Wall-less liquid pathways formed with three-dimensional microring arrays
- Authors
- Lee, W. C.; Heo, Y. J.; Takeuchi, S.
- Issue Date
- Sep-2012
- Publisher
- AMER INST PHYSICS
- Keywords
- Ring arrays; Immiscible liquids; Liquids; Liquid surface; Aspect ratio; Two-dimensional patterns; Microchannels; Liquid-solid interfaces; Solid wall; Microrings; Experimental studies; Phase interfaces; Microfluidics; Three dimensional
- Citation
- APPLIED PHYSICS LETTERS, v.101, no.11, pp.1 - 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 101
- Number
- 11
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/31849
- DOI
- 10.1063/1.4752720
- ISSN
- 0003-6951
- Abstract
- This paper describes a method to construct microfluidic pathways without physical walls wall-less microchannels. Compared to the previous wall-less microfluidics based on two-dimensional patterns, this method uses three-dimensional ring arrays and two immiscible liquids. The distant rings generate free-standing liquid pathways in order to minimize liquid surfaces contacted to solid walls. In the experimental study, we reduced the liquid-solid interface area per volume to 17.3% of that of the conventional microchannels with squared cross-sections. We envision that this aspect would be significant in micro/nano-fluidics, whose surface-area-to-volume ratio is extremely large. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4752720]
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