Confinement suppresses instabilities in particle-laden droplets

Abstract Tiny concentrations of suspended particles may alter the behavior of an evaporating droplet remarkably, leading to partially viscous and partially elastic dynamical characteristics. This, in turn, may lead to some striking mechanical instabilities, such as buckling and rupture. Here, we rep...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Lalit Bansal, Saptarshi Basu, Suman Chakraborty
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5196ae07da0d460e968d65846dd80037
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5196ae07da0d460e968d65846dd80037
record_format	dspace
spelling	oai:doaj.org-article:5196ae07da0d460e968d65846dd800372021-12-02T12:32:37ZConfinement suppresses instabilities in particle-laden droplets10.1038/s41598-017-08126-32045-2322https://doaj.org/article/5196ae07da0d460e968d65846dd800372017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08126-3https://doaj.org/toc/2045-2322Abstract Tiny concentrations of suspended particles may alter the behavior of an evaporating droplet remarkably, leading to partially viscous and partially elastic dynamical characteristics. This, in turn, may lead to some striking mechanical instabilities, such as buckling and rupture. Here, we report certain non-trivial implications of the consequent morpho-dynamics (macro to nano scales), when such an evaporating droplet is encapsulated in a confined environment. Compared to unconfined scenario, we report non-intuitive suppression of rupturing beyond a critical confinement. We attribute this to confinement-induced dramatic alteration in the evaporating flux, leading to distinctive spatio-temporal characteristics of the internal flow leading to preferential particle transport and subsequent morphological transitions. We present a regime map quantifying buckling-non buckling pathways. These results may turn out to be of profound importance towards achieving desired morphological features of a colloidal droplet, by aptly tuning the confinement space, initial particle concentration, as well as the initial droplet volume.Lalit BansalSaptarshi BasuSuman ChakrabortyNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Lalit Bansal Saptarshi Basu Suman Chakraborty Confinement suppresses instabilities in particle-laden droplets
description	Abstract Tiny concentrations of suspended particles may alter the behavior of an evaporating droplet remarkably, leading to partially viscous and partially elastic dynamical characteristics. This, in turn, may lead to some striking mechanical instabilities, such as buckling and rupture. Here, we report certain non-trivial implications of the consequent morpho-dynamics (macro to nano scales), when such an evaporating droplet is encapsulated in a confined environment. Compared to unconfined scenario, we report non-intuitive suppression of rupturing beyond a critical confinement. We attribute this to confinement-induced dramatic alteration in the evaporating flux, leading to distinctive spatio-temporal characteristics of the internal flow leading to preferential particle transport and subsequent morphological transitions. We present a regime map quantifying buckling-non buckling pathways. These results may turn out to be of profound importance towards achieving desired morphological features of a colloidal droplet, by aptly tuning the confinement space, initial particle concentration, as well as the initial droplet volume.
format	article
author	Lalit Bansal Saptarshi Basu Suman Chakraborty
author_facet	Lalit Bansal Saptarshi Basu Suman Chakraborty
author_sort	Lalit Bansal
title	Confinement suppresses instabilities in particle-laden droplets
title_short	Confinement suppresses instabilities in particle-laden droplets
title_full	Confinement suppresses instabilities in particle-laden droplets
title_fullStr	Confinement suppresses instabilities in particle-laden droplets
title_full_unstemmed	Confinement suppresses instabilities in particle-laden droplets
title_sort	confinement suppresses instabilities in particle-laden droplets
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/5196ae07da0d460e968d65846dd80037
work_keys_str_mv	AT lalitbansal confinementsuppressesinstabilitiesinparticleladendroplets AT saptarshibasu confinementsuppressesinstabilitiesinparticleladendroplets AT sumanchakraborty confinementsuppressesinstabilitiesinparticleladendroplets
_version_	1718394034816286720

Confinement suppresses instabilities in particle-laden droplets

Ejemplares similares