---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19966'
abstract:
- lang: eng
text: Recently discovered nanofluidic memristors, have raised promises for the development
of iontronics and neuromorphic computing with ions. Ionic memory effects are related
to ion dynamics inside nanochannels, with timescales associated with the manifold
physicochemical phenomena occurring at confined interfaces. Here, we explore experimentally
the frequency-dependent current–voltage response of model nanochannels—namely
glass nanopipettes—to investigate memory effects in ion transport. This characterisation,
which we refer to as mem-spectrometry, highlights two characteristic frequencies,
associated with short and long timescales of the order of 50 ms and 50 s in the
present system. Whereas the former can be associated with ionic diffusion, very
long timescales are difficult to explain with conventional transport phenomena.
We develop a minimal model accounting for these mem-spectrometry results, pointing
to surface charge regulation and ionic adsorption-desorption as possible origins
for the long-term memory. Our work demonstrates the relevance of mem-spectrometry
to highlight subtle ion transport properties in nanochannels, giving hereby new
insights on the mechanisms governing ion transport and current rectification in
charged conical nanopores.
acknowledgement: The authors acknowledge ERC n-AQUA for funding. S J acknowledges
CNRS for funding. The authors thank Hummink for pipette supply and characterization.
P R acknowledges funding from the European Union Horizon 2020 research and innovation
program under the Marie Skodowska-Curie Grant Agreement No. 101034413.
article_number: '065001'
article_processing_charge: Yes
article_type: original
author:
- first_name: Simon
full_name: Jouveshomme, Simon
last_name: Jouveshomme
- first_name: Mathieu
full_name: Lizée, Mathieu
last_name: Lizée
- first_name: Paul
full_name: Robin, Paul
id: 48c58128-57b0-11ee-9095-dc28fd97fc1d
last_name: Robin
orcid: 0000-0002-5728-9189
- first_name: Lydéric
full_name: Bocquet, Lydéric
last_name: Bocquet
citation:
ama: Jouveshomme S, Lizée M, Robin P, Bocquet L. Multiple ionic memories in asymmetric
nanochannels revealed by mem-spectrometry. New Journal of Physics. 2025;27(6).
doi:10.1088/1367-2630/ade61b
apa: Jouveshomme, S., Lizée, M., Robin, P., & Bocquet, L. (2025). Multiple ionic
memories in asymmetric nanochannels revealed by mem-spectrometry. New Journal
of Physics. IOP Publishing. https://doi.org/10.1088/1367-2630/ade61b
chicago: Jouveshomme, Simon, Mathieu Lizée, Paul Robin, and Lydéric Bocquet. “Multiple
Ionic Memories in Asymmetric Nanochannels Revealed by Mem-Spectrometry.” New
Journal of Physics. IOP Publishing, 2025. https://doi.org/10.1088/1367-2630/ade61b.
ieee: S. Jouveshomme, M. Lizée, P. Robin, and L. Bocquet, “Multiple ionic memories
in asymmetric nanochannels revealed by mem-spectrometry,” New Journal of Physics,
vol. 27, no. 6. IOP Publishing, 2025.
ista: Jouveshomme S, Lizée M, Robin P, Bocquet L. 2025. Multiple ionic memories
in asymmetric nanochannels revealed by mem-spectrometry. New Journal of Physics.
27(6), 065001.
mla: Jouveshomme, Simon, et al. “Multiple Ionic Memories in Asymmetric Nanochannels
Revealed by Mem-Spectrometry.” New Journal of Physics, vol. 27, no. 6,
065001, IOP Publishing, 2025, doi:10.1088/1367-2630/ade61b.
short: S. Jouveshomme, M. Lizée, P. Robin, L. Bocquet, New Journal of Physics 27
(2025).
date_created: 2025-07-06T22:01:23Z
date_published: 2025-06-01T00:00:00Z
date_updated: 2025-09-30T13:47:45Z
day: '01'
ddc:
- '530'
department:
- _id: EdHa
doi: 10.1088/1367-2630/ade61b
ec_funded: 1
external_id:
isi:
- '001517731700001'
file:
- access_level: open_access
checksum: e0e11aa01c54b20ee6cdd1f6b999571f
content_type: application/pdf
creator: dernst
date_created: 2025-07-08T06:11:59Z
date_updated: 2025-07-08T06:11:59Z
file_id: '19973'
file_name: 2025_NewJourPhysics_Jouveshomme.pdf
file_size: 1296141
relation: main_file
success: 1
file_date_updated: 2025-07-08T06:11:59Z
has_accepted_license: '1'
intvolume: ' 27'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: New Journal of Physics
publication_identifier:
eissn:
- 1367-2630
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multiple ionic memories in asymmetric nanochannels revealed by mem-spectrometry
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 27
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20670'
abstract:
- lang: eng
text: 'β-Barrel nanopores are involved in crucial biological processes, from ATP
export in mitochondria to bacterial resistance, and represent a promising platform
for emerging sequencing technologies. However, in contrast to ion channels, the
understanding of the fundamental principles governing ion transport through these
nanopores remains largely unexplored. Here we integrate experimental, numerical
and theoretical approaches to elucidate ion transport mechanisms in β-barrel nanopores.
We identify and characterize two distinct nonlinear phenomena: open-pore rectification
and gating. Through extensive mutation analysis of aerolysin nanopores, we demonstrate
that open-pore rectification is caused by ionic accumulation driven by the distribution
of lumen charges. In addition, we provide converging evidence suggesting that
gating is controlled by electric fields dissociating counterions from lumen charges,
promoting local structural deformations. Our findings establish a rigorous framework
for characterizing and understanding ion transport processes in protein-based
nanopores, enabling the design of adaptable nanofluidic biotechnologies. We illustrate
this by optimizing an aerolysin mutant for computing applications.'
acknowledgement: We are grateful to M. Mayer and G. van der Goot for their insightful
discussions and thoughtful feedback. We acknowledge funding from the European Research
Council (grants 101020445—2D-LIQUID N.R. and A.R., MSCA number 101034413 P.R.),
the Swiss National Science Foundation (grants 205321_192371 and 200021L_212128 to
M.D.P., TMPFP2-217134 to T.E., and IZSEZ0_183779 to J.H.G. and A.R.) and the Swiss
National Supercomputing Centre (CSCS) for access to the HPC resources used to run
MD simulations. We thank the staff members of the Dubochet Center for Imaging in
Lausanne, in particular E. Uchikawa and S. Nazarov, for their assistance with cryo-EM
sample preparation and data collection. We thank A. Antanasijevic and Y. Duhoo from
EPFL Protein Production and Structure Core Facility for their support in cryo-EM
data processing.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Simon
full_name: Mayer, Simon
last_name: Mayer
- first_name: Marianna Fanouria
full_name: Mitsioni, Marianna Fanouria
last_name: Mitsioni
- first_name: Paul
full_name: Robin, Paul
id: 48c58128-57b0-11ee-9095-dc28fd97fc1d
last_name: Robin
orcid: 0000-0002-5728-9189
- first_name: Lukas
full_name: Van Den Heuvel, Lukas
last_name: Van Den Heuvel
- first_name: Nathan
full_name: Ronceray, Nathan
last_name: Ronceray
- first_name: Maria Jose
full_name: Marcaida, Maria Jose
last_name: Marcaida
- first_name: Luciano A.
full_name: Abriata, Luciano A.
last_name: Abriata
- first_name: Lucien F.
full_name: Krapp, Lucien F.
last_name: Krapp
- first_name: Jana S.
full_name: Anton, Jana S.
last_name: Anton
- first_name: Sarah
full_name: Soussou, Sarah
last_name: Soussou
- first_name: Justin
full_name: Jeanneret-Grosjean, Justin
last_name: Jeanneret-Grosjean
- first_name: Alessandro
full_name: Fulciniti, Alessandro
last_name: Fulciniti
- first_name: Alexia
full_name: Möller, Alexia
last_name: Möller
- first_name: Sarah
full_name: Vacle, Sarah
last_name: Vacle
- first_name: Lely
full_name: Feletti, Lely
last_name: Feletti
- first_name: Henry
full_name: Brinkerhoff, Henry
last_name: Brinkerhoff
- first_name: Andrew H.
full_name: Laszlo, Andrew H.
last_name: Laszlo
- first_name: Jens H.
full_name: Gundlach, Jens H.
last_name: Gundlach
- first_name: Theo
full_name: Emmerich, Theo
last_name: Emmerich
- first_name: Matteo
full_name: Dal Peraro, Matteo
last_name: Dal Peraro
- first_name: Aleksandra
full_name: Radenovic, Aleksandra
last_name: Radenovic
citation:
ama: Mayer S, Mitsioni MF, Robin P, et al. Lumen charge governs gated ion transport
in β-barrel nanopores. Nature Nanotechnology. 2025. doi:10.1038/s41565-025-02052-6
apa: Mayer, S., Mitsioni, M. F., Robin, P., Van Den Heuvel, L., Ronceray, N., Marcaida,
M. J., … Radenovic, A. (2025). Lumen charge governs gated ion transport in β-barrel
nanopores. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/s41565-025-02052-6
chicago: Mayer, Simon, Marianna Fanouria Mitsioni, Paul Robin, Lukas Van Den Heuvel,
Nathan Ronceray, Maria Jose Marcaida, Luciano A. Abriata, et al. “Lumen Charge
Governs Gated Ion Transport in β-Barrel Nanopores.” Nature Nanotechnology.
Springer Nature, 2025. https://doi.org/10.1038/s41565-025-02052-6.
ieee: S. Mayer et al., “Lumen charge governs gated ion transport in β-barrel
nanopores,” Nature Nanotechnology. Springer Nature, 2025.
ista: Mayer S, Mitsioni MF, Robin P, Van Den Heuvel L, Ronceray N, Marcaida MJ,
Abriata LA, Krapp LF, Anton JS, Soussou S, Jeanneret-Grosjean J, Fulciniti A,
Möller A, Vacle S, Feletti L, Brinkerhoff H, Laszlo AH, Gundlach JH, Emmerich
T, Dal Peraro M, Radenovic A. 2025. Lumen charge governs gated ion transport in
β-barrel nanopores. Nature Nanotechnology.
mla: Mayer, Simon, et al. “Lumen Charge Governs Gated Ion Transport in β-Barrel
Nanopores.” Nature Nanotechnology, Springer Nature, 2025, doi:10.1038/s41565-025-02052-6.
short: S. Mayer, M.F. Mitsioni, P. Robin, L. Van Den Heuvel, N. Ronceray, M.J. Marcaida,
L.A. Abriata, L.F. Krapp, J.S. Anton, S. Soussou, J. Jeanneret-Grosjean, A. Fulciniti,
A. Möller, S. Vacle, L. Feletti, H. Brinkerhoff, A.H. Laszlo, J.H. Gundlach, T.
Emmerich, M. Dal Peraro, A. Radenovic, Nature Nanotechnology (2025).
date_created: 2025-11-23T23:01:40Z
date_published: 2025-11-11T00:00:00Z
date_updated: 2025-12-01T15:20:40Z
day: '11'
department:
- _id: EdHa
doi: 10.1038/s41565-025-02052-6
external_id:
isi:
- '001611698900001'
pmid:
- '41219410'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41565-025-02052-6
month: '11'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Nanotechnology
publication_identifier:
eissn:
- 1748-3395
issn:
- 1748-3387
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lumen charge governs gated ion transport in β-barrel nanopores
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19279'
abstract:
- lang: eng
text: Recent experimental advances in nanofluidics have allowed to explore ion transport
across molecular-scale pores, in particular, for iontronic applications. Two-dimensional
nanochannels—in which a single molecular layer of electrolyte is confined between
solid walls—constitute a unique platform to investigate fluid and ion transport
in extreme confinement, highlighting unconventional transport properties. In this
work, we study ionic association in 2D nanochannels, and its consequences on non-linear
ionic transport, using both molecular dynamics simulations and analytical theory.
We show that under sufficient confinement, ions assemble into pairs or larger
clusters in a process analogous to a Kosterlitz–Thouless transition, here modified
by the dielectric confinement. We further show that the breaking of pairs results
in an electric-field dependent conduction, a mechanism usually known as the second
Wien effect. However the 2D nature of the system results in non-universal, temperature-dependent,
scaling of the conductivity with electric field, leading to ionic coulomb blockade
in some regimes. A 2D generalization of the Onsager theory fully accounts for
the non-linear transport. These results suggest ways to exploit electrostatic
interactions between ions to build new nanofluidic devices.
acknowledgement: The authors thank B. Coquinot and G. Monet for fruitful discussions.
L.B. acknowledges support from ERC-Synergy Grant Agreement No. 101071937, n-AQUA.
P.R. acknowledges support from the European Union’s Horizon 2020 research and innovation
program under Marie Sklodowska-Curie Grant Agreement No. 101034413.
article_number: '064703'
article_processing_charge: Yes (in subscription journal)
article_type: original
arxiv: 1
author:
- first_name: Damien
full_name: Toquer, Damien
last_name: Toquer
- first_name: Lydéric
full_name: Bocquet, Lydéric
last_name: Bocquet
- first_name: Paul
full_name: Robin, Paul
id: 48c58128-57b0-11ee-9095-dc28fd97fc1d
last_name: Robin
orcid: 0000-0002-5728-9189
citation:
ama: Toquer D, Bocquet L, Robin P. Ionic association and Wien effect in 2D confined
electrolytes. Journal of Chemical Physics. 2025;162(6). doi:10.1063/5.0241949
apa: Toquer, D., Bocquet, L., & Robin, P. (2025). Ionic association and Wien
effect in 2D confined electrolytes. Journal of Chemical Physics. AIP Publishing.
https://doi.org/10.1063/5.0241949
chicago: Toquer, Damien, Lydéric Bocquet, and Paul Robin. “Ionic Association and
Wien Effect in 2D Confined Electrolytes.” Journal of Chemical Physics.
AIP Publishing, 2025. https://doi.org/10.1063/5.0241949.
ieee: D. Toquer, L. Bocquet, and P. Robin, “Ionic association and Wien effect in
2D confined electrolytes,” Journal of Chemical Physics, vol. 162, no. 6.
AIP Publishing, 2025.
ista: Toquer D, Bocquet L, Robin P. 2025. Ionic association and Wien effect in 2D
confined electrolytes. Journal of Chemical Physics. 162(6), 064703.
mla: Toquer, Damien, et al. “Ionic Association and Wien Effect in 2D Confined Electrolytes.”
Journal of Chemical Physics, vol. 162, no. 6, 064703, AIP Publishing, 2025,
doi:10.1063/5.0241949.
short: D. Toquer, L. Bocquet, P. Robin, Journal of Chemical Physics 162 (2025).
corr_author: '1'
date_created: 2025-03-02T23:01:52Z
date_published: 2025-02-14T00:00:00Z
date_updated: 2025-09-30T10:44:48Z
day: '14'
ddc:
- '540'
department:
- _id: EdHa
doi: 10.1063/5.0241949
ec_funded: 1
external_id:
arxiv:
- '2410.03316'
isi:
- '001421300300001'
pmid:
- '39932241'
file:
- access_level: open_access
checksum: c9008c2c50c917673aa588f75acbcb40
content_type: application/pdf
creator: dernst
date_created: 2025-03-04T10:29:36Z
date_updated: 2025-03-04T10:29:36Z
file_id: '19290'
file_name: 2025_JourChemicalPhysics_Toquer.pdf
file_size: 5807062
relation: main_file
success: 1
file_date_updated: 2025-03-04T10:29:36Z
has_accepted_license: '1'
intvolume: ' 162'
isi: 1
issue: '6'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: Journal of Chemical Physics
publication_identifier:
eissn:
- 1089-7690
issn:
- 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ionic association and Wien effect in 2D confined electrolytes
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 162
year: '2025'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '21235'
abstract:
- lang: eng
text: The condensation of charged polymers is an important driver for the formation
of biomolecular condensates. Recent experiments suggest that this mechanism also
controls the clustering of eukaryotic chromosomes during the late stages of cell
division. In this process, interchromosome attraction is driven by the condensation
of cytoplasmic RNA and Ki-67, a charged intrinsically disordered protein that
coats the chromosomes as a brush. Attraction between chromosomes has been shown
to be specifically promoted by a localized charged patch on Ki-67, although the
physical mechanism remains unclear. To elucidate this process, we combine coarse-grained
simulations and analytical theory to study the RNA-mediated interaction between
charged polymer brushes on the chromosome surfaces. We show that the charged patch
on Ki-67 leads to interchromosome attraction via RNA bridging between the two
brushes, whereby the RNA preferentially interacts with the charged patches, leading
to stable, long-range forces. By contrast, if the brush is uniformly charged,
bridging is basically absent due to complete adsorption of RNA onto the brush.
Moreover, the RNA dynamics becomes caged in presence of the charged patch while
remaining diffusive with uniform charge. Our work sheds light on the physical
origin of chromosome clustering, while also suggesting a general mechanism for
cells to tune work production by biomolecular condensates via different charge
distributions.
acknowledgement: "This work was supported by the European Union’s Horizon 2020 research
and innovation programme (A.Š. and V.S., ERC grant Agreement No. 802960 to A.Š.,
I.P. and P.R.,\r\nMarie Skłodowska-Curie Grant Agreement No. 101034413), the German
Research Foundation (S.C-H. and A.H.-A., DFG Project No. 402723784 to S.C-H.), the
Vallee Scholarship\r\n(A.Š. and V.S.), the EMBO Young Investigator Programme (A.Š.),
and a Ph.D. fellowship from the Boehringer Ingelheim Fonds (A.H.-A.)."
article_number: '033010'
article_processing_charge: Yes
article_type: original
author:
- first_name: Valerio
full_name: Sorichetti, Valerio
id: ef8a92cb-c7b6-11ec-8bea-e1fd5847bc5b
last_name: Sorichetti
orcid: 0000-0002-9645-6576
- first_name: Paul
full_name: Robin, Paul
id: 48c58128-57b0-11ee-9095-dc28fd97fc1d
last_name: Robin
orcid: 0000-0002-5728-9189
- first_name: Ivan
full_name: Palaia, Ivan
id: 9c805cd2-4b75-11ec-a374-db6dd0ed57fa
last_name: Palaia
orcid: ' 0000-0002-8843-9485 '
- first_name: Alberto
full_name: Hernandez-Armendariz, Alberto
last_name: Hernandez-Armendariz
- first_name: Sara
full_name: Cuylen-Haering, Sara
last_name: Cuylen-Haering
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
citation:
ama: Sorichetti V, Robin P, Palaia I, Hernandez-Armendariz A, Cuylen-Haering S,
Šarić A. Charge distribution of the coating brush drives interchromosome attraction.
PRX Life. 2025;3(3). doi:10.1103/41fd-r847
apa: Sorichetti, V., Robin, P., Palaia, I., Hernandez-Armendariz, A., Cuylen-Haering,
S., & Šarić, A. (2025). Charge distribution of the coating brush drives interchromosome
attraction. PRX Life. American Physical Society. https://doi.org/10.1103/41fd-r847
chicago: Sorichetti, Valerio, Paul Robin, Ivan Palaia, Alberto Hernandez-Armendariz,
Sara Cuylen-Haering, and Anđela Šarić. “Charge Distribution of the Coating Brush
Drives Interchromosome Attraction.” PRX Life. American Physical Society,
2025. https://doi.org/10.1103/41fd-r847.
ieee: V. Sorichetti, P. Robin, I. Palaia, A. Hernandez-Armendariz, S. Cuylen-Haering,
and A. Šarić, “Charge distribution of the coating brush drives interchromosome
attraction,” PRX Life, vol. 3, no. 3. American Physical Society, 2025.
ista: Sorichetti V, Robin P, Palaia I, Hernandez-Armendariz A, Cuylen-Haering S,
Šarić A. 2025. Charge distribution of the coating brush drives interchromosome
attraction. PRX Life. 3(3), 033010.
mla: Sorichetti, Valerio, et al. “Charge Distribution of the Coating Brush Drives
Interchromosome Attraction.” PRX Life, vol. 3, no. 3, 033010, American
Physical Society, 2025, doi:10.1103/41fd-r847.
short: V. Sorichetti, P. Robin, I. Palaia, A. Hernandez-Armendariz, S. Cuylen-Haering,
A. Šarić, PRX Life 3 (2025).
corr_author: '1'
date_created: 2026-02-16T14:50:32Z
date_published: 2025-08-11T00:00:00Z
date_updated: 2026-02-17T11:16:26Z
day: '11'
ddc:
- '570'
department:
- _id: AnSa
- _id: EdHa
doi: 10.1103/41fd-r847
ec_funded: 1
file:
- access_level: open_access
checksum: 1702b9bdbfd902a7c08aa4f1479b390d
content_type: application/pdf
creator: dernst
date_created: 2026-02-17T11:12:30Z
date_updated: 2026-02-17T11:12:30Z
file_id: '21287'
file_name: 2025_PRXLife_Sorichetti.pdf
file_size: 3732843
relation: main_file
success: 1
file_date_updated: 2026-02-17T11:12:30Z
has_accepted_license: '1'
intvolume: ' 3'
issue: '3'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: eba2549b-77a9-11ec-83b8-a81e493eae4e
call_identifier: H2020
grant_number: '802960'
name: 'Non-Equilibrium Protein Assembly: from Building Blocks to Biological Machines'
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
- _id: 349b6ff1-11ca-11ed-8bc3-f006047c2eeb
name: EMBO Young Investigator Program - Andela Saric
publication: PRX Life
publication_identifier:
eissn:
- 2835-8279
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Charge distribution of the coating brush drives interchromosome attraction
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: 3
year: '2025'
...
---
_id: '15024'
abstract:
- lang: eng
text: Electrostatic correlations between ions dissolved in water are known to impact
their transport properties in numerous ways, from conductivity to ion selectivity.
The effects of these correlations on the solvent itself remain, however, much
less clear. In particular, the addition of salt has been consistently reported
to affect the solution’s viscosity, but most modeling attempts fail to reproduce
experimental data even at moderate salt concentrations. Here, we use an approach
based on stochastic density functional theory, which accurately captures charge
fluctuations and correlations. We derive a simple analytical expression for the
viscosity correction in concentrated electrolytes, by directly linking it to the
liquid’s structure factor. Our prediction compares quantitatively to experimental
data at all temperatures and all salt concentrations up to the saturation limit.
This universal link between the microscopic structure and viscosity allows us
to shed light on the nanoscale dynamics of water and ions under highly concentrated
and correlated conditions.
acknowledgement: The author thanks Lydéric Bocquet, Baptiste Coquinot, and Mathieu
Lizée for fruitful discussions. This project received funding from the European
Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie
Grant Agreement No. 101034413.
article_number: '064503'
article_processing_charge: Yes (in subscription journal)
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arxiv: 1
author:
- first_name: Paul
full_name: Robin, Paul
id: 48c58128-57b0-11ee-9095-dc28fd97fc1d
last_name: Robin
orcid: 0000-0002-5728-9189
citation:
ama: Robin P. Correlation-induced viscous dissipation in concentrated electrolytes.
Journal of Chemical Physics. 2024;160(6). doi:10.1063/5.0188215
apa: Robin, P. (2024). Correlation-induced viscous dissipation in concentrated electrolytes.
Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/5.0188215
chicago: Robin, Paul. “Correlation-Induced Viscous Dissipation in Concentrated Electrolytes.”
Journal of Chemical Physics. AIP Publishing, 2024. https://doi.org/10.1063/5.0188215.
ieee: P. Robin, “Correlation-induced viscous dissipation in concentrated electrolytes,”
Journal of Chemical Physics, vol. 160, no. 6. AIP Publishing, 2024.
ista: Robin P. 2024. Correlation-induced viscous dissipation in concentrated electrolytes.
Journal of Chemical Physics. 160(6), 064503.
mla: Robin, Paul. “Correlation-Induced Viscous Dissipation in Concentrated Electrolytes.”
Journal of Chemical Physics, vol. 160, no. 6, 064503, AIP Publishing, 2024,
doi:10.1063/5.0188215.
short: P. Robin, Journal of Chemical Physics 160 (2024).
corr_author: '1'
date_created: 2024-02-25T23:00:55Z
date_published: 2024-02-14T00:00:00Z
date_updated: 2025-09-04T12:07:33Z
day: '14'
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department:
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doi: 10.1063/5.0188215
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external_id:
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pmid:
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title: Correlation-induced viscous dissipation in concentrated electrolytes
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