Work

Rotational Diffusion of Spherical Colloids Close to a Wall

Year: 2012

Type: article

Abstract: There is currently no experimental technique available to probe spatially resolved rotational diffusion of nanoparticles in the vicinity of a wall. We present the first experimental study of rotational diffusion of small spherical colloids, using dynamic evanescent wave scattering. A setup is used where the wave vector components parallel and perpendicular to the wall can be varied independently, and an expression is derived for the first cumulant of the intensity correlation function in VH evanescent wave geometry for optically anisotropic spheres. The experimental results are in agreement with theoretical predictions that take particle-wall hydrodynamic interactions into account.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.109.098305

Authors: S. A. Rogers, M. Lisicki, B. Cichocki, J. K. G. Dhont, P. R. Lang

Institutions: Forschungszentrum Jülich, University of Warsaw

Language: English

Topic: Material Dynamics and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2065409833

FWCI: 1.173

Cites: 27

Cited by: 40

Related to: 10