S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Capillary kinetics of water in homogeneous, hydrophilic polymeric micro- to nanochannels
- Jeong, Hoon Eui; Kim, Pilnam; Kwak, Moon Kyoo; Seo, Chang Ho; Suh, Kahp Y.
- Issue Date
- Small 2007, 3, 778
- POLY ETHYLENE-GLYCOL; MICROFLUIDIC SYSTEMS; POLY(DIMETHYLSILOXANE); DEVICES; CHIP; FLOW; ELECTROPHORESIS; FLUORESCENCE
- Going with the flow: Homogenous, hydrophilic micro- to nanochannels of poly(ethylene glycol) (PEG) were fabricated by direct molding and UV-assisted bonding. By using these channels, the capillary kinetics of water was measured for potential pumpless, high-speed analytical tools. It was found that the capillary-filling speed inside a PEG channel (see fluorescence image) was two or three orders of magnitude higher than that inside a hydrophobic polydimethylsiloxane channel supported on a glass substrate.
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