Dynamics of anisotropic colloidal systems
- Author(s)
- Md. Arif Kamal, Matteo Brizioli, Thomas Zinn, Theyencheri Narayanan, Roberto Cerbino, Fabio Giavazzi, Antara Pal
- Abstract
Investigation of the dynamics of colloids in bulk can be hindered by issues such as multiple scattering and sample opacity. These challenges are exacerbated when dealing with inorganic materials. In this study, we employed a model system of Akaganeite colloidal rods to assess three leading dynamics measurement techniques: 3D-(depolarized) dynamic light scattering (3D-(D)DLS), polarized-differential dynamic microscopy (P-DDM), and x-ray photon correlation spectroscopy (XPCS). Our analysis revealed that the translational and rotational diffusion coefficients captured by these methods show a remarkable alignment. Additionally, by examining the q-ranges and maximum volume fractions for each approach, we offer insights into the best technique for investigating the dynamics of anisotropic systems at the colloidal scale.
- Organisation(s)
- Computational and Soft Matter Physics
- External organisation(s)
- Lund University, Universitá degli Studi di Milano, European Synchrotron Radiation Facility ESRF, Stockholm University, MAX IV Laboratory
- Journal
- Journal of Colloid and Interface Science
- Volume
- 660
- Pages
- 314-320
- No. of pages
- 7
- ISSN
- 0021-9797
- DOI
- https://doi.org/10.1016/j.jcis.2023.12.163
- Publication date
- 04-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103015 Condensed matter, 103021 Optics, 103018 Materials physics, 103029 Statistical physics
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Biomaterials, Colloid and Surface Chemistry
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/dynamics-of-anisotropic-colloidal-systems(c24626b5-404d-44bf-9aec-1b9acc5e8ca5).html