1. Open Access Kent State
  2. Brownian Motion of Boomerang Colloidal Particles
Author(s)
Abstract

We investigate the Brownian motion of boomerang colloidal particles confined between two glass plates. Our experimental observations show that the mean displacements are biased towards the center of hydrodynamic stress (CoH), and that the mean-square displacements exhibit a crossover from short-time faster to long-time slower diffusion with the short-time diffusion coefficients dependent on the points used for tracking. A model based on Langevin theory elucidates that these behaviors are ascribed to the superposition of two diffusive modes: the ellipsoidal motion of the CoH and the rotational motion of the tracking point with respect to the CoH.
Format
Article
Identifier(s)
10.1103/physrevlett.111.160603
Publication Date
2013-10-18
Publication Title
Physical Review Letters
Publisher
American Physical Society (APS)
Volume
111
Issue
16
First Page
160603
Rights
http://rightsstatements.org/vocab/InC/1.0/
License
http://link.aps.org/licenses/aps-default-license
Community
Advanced Materials and Liquid Crystal Institute
Department of Physics
PDF URL
https://link.aps.org/doi/10.1103/PhysRevLett.111.160603
Permalink https://oaks.kent.edu/article/brownian-motion-boomerang-colloidal-particles
Chakrabarty, A., Konya, A., Wang, F., Selinger, J., Sun, K., & Wei, Q.-H. (2013). Brownian Motion of Boomerang Colloidal Particles (1–). Physical Review Letters. https://doi.org/10.1103/physrevlett.111.160603
Chakrabarty, Ayan, Andrew Konya, Feng Wang, Jonathan Selinger, Kai Sun, and Qi-Huo Wei. 2013. “Brownian Motion of Boomerang Colloidal Particles”. Physical Review Letters. https://doi.org/10.1103/physrevlett.111.160603.
Chakrabarty, Ayan, et al. Brownian Motion of Boomerang Colloidal Particles. Physical Review Letters, 18 Oct. 2013, https://doi.org/10.1103/physrevlett.111.160603.