This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.109.098305 in citations.
Please use the identifier: http://hdl.handle.net/2128/7592 in citations.
Rotational Diffusion of Spherical Colloids Close to a Wall
Rotational Diffusion of Spherical Colloids Close to a Wall
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 w...
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Personal Name(s): | Rogers, S.A. |
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Lisicki, M. / Cichocki, B. / Dhont, J.K.G. / Lang, P.R. | |
Contributing Institute: |
Weiche Materie; ICS-3 |
Published in: | Physical review letters, 109 (2012) S. 098305 |
Imprint: |
College Park, Md.
APS
2012
|
Physical Description: |
098305 |
DOI: |
10.1103/PhysRevLett.109.098305 |
Document Type: |
Journal Article |
Research Program: |
Toolbox for Directed and Controlled Self-Assembly of nano-Colloids BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |
Series Title: |
Physical Review Letters
109 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7592 in citations.
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. |