Jamming and overpacking fuzzy microgels: Deformation, interpenetration, and compression
Conley, Gaurasundar M. ; Aebischer, Philippe ; Nöjd, Sofi LU ; Schurtenberger, Peter LU
and Scheffold, Frank
(2017)
In Science Advances
3(10).
- Abstract
- Tuning the solubility of fuzzy polymer microgels by external triggers, such as temperature or pH, provides a unique mechanism for controlling the porosity and size of colloidal particles on the nanoscale. As a consequence, these smart microgel particles are being considered for applications ranging from viscosity modifiers and sensing to drug delivery and as models for the glass and the jamming transition. Despite their widespread use, little is known about how these soft particles adapt their shape and size under strong mechanical compression. We use a combination of precise labeling protocols and two-color superresolution microscopy to unravel the behavior of tracer microgels inside densely packed soft solids. We find that... (More)
- Tuning the solubility of fuzzy polymer microgels by external triggers, such as temperature or pH, provides a unique mechanism for controlling the porosity and size of colloidal particles on the nanoscale. As a consequence, these smart microgel particles are being considered for applications ranging from viscosity modifiers and sensing to drug delivery and as models for the glass and the jamming transition. Despite their widespread use, little is known about how these soft particles adapt their shape and size under strong mechanical compression. We use a combination of precise labeling protocols and two-color superresolution microscopy to unravel the behavior of tracer microgels inside densely packed soft solids. We find that interpenetration and shape deformation are dominant until, in the highly overpacked state, this mechanism saturates and the only remaining way to further densify the system is by isotropic compression. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/ed2967bb-0295-4095-9b56-9c296aa9eedc
- author
- Conley, Gaurasundar M.
; Aebischer, Philippe
; Nöjd, Sofi
LU
; Schurtenberger, Peter
LU
and Scheffold, Frank
- organization
- publishing date
- 2017-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science Advances
- volume
- 3
- issue
- 10
- article number
- e1700969
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- pmid:29062888
- wos:000417998700018
- scopus:85040946480
- ISSN
- 2375-2548
- DOI
- 10.1126/sciadv.1700969
- language
- English
- LU publication?
- yes
- id
- ed2967bb-0295-4095-9b56-9c296aa9eedc
- date added to LUP
- 2017-11-28 11:39:20
- date last changed
- 2023-11-17 10:27:41
@article{ed2967bb-0295-4095-9b56-9c296aa9eedc,
abstract = {{Tuning the solubility of fuzzy polymer microgels by external triggers, such as temperature or pH, provides a unique mechanism for controlling the porosity and size of colloidal particles on the nanoscale. As a consequence, these smart microgel particles are being considered for applications ranging from viscosity modifiers and sensing to drug delivery and as models for the glass and the jamming transition. Despite their widespread use, little is known about how these soft particles adapt their shape and size under strong mechanical compression. We use a combination of precise labeling protocols and two-color superresolution microscopy to unravel the behavior of tracer microgels inside densely packed soft solids. We find that interpenetration and shape deformation are dominant until, in the highly overpacked state, this mechanism saturates and the only remaining way to further densify the system is by isotropic compression.}},
author = {{Conley, Gaurasundar M. and Aebischer, Philippe and Nöjd, Sofi and Schurtenberger, Peter and Scheffold, Frank}},
issn = {{2375-2548}},
language = {{eng}},
month = {{10}},
number = {{10}},
publisher = {{American Association for the Advancement of Science (AAAS)}},
series = {{Science Advances}},
title = {{Jamming and overpacking fuzzy microgels: Deformation, interpenetration, and compression}},
url = {{http://dx.doi.org/10.1126/sciadv.1700969}},
doi = {{10.1126/sciadv.1700969}},
volume = {{3}},
year = {{2017}},
}