---
OA_place: repository
OA_type: green
_id: '22212'
abstract:
- lang: eng
  text: "Anisotropic colloidal particles exhibit complex dynamics which play a crucial
    role in their functionality,\r\ntransport, and phase behavior. In this Letter,
    we investigate the two-dimensional diffusion of smoothly curved\r\ncolloidal rods—also
    known as colloidal bananas—as a function of their opening angle α. We measure
    the\r\ntranslational and rotational diffusion coefficients of the particles with
    opening angles ranging from 0◦ (straight\r\nrods) to nearly 360◦(closed rings).
    In particular, we find that the anisotropic diffusion of the particles varies\r\nnonmonotonically
    with their opening angle and that the axis of fastest diffusion switches from
    the long to the\r\nshort axis of the particles when α> 180◦. We also find that
    the rotational diffusion coefficient of nearly closed\r\nrings is approximately
    an order of magnitude higher than that of straight rods of the same length. Finally,
    we\r\nshow that the experimental results are consistent with slender body theory,
    indicating that the dynamical behavior\r\nof the particles arises primarily from
    their local drag anisotropy. These results highlight the impact of curvature\r\non
    the Brownian motion of elongated colloidal particles, which must be taken into
    account when seeking to\r\nunderstand the behavior of curved colloidal particles."
article_number: L042602
article_processing_charge: No
article_type: letter_note
arxiv: 1
author:
- first_name: Justin-Aurel
  full_name: Ulbrich, Justin-Aurel
  last_name: Ulbrich
- first_name: Carla
  full_name: Fernández-Rico, Carla
  id: 492def71-6250-11f0-b278-d41dbd241b62
  last_name: Fernández-Rico
- first_name: Brian
  full_name: Rost, Brian
  last_name: Rost
- first_name: Jacopo
  full_name: Vialetto, Jacopo
  last_name: Vialetto
- first_name: Lucio
  full_name: Isa, Lucio
  last_name: Isa
- first_name: Jeffrey S.
  full_name: Urbach, Jeffrey S.
  last_name: Urbach
- first_name: Roel P. A.
  full_name: Dullens, Roel P. A.
  last_name: Dullens
citation:
  ama: Ulbrich J-A, Fernández-Rico C, Rost B, et al. Effect of curvature on the diffusion
    of colloidal bananas. <i>Physical Review E</i>. 2023;107(4). doi:<a href="https://doi.org/10.1103/physreve.107.l042602">10.1103/physreve.107.l042602</a>
  apa: Ulbrich, J.-A., Fernández-Rico, C., Rost, B., Vialetto, J., Isa, L., Urbach,
    J. S., &#38; Dullens, R. P. A. (2023). Effect of curvature on the diffusion of
    colloidal bananas. <i>Physical Review E</i>. American Physical Society. <a href="https://doi.org/10.1103/physreve.107.l042602">https://doi.org/10.1103/physreve.107.l042602</a>
  chicago: Ulbrich, Justin-Aurel, Carla Fernández-Rico, Brian Rost, Jacopo Vialetto,
    Lucio Isa, Jeffrey S. Urbach, and Roel P. A. Dullens. “Effect of Curvature on
    the Diffusion of Colloidal Bananas.” <i>Physical Review E</i>. American Physical
    Society, 2023. <a href="https://doi.org/10.1103/physreve.107.l042602">https://doi.org/10.1103/physreve.107.l042602</a>.
  ieee: J.-A. Ulbrich <i>et al.</i>, “Effect of curvature on the diffusion of colloidal
    bananas,” <i>Physical Review E</i>, vol. 107, no. 4. American Physical Society,
    2023.
  ista: Ulbrich J-A, Fernández-Rico C, Rost B, Vialetto J, Isa L, Urbach JS, Dullens
    RPA. 2023. Effect of curvature on the diffusion of colloidal bananas. Physical
    Review E. 107(4), L042602.
  mla: Ulbrich, Justin-Aurel, et al. “Effect of Curvature on the Diffusion of Colloidal
    Bananas.” <i>Physical Review E</i>, vol. 107, no. 4, L042602, American Physical
    Society, 2023, doi:<a href="https://doi.org/10.1103/physreve.107.l042602">10.1103/physreve.107.l042602</a>.
  short: J.-A. Ulbrich, C. Fernández-Rico, B. Rost, J. Vialetto, L. Isa, J.S. Urbach,
    R.P.A. Dullens, Physical Review E 107 (2023).
date_created: 2026-06-30T06:32:12Z
date_published: 2023-04-21T00:00:00Z
date_updated: 2026-07-15T07:09:52Z
day: '21'
ddc:
- '530'
doi: 10.1103/physreve.107.l042602
extern: '1'
external_id:
  arxiv:
  - '2211.07274'
has_accepted_license: '1'
intvolume: '       107'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2211.07274
month: '04'
oa: 1
oa_version: Preprint
publication: Physical Review E
publication_identifier:
  eissn:
  - 2470-0053
  issn:
  - 2470-0045
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effect of curvature on the diffusion of colloidal bananas
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 107
year: '2023'
...