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Conference Paper: Electro-induced manipulations of liquid marbles for chemical reactions

TitleElectro-induced manipulations of liquid marbles for chemical reactions
Authors
Issue Date2015
PublisherAmerican Physical Society.
Citation
The 68th Annual Meeting of the APS Division of Fluid Dynamics, Boston, MA, 22-24 November 2015. In Bulletin of the American Physical Society, 2015, v. 60 n. 21, Abstract ID: BAPS.2015.DFD.G32.6 How to Cite?
AbstractLiquid marbles, liquid droplets coated by non-wetting particles, have been well demonstrated as a promising template for various droplet-based applications, in particular for chemical reactions. In these applications, controlled manipulations on liquid marbles, including coalescence and mixing, are highly demanded but yet rarely investigated. In this work, we study the coalescence and mixing of liquid marbles controlled by an electric field. We found that a sufficiently large applied voltage can cause the coalescence of two or multiple marbles arranged in a chain. This critical voltage, leading to the consequent coalescence, increases with the number of the liquid marbles. In addition, the imposed electric stress can induce convective liquid flow within the different liquid marbles, resulting in rapid and efficient mixing. The mixing efficiency can be conveniently tuned through varying the applied voltage. Our approach based on electro-assisted manipulations of liquids marbles represents a robust and feasible template for chemical or biomedical reactions involving multiple reagents and steps. We have demonstrated its potential by performing a chemiluminescence to detect the hydrogen peroxide encapsulated in liquid marbles.
Persistent Identifierhttp://hdl.handle.net/10722/257496

 

DC FieldValueLanguage
dc.contributor.authorLiu, Z-
dc.contributor.authorFu, X-
dc.contributor.authorBinks, BP-
dc.contributor.authorShum, HC-
dc.date.accessioned2018-08-06T08:09:20Z-
dc.date.available2018-08-06T08:09:20Z-
dc.date.issued2015-
dc.identifier.citationThe 68th Annual Meeting of the APS Division of Fluid Dynamics, Boston, MA, 22-24 November 2015. In Bulletin of the American Physical Society, 2015, v. 60 n. 21, Abstract ID: BAPS.2015.DFD.G32.6-
dc.identifier.urihttp://hdl.handle.net/10722/257496-
dc.description.abstractLiquid marbles, liquid droplets coated by non-wetting particles, have been well demonstrated as a promising template for various droplet-based applications, in particular for chemical reactions. In these applications, controlled manipulations on liquid marbles, including coalescence and mixing, are highly demanded but yet rarely investigated. In this work, we study the coalescence and mixing of liquid marbles controlled by an electric field. We found that a sufficiently large applied voltage can cause the coalescence of two or multiple marbles arranged in a chain. This critical voltage, leading to the consequent coalescence, increases with the number of the liquid marbles. In addition, the imposed electric stress can induce convective liquid flow within the different liquid marbles, resulting in rapid and efficient mixing. The mixing efficiency can be conveniently tuned through varying the applied voltage. Our approach based on electro-assisted manipulations of liquids marbles represents a robust and feasible template for chemical or biomedical reactions involving multiple reagents and steps. We have demonstrated its potential by performing a chemiluminescence to detect the hydrogen peroxide encapsulated in liquid marbles.-
dc.languageeng-
dc.publisherAmerican Physical Society.-
dc.relation.ispartofBulletin of the American Physical Society-
dc.rightsBulletin of the American Physical Society. Copyright © American Physical Society.-
dc.titleElectro-induced manipulations of liquid marbles for chemical reactions-
dc.typeConference_Paper-
dc.identifier.emailLiu, Z: zliu89@hku.hk-
dc.identifier.emailShum, HC: ashum@hku.hk-
dc.identifier.authorityShum, HC=rp01439-
dc.identifier.hkuros268649-
dc.identifier.volume60-
dc.identifier.issue21-
dc.publisher.placeBoston, MA-

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