Structure and anisotropic dynamics of stimuli responsive colloidal ellipsoids at the nearest neighbor length scale
Pal, Antara LU ; Kamal, Md Arif LU and Schurtenberger, Peter LU
(2022)
In Journal of Colloid and Interface Science
621.
p.352-359
- Abstract
Stimuli-responsive self-assembly of (an) isotropic colloids has resulted in a plethora of self-assembled structures with potential applications in fabricating smart materials. A lack of detailed understanding of the interplay between these self-assembled structures and the resulting dynamics has often impeded the exploitation of their full potential. Herein, we have unveiled the relationship between the field-driven self-assembled structures and the corresponding collective dynamics at the nearest neighbor length scale using X-ray photon correlation spectroscopy and magnetic colloidal ellipsoids. We demonstrate that the effective long-time collective diffusion coefficient, Deff(q), scales with the inverse of the scattered... (More)
Stimuli-responsive self-assembly of (an) isotropic colloids has resulted in a plethora of self-assembled structures with potential applications in fabricating smart materials. A lack of detailed understanding of the interplay between these self-assembled structures and the resulting dynamics has often impeded the exploitation of their full potential. Herein, we have unveiled the relationship between the field-driven self-assembled structures and the corresponding collective dynamics at the nearest neighbor length scale using X-ray photon correlation spectroscopy and magnetic colloidal ellipsoids. We demonstrate that the effective long-time collective diffusion coefficient, Deff(q), scales with the inverse of the scattered intensity for various stimuli-responsive self-assembled phases. At high-volume fraction, the system approaches a kinetically arrested state. The anisotropic slowdown of Deff(q) hints towards the formation of an oriented glass. Our approach opens new avenues for exploring the stimuli-responsive dynamics of strongly interacting colloidal systems with diverse shapes and properties.
(Less)
- author
- Pal, Antara
LU
; Kamal, Md Arif
LU
and Schurtenberger, Peter
LU
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Anisotropic dynamics, Liquid crystals, Magnetic anisotropic colloids, SASX, Self-assembly, XPCS
- in
- Journal of Colloid and Interface Science
- volume
- 621
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85129298728
- pmid:35468558
- ISSN
- 0021-9797
- DOI
- 10.1016/j.jcis.2022.04.063
- language
- English
- LU publication?
- yes
- id
- 7c5c08f0-184b-42d7-956e-9b8427a1ae29
- date added to LUP
- 2022-07-05 14:58:29
- date last changed
- 2024-06-25 22:23:32
@article{7c5c08f0-184b-42d7-956e-9b8427a1ae29,
abstract = {{<p>Stimuli-responsive self-assembly of (an) isotropic colloids has resulted in a plethora of self-assembled structures with potential applications in fabricating smart materials. A lack of detailed understanding of the interplay between these self-assembled structures and the resulting dynamics has often impeded the exploitation of their full potential. Herein, we have unveiled the relationship between the field-driven self-assembled structures and the corresponding collective dynamics at the nearest neighbor length scale using X-ray photon correlation spectroscopy and magnetic colloidal ellipsoids. We demonstrate that the effective long-time collective diffusion coefficient, D<sub>eff</sub>(q), scales with the inverse of the scattered intensity for various stimuli-responsive self-assembled phases. At high-volume fraction, the system approaches a kinetically arrested state. The anisotropic slowdown of D<sub>eff</sub>(q) hints towards the formation of an oriented glass. Our approach opens new avenues for exploring the stimuli-responsive dynamics of strongly interacting colloidal systems with diverse shapes and properties.</p>}},
author = {{Pal, Antara and Kamal, Md Arif and Schurtenberger, Peter}},
issn = {{0021-9797}},
keywords = {{Anisotropic dynamics; Liquid crystals; Magnetic anisotropic colloids; SASX; Self-assembly; XPCS}},
language = {{eng}},
pages = {{352--359}},
publisher = {{Elsevier}},
series = {{Journal of Colloid and Interface Science}},
title = {{Structure and anisotropic dynamics of stimuli responsive colloidal ellipsoids at the nearest neighbor length scale}},
url = {{http://dx.doi.org/10.1016/j.jcis.2022.04.063}},
doi = {{10.1016/j.jcis.2022.04.063}},
volume = {{621}},
year = {{2022}},
}