title: How the capillary burst microvalve works.
abstract: 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.
authors.affiliation: Berkeley Sensor and Actuator Center, Department of Bioengineering, University of California, Berkeley, CA 94720, USA.
authors.forename: Hansang
authors.initials: H
authors.lastname: Cho
authors.forename: Ho-Young
authors.initials: HY
authors.lastname: Kim
authors.forename: Ji Yoon
authors.initials: JY
authors.lastname: Kang
authors.forename: Tae Song
authors.initials: TS
authors.lastname: Kim
mesh_terms: D044085:Microfluidics; D008872:Microwaves; D008962:Models, Theoretical