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Colloidal assembly and 3D shaping by dielectrophoretic confinement

Demirörs, Ahmet Faik and Crassous, Jerome LU (2017) In Soft Matter 13(17). p.3182-3189
Abstract

For decades, scientists and engineers have strived to design means of assembling colloids into ordered structures. By now, the literature is quite peppered with reports of colloidal assemblies. However, the available methods can assemble only a narrow range of structures or are applicable to specific types of colloids. There are still only few generic methods that would lead to arbitrary colloidal arrays or would shape colloidal assemblies into predesigned structures. Here, we first discuss in detail how to spatially control the assembly and crystallization of colloids through the balance of dielectrophoretic and dipolar forces. Furthermore, we demonstrate how to flexibly program and shape arrays of 3D microstructures that can be... (More)

For decades, scientists and engineers have strived to design means of assembling colloids into ordered structures. By now, the literature is quite peppered with reports of colloidal assemblies. However, the available methods can assemble only a narrow range of structures or are applicable to specific types of colloids. There are still only few generic methods that would lead to arbitrary colloidal arrays or would shape colloidal assemblies into predesigned structures. Here, we first discuss in detail how to spatially control the assembly and crystallization of colloids through the balance of dielectrophoretic and dipolar forces. Furthermore, we demonstrate how to flexibly program and shape arrays of 3D microstructures that can be permanently affixed by in situ UV polymerization and calcination by using two facing similar or distinct micro-fabricated electrodes.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Soft Matter
volume
13
issue
17
pages
8 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85021672717
  • wos:000400876600013
ISSN
1744-683X
DOI
10.1039/c7sm00422b
language
English
LU publication?
yes
id
0e6369b9-8569-48d2-a22b-be0456335c3a
date added to LUP
2017-07-19 15:03:08
date last changed
2017-09-18 11:38:45
@article{0e6369b9-8569-48d2-a22b-be0456335c3a,
  abstract     = {<p>For decades, scientists and engineers have strived to design means of assembling colloids into ordered structures. By now, the literature is quite peppered with reports of colloidal assemblies. However, the available methods can assemble only a narrow range of structures or are applicable to specific types of colloids. There are still only few generic methods that would lead to arbitrary colloidal arrays or would shape colloidal assemblies into predesigned structures. Here, we first discuss in detail how to spatially control the assembly and crystallization of colloids through the balance of dielectrophoretic and dipolar forces. Furthermore, we demonstrate how to flexibly program and shape arrays of 3D microstructures that can be permanently affixed by in situ UV polymerization and calcination by using two facing similar or distinct micro-fabricated electrodes.</p>},
  author       = {Demirörs, Ahmet Faik and Crassous, Jerome},
  issn         = {1744-683X},
  language     = {eng},
  number       = {17},
  pages        = {3182--3189},
  publisher    = {Royal Society of Chemistry},
  series       = {Soft Matter},
  title        = {Colloidal assembly and 3D shaping by dielectrophoretic confinement},
  url          = {http://dx.doi.org/10.1039/c7sm00422b},
  volume       = {13},
  year         = {2017},
}