Oil droplet generation in PDMS microchannel using an amphiphilic continuous phase

Title
Oil droplet generation in PDMS microchannel using an amphiphilic continuous phase
Authors
채수경이창하이수현김태송강지윤
Keywords
droplet; micofluidics; amphiphillic
Issue Date
2009-05
Publisher
Lab on a chip
Citation
VOL 9, NO 13, 1957-1961
Abstract
This paper reports an amphiphilic solution can be used as a new continuous phase to generate double droplet emulsions (water/oil/IPA) with neither surface treatment nor surfactant in PDMS microfluidic chip. The affinity of various amphiphilic solutions in the microchannel was influenced by the polarity ratio and the size of molecules. The polarity ratio of isopropyl alcohol (IPA) was closest to that of the recovered PDMS surface and the chain length of IPA was also suitable for high affinity. IPA showed the highest affinity for the recovered PDMS and was selected as the continuous phase to form oil droplets in a PDMS microchannel. With this new continuous phase solution, IPA, we could successfully generate not only oil droplets but also double emulsions in the PDMS microfluidic chips.
URI
http://pubs.kist.re.kr/handle/201004/35692
ISSN
1473-0197
Appears in Collections:
KIST Publication > Article
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