On-Site Formation of Emulsions by Controlled Air Plugs

• Published in: Small (Weinheim an der Bergstrasse, Germany) Vol. 10; no. 4; pp. 758 - 765
• Main Authors: Huang, Xiaowen, Hui, Wenli, Hao, Chonglei, Yue, Wanqing, Yang, Mengsu, Cui, Yali, Wang, Zuankai
• Format: Journal Article
• Language: English
• Published: Germany Blackwell Publishing Ltd 01.02.2014; Wiley Subscription Services, Inc
• Subjects: Air; Arrays; Blood; Concentration gradient; droplet microfluidics; Droplets; Emulsions; Emulsions - chemistry; Flow control; Fluorescein-5-isothiocyanate - chemistry; Fluorescence; HL-60 Cells; Humans; immobilization; Microfluidics; Microfluidics - methods; Nanotechnology; Optical Phenomena; point of care diagnostics; valve; Valves; droplet microfluidics; point of care diagnostics; immobilization; valve

Air plugs are usually undesirable in microfluidic systems because of their detrimental effect on the system's stability and integrity. By controlling the wetting properties as well as the topographical geometry of the microchannel, it is reported herein that air plugs can be generated in pre‐de...