-XTex Nanocomposites.” International Journal of Nanotechnology, vol. 11,
no. 9–11, Inderscience Enterprises Limited , 2014, pp. 773–84, doi:10.1504/IJNT.2014.063787.
short: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, A.
Cabot, International Journal of Nanotechnology 11 (2014) 773–784.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T07:43:44Z
day: '01'
doi: 10.1504/IJNT.2014.063787
extern: '1'
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '01'
oa_version: None
page: 773 - 784
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7476'
quality_controlled: '1'
status: public
title: Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...
---
_id: '349'
abstract:
- lang: eng
text: 'Thermoelectricity is a key technology with the potential to improve the efficiency
of energy conversion processes, which may strongly benefit from advances in the
field of nanotechnology. Nanostructured materials are very appealing for thermoelectric
applications, but the full development of their potential requires precise control
of their properties at the nanoscale. Bottom-up assembly of nanoparticles provides
access to a three-dimensional composition control at the nanoscale not attainable
in any other technology. In particular, colloidal nanoheterostructures are especially
interesting building blocks for the bottom-up production of functional nanomaterials.
In the present work, we use PbTe@PbS core-shell nanoparticles as building blocks
for the bottom-up production of PbTe-PbS nanocomposites. We used a ligand exchange
strategy and a hot press process to promote the electrical conductivity of the
nanocomposite and to increase its density. These two approaches allowed us to
improve the performance of bottom-up assembled PbTe-PbS bulk nanostructured materials. '
article_processing_charge: No
article_type: original
author:
- first_name: Silvia
full_name: Ortega, Silvia
last_name: Ortega
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Ortega S, Ibáñez M, Cadavid D, Cabot A. Bottom up processing of PbTe PbS thermoelectric
nanocomposites. International Journal of Nanotechnology. 2014;11(9-11):955-970.
doi:10.1504/IJNT.2014.063802
apa: Ortega, S., Ibáñez, M., Cadavid, D., & Cabot, A. (2014). Bottom up processing
of PbTe PbS thermoelectric nanocomposites. International Journal of Nanotechnology.
Inderscience Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063802
chicago: Ortega, Silvia, Maria Ibáñez, Doris Cadavid, and Andreu Cabot. “Bottom
up Processing of PbTe PbS Thermoelectric Nanocomposites.” International Journal
of Nanotechnology. Inderscience Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063802.
ieee: S. Ortega, M. Ibáñez, D. Cadavid, and A. Cabot, “Bottom up processing of PbTe
PbS thermoelectric nanocomposites,” International Journal of Nanotechnology,
vol. 11, no. 9–11. Inderscience Enterprises Limited , pp. 955–970, 2014.
ista: Ortega S, Ibáñez M, Cadavid D, Cabot A. 2014. Bottom up processing of PbTe
PbS thermoelectric nanocomposites. International Journal of Nanotechnology. 11(9–11),
955–970.
mla: Ortega, Silvia, et al. “Bottom up Processing of PbTe PbS Thermoelectric Nanocomposites.”
International Journal of Nanotechnology, vol. 11, no. 9–11, Inderscience
Enterprises Limited , 2014, pp. 955–70, doi:10.1504/IJNT.2014.063802.
short: S. Ortega, M. Ibáñez, D. Cadavid, A. Cabot, International Journal of Nanotechnology
11 (2014) 955–970.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-07-21T00:00:00Z
date_updated: 2021-01-12T07:43:48Z
day: '21'
doi: 10.1504/IJNT.2014.063802
extern: '1'
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '07'
oa_version: None
page: 955 - 970
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7477'
quality_controlled: '1'
status: public
title: Bottom up processing of PbTe PbS thermoelectric nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...