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Dynamics of anisotropic colloidal systems : What to choose, DLS, DDM or XPCS?

Kamal, Md Arif LU ; Brizioli, Matteo ; Zinn, Thomas ; Narayanan, Theyencheri ; Cerbino, Roberto ; Giavazzi, Fabio and Pal, Antara LU (2024) In Journal of Colloid and Interface Science 660. p.314-320
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... (More)

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.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Colloid and Interface Science
volume
660
pages
7 pages
publisher
Elsevier
external identifiers
  • pmid:38244498
  • scopus:85182733574
ISSN
0021-9797
DOI
10.1016/j.jcis.2023.12.163
language
English
LU publication?
yes
id
d0134fb4-f9c0-4d98-a5e9-283a71f0ecc5
date added to LUP
2024-02-19 15:41:45
date last changed
2024-04-19 17:45:48
@article{d0134fb4-f9c0-4d98-a5e9-283a71f0ecc5,
  abstract     = {{<p>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.</p>}},
  author       = {{Kamal, Md Arif and Brizioli, Matteo and Zinn, Thomas and Narayanan, Theyencheri and Cerbino, Roberto and Giavazzi, Fabio and Pal, Antara}},
  issn         = {{0021-9797}},
  language     = {{eng}},
  month        = {{04}},
  pages        = {{314--320}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Colloid and Interface Science}},
  title        = {{Dynamics of anisotropic colloidal systems : What to choose, DLS, DDM or XPCS?}},
  url          = {{http://dx.doi.org/10.1016/j.jcis.2023.12.163}},
  doi          = {{10.1016/j.jcis.2023.12.163}},
  volume       = {{660}},
  year         = {{2024}},
}