NDLI: An Active Flow Focusing Microfluidic Chip Utilizing Controllable Moving Walls for the Formation of Microdroplets in Liquids

Content Provider	IEEE Xplore Digital Library
Author	Chun-Hong Lee Suz-Kai Hsiung Gwo-Bin Lee
Copyright Year	2007
Description	Author affiliation: Dept. of Eng. Sci., National Cheng Kung Univ., Tainan (Chun-Hong Lee; Suz-Kai Hsiung; Gwo-Bin Lee)
Abstract	We have demonstrated a new microfluidic device for active sample flow focusing and the formation of micro-scale droplets in liquids application utilizing a novel controllable moving wall structure. The integration of two microfluidic components including the active microchannel width controller and micro chopper devices onto the chip device could be used to obtain the active flow focusing effect of the sample flow and micro-droplets formation. Three pneumatic side-chambers were placed next to the micro sample flow channel to construct the controllable moving wall structure, and the deformation of the moving wall structure can be used to control the sample stream width and cut the focused sample flow into micro-droplets. Experimental data show that the sample flow could be focused into smaller width and well-controlled micro-droplets with smaller diameter could be generated by utilizing low air pressure.
Starting Page	167
Ending Page	171
File Size	5238573
Page Count	5
File Format	PDF
ISBN	1424406102
DOI	10.1109/NEMS.2007.352254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-16
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microfluidics Microchannel Choppers Size control Liquids Control systems Micromechanical devices Fabrication Pressure control Systems engineering and theory MEMS active flow focusing emulsification moving wall micro chopper microfluidics
Content Type	Text
Resource Type	Article

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