Drying-mediated patterns in colloid-polymer suspensions

Abstract Drying-mediated patterning of colloidal particles is a physical phenomenon that must be understood in inkjet printing technology to obtain crack-free uniform colloidal films. Here we experimentally study the drying-mediated patterns of a model colloid-polymer suspension and specifically obs...

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Autores principales:	Seul-a Ryu, Jin Young Kim, So Youn Kim, Byung Mook Weon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0f7387313102473d9944ed6b279baa85
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spelling	oai:doaj.org-article:0f7387313102473d9944ed6b279baa852021-12-02T11:40:13ZDrying-mediated patterns in colloid-polymer suspensions10.1038/s41598-017-00932-z2045-2322https://doaj.org/article/0f7387313102473d9944ed6b279baa852017-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-00932-zhttps://doaj.org/toc/2045-2322Abstract Drying-mediated patterning of colloidal particles is a physical phenomenon that must be understood in inkjet printing technology to obtain crack-free uniform colloidal films. Here we experimentally study the drying-mediated patterns of a model colloid-polymer suspension and specifically observe how the deposit pattern appears after droplet evaporation by varying particle size and polymer concentration. We find that at a high polymer concentration, the ring-like pattern appears in suspensions with large colloids, contrary to suppression of ring formation in suspensions with small colloids thanks to colloid-polymer interactions. We attribute this unexpected reversal behavior to hydrodynamics and size dependence of colloid-polymer interactions. This finding would be very useful in developing control of drying-mediated self-assembly to produce crack-free uniform patterns from colloidal fluids.Seul-a RyuJin Young KimSo Youn KimByung Mook WeonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Seul-a Ryu Jin Young Kim So Youn Kim Byung Mook Weon Drying-mediated patterns in colloid-polymer suspensions
description	Abstract Drying-mediated patterning of colloidal particles is a physical phenomenon that must be understood in inkjet printing technology to obtain crack-free uniform colloidal films. Here we experimentally study the drying-mediated patterns of a model colloid-polymer suspension and specifically observe how the deposit pattern appears after droplet evaporation by varying particle size and polymer concentration. We find that at a high polymer concentration, the ring-like pattern appears in suspensions with large colloids, contrary to suppression of ring formation in suspensions with small colloids thanks to colloid-polymer interactions. We attribute this unexpected reversal behavior to hydrodynamics and size dependence of colloid-polymer interactions. This finding would be very useful in developing control of drying-mediated self-assembly to produce crack-free uniform patterns from colloidal fluids.
format	article
author	Seul-a Ryu Jin Young Kim So Youn Kim Byung Mook Weon
author_facet	Seul-a Ryu Jin Young Kim So Youn Kim Byung Mook Weon
author_sort	Seul-a Ryu
title	Drying-mediated patterns in colloid-polymer suspensions
title_short	Drying-mediated patterns in colloid-polymer suspensions
title_full	Drying-mediated patterns in colloid-polymer suspensions
title_fullStr	Drying-mediated patterns in colloid-polymer suspensions
title_full_unstemmed	Drying-mediated patterns in colloid-polymer suspensions
title_sort	drying-mediated patterns in colloid-polymer suspensions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0f7387313102473d9944ed6b279baa85
work_keys_str_mv	AT seularyu dryingmediatedpatternsincolloidpolymersuspensions AT jinyoungkim dryingmediatedpatternsincolloidpolymersuspensions AT soyounkim dryingmediatedpatternsincolloidpolymersuspensions AT byungmookweon dryingmediatedpatternsincolloidpolymersuspensions
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Drying-mediated patterns in colloid-polymer suspensions

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