L W Luo et al 2007 J. Micromech. Microeng. 17 N107 doi:10.1088/0960-1317/17/12/N02
L W Luo, C Y Teo, W L Ong, K C Tang, L F Cheow and L Yobas
Show affiliationsWe introduce a laser-patterned tape as a master for replica moulding microfluidics in poly(dimethylsiloxane) (PDMS). Normally, a laser is applied to scribe microchannels directly on poly(methyl methacrylate) (PMMA) substrates. This direct engraving usually offers a faster turn-around time than conventional soft lithography but generates rough surfaces which perform poorly under phase-contrast microscopy imaging. Using a laser-patterned tape as the master template for replica-moulding microfluidics in PDMS, we combine the rapid turn-around time of laser ablation and relatively smooth surface finish of soft lithography. Hence, microfluidic devices suitable for optical microscopy imaging can be obtained within several hours.
Issue 12 (December 2007)
Received 30 August 2007, in final form 4 October 2007
Published 31 October 2007
L W Luo et al 2007 J. Micromech. Microeng. 17 N107
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