Speckle-visibility spectroscopy of depolarized dynamic light scattering

Bossert, David; Natterodt, Jens; Urban, Dominic A.; Weder, Christoph; Petri-Fink, Alke

doi:10.1021/acs.jpcb.7b04971

Back

Journal article

+ 1 other files

Speckle-visibility spectroscopy of depolarized dynamic light scattering

Bossert, David Adolphe Merkle Institute, University of Fribourg, Switzerland
Natterodt, Jens Adolphe Merkle Institute, University of Fribourg, Switzerland
Urban, Dominic A. Adolphe Merkle Institute, University of Fribourg, Switzerland
Weder, Christoph Adolphe Merkle Institute, University of Fribourg, Switzerland
Petri-Fink, Alke Adolphe Merkle Institute, University of Fribourg, Switzerland - Chemistry Department, University of Fribourg, Switzerland

24.08.2017

Published in:

The Journal of Physical Chemistry B. - 2017, vol. 121, no. 33, p. 7999–8007

English We show that the statistical analysis of photon counts in depolarized dynamic light scattering experiments allows for the accurate characterization of the rotational Brownian dynamics of particles. Unlike photon correlation spectroscopy, the technique is accurate even at low temporal resolution and enables discontinuous data acquisition, which offers several advantages. To demonstrate the usefulness of the method, we present a case study in which we analyze aqueous suspensions of tunicate cellulose nanocrystals and silica particles, and discuss aspects that are specific to particle sizing.

Faculty

Faculté des sciences et de médecine

Department

Département de Chimie

Language