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Article: Microfluidic fabrication of water-in-water (w/w) jets and emulsions

TitleMicrofluidic fabrication of water-in-water (w/w) jets and emulsions
Authors
Issue Date2012
PublisherAmerican Institute of Physics. The Journal's web site is located at http://bmf.aip.org
Citation
Biomicrofluidics, 2012, v. 6 n. 1 How to Cite?
AbstractWe demonstrate the generation of water-in-water (w/w) jets and emulsions by combining droplet microfluidics and aqueous two-phase systems (ATPS). The application of ATPS in microfluidics has been hampered by the low interfacial tension between typical aqueous phases. The low tension makes it difficult to form w/w droplets with conventional droplet microfluidic approaches. We show that by mechanically perturbing a stable w/w jet, w/w emulsions can be prepared in a controlled and reproducible fashion. We also characterize the encapsulation ability of w/w emulsions and demonstrate that their encapsulation efficiency can be significantly enhanced by inducing formation of precipitates and gels at the w/w interfaces. Our work suggests a biologically and environmentally friendly platform for droplet microfluidics and establishes the potential of w/w droplet microfluidics for encapsulation-related applications. © 2012 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/157185
ISSN
2015 Impact Factor: 2.708
2015 SCImago Journal Rankings: 0.794
ISI Accession Number ID
Funding AgencyGrant Number
NSFDMR-1006546
Harvard MRSECDMR-0820484
University of Hong Kong201101159009
Funding Information:

This work was supported by the NSF (DMR-1006546), the Harvard MRSEC (DMR-0820484), and the Seed Funding Programme for Basic Research from the University of Hong Kong (201101159009).

References

 

DC FieldValueLanguage
dc.contributor.authorShum, HCen_US
dc.contributor.authorVarnell, Jen_US
dc.contributor.authorWeitz, DAen_US
dc.date.accessioned2012-08-08T08:45:42Z-
dc.date.available2012-08-08T08:45:42Z-
dc.date.issued2012en_US
dc.identifier.citationBiomicrofluidics, 2012, v. 6 n. 1en_US
dc.identifier.issn1932-1058en_US
dc.identifier.urihttp://hdl.handle.net/10722/157185-
dc.description.abstractWe demonstrate the generation of water-in-water (w/w) jets and emulsions by combining droplet microfluidics and aqueous two-phase systems (ATPS). The application of ATPS in microfluidics has been hampered by the low interfacial tension between typical aqueous phases. The low tension makes it difficult to form w/w droplets with conventional droplet microfluidic approaches. We show that by mechanically perturbing a stable w/w jet, w/w emulsions can be prepared in a controlled and reproducible fashion. We also characterize the encapsulation ability of w/w emulsions and demonstrate that their encapsulation efficiency can be significantly enhanced by inducing formation of precipitates and gels at the w/w interfaces. Our work suggests a biologically and environmentally friendly platform for droplet microfluidics and establishes the potential of w/w droplet microfluidics for encapsulation-related applications. © 2012 American Institute of Physics.en_US
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://bmf.aip.orgen_US
dc.relation.ispartofBiomicrofluidicsen_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleMicrofluidic fabrication of water-in-water (w/w) jets and emulsionsen_US
dc.typeArticleen_US
dc.identifier.emailCheung Shum, H:ashum@hku.hken_US
dc.identifier.authorityCheung Shum, H=rp01439en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1063/1.3670365en_US
dc.identifier.scopuseid_2-s2.0-84859312980en_US
dc.identifier.hkuros207259-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84859312980&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume6en_US
dc.identifier.issue1en_US
dc.identifier.eissn1932-1058-
dc.identifier.isiWOS:000302301000010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridCheung Shum, H=23976513800en_US
dc.identifier.scopusauthoridVarnell, J=55170485700en_US
dc.identifier.scopusauthoridWeitz, DA=55169969000en_US

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