期刊
BIOCHIP JOURNAL
卷 7, 期 4, 页码 361-366出版社
KOREAN BIOCHIP SOCIETY-KBCS
DOI: 10.1007/s13206-013-7407-1
关键词
Passive micromixer; Surface tension; Convection; Marangoni effect; Autonomous operation
资金
- National Research Foundation of Korea (NRF)
- Korean government (MEST) [2013046403]
- United States National Library of Medicine [5T15 LM007359]
This article describes a passive micromixer that utilizes an air-liquid interface and surface tension effects to enhance fluid mixing via convection and Marangoni effects. Performance of the microfluidic component is tested within a passive-pumping-based device that consists of three microchannels connected in succession using passive micro-mixers. Mixing was quantified at 5 key points along the length of the device using microscope images of patterned streams of Alexa 488 fluorescent-dyed water and pure DI water flowing through the device. The passive micro-mixer mixed fluid 15-20 times more effectively than diffusion between laminar flow streams alone and is a novel micro-mixer embodiment that provides an additional strategy for removing external components from microscale devices for simpler, autonomous operation.
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