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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201700819
|2 doi
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|a pubmed25n0912.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Nguyen, Truc A
|e verfasserin
|4 aut
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| 245 |
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|a Switching Colloidal Superstructures by Critical Casimir Forces
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|c 2017
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 18.07.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Recent breakthroughs in colloidal synthesis promise the bottom-up assembly of superstructures on nano- and micrometer length scales, offering molecular analogues on the colloidal scale. However, a structural control similar to that in supramolecular chemistry remains very challenging. Here, colloidal superstructures are built and controlled using critical Casimir forces on patchy colloidal particles. These solvent-mediated forces offer direct analogues of molecular bonds, allowing patch-to-patch binding with exquisite temperature control of bond strength and stiffness. Particles with two patches are shown to form linear chains undergoing morphological changes with temperature, resembling a polymer collapse under poor-solvent conditions. This reversible temperature switching carries over to particles with higher valency, exhibiting a variety of patch-to-patch bonded structures. Using Monte Carlo simulations, it is shown that the collapse results from the growing interaction range favoring close-packed configurations. These results offer new opportunities for the active control of complex structures at the nano and micrometer scale, paving the way to novel temperature-switchable materials
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|a Journal Article
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|a colloidal assembly
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4 |
|a critical Casimir effect
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|a nanoassembly
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4 |
|a patchy colloids
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1 |
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|a Newton, Arthur
|e verfasserin
|4 aut
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1 |
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|a Veen, Sandra J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kraft, Daniela J
|e verfasserin
|4 aut
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1 |
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|a Bolhuis, Peter G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schall, Peter
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 34 vom: 01. Sept.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:29
|g year:2017
|g number:34
|g day:01
|g month:09
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|u http://dx.doi.org/10.1002/adma.201700819
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