Structural formation of oil-in-water (O/W) and water-in-oil-in-water (W/O/W) droplets in PDMS device using protrusion channel without hydrophilic surface treatment

Dong Hyun Yoon*, Daiki Tanaka, Tetsushi Sekiguchi, Shuichi Shoji

*この研究の対応する著者

研究成果: Article査読

10 被引用数 (Scopus)

抄録

This paper presents a simple method of droplet formation using liquids that easily wet polydimethylsiloxane (PDMS) surfaces without any surface treatment. Using only structural features and uniform flow focusing, Oil-in-Water (O/W) and Water-in-Oil-in-Water (W/O/W) droplets were formed in the full PDMS structure. Extrusion channel and three-dimensional flow focusing resulted in effective fluidic conditions for droplet formation and the droplet size could be precisely controlled by controlling the flow rate of each phase. The proposed structure can be utilized as an important element for droplet based research, as well as a droplet generator.

本文言語English
論文番号468
ジャーナルMicromachines
9
9
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 機械工学
  • 電子工学および電気工学

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