期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 306, 期 2, 页码 379-385出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2006.10.077
关键词
capillary burst valve; microfluidics; contact angle; interface; wetting; surface tension
资金
- National Research Foundation of Korea [과C6A1803] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The capillary burst microvalve offers an attractive means to regulate microliquid flow owing to its simple structure and operation process. However, there existed no rigorous theoretical work to elucidate how the valve works and consequently to predict the valve-bursting condition. Therefore, here we report the theoretical investigation of how the capillary burst valve can stop the advancing liquid meniscus and when it bursts. We confirm our theory with experiments using a centrifugal microfluidic valve system fabricated by soft lithography. (c) 2006 Elsevier Inc. All rights reserved.
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