Journal
LAB ON A CHIP
Volume 10, Issue 8, Pages 1057-1060Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b923377f
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Funding
- Air Force Office of Scientific Research [FA95500910125]
- National Science Foundation [ECCS-0925712]
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We demonstrate the use of high-speed, multiphoton absorption polymerization ( MAP) for the fabrication of large-area microfluidic master structures. High-speed fabrication in SU8 without laser-induced damage is made possible by the use of a novel photoacid generator with a high two-photon-absorption cross-section. Master structures fabricated with MAP can be used to produce polydimethylsiloxane microchannels with high aspect ratios and/or arbitrary cross-sections. Microchannels with different cross-sections and heights can be combined readily in a single device. This fabrication technique significantly increases the diversity of channel architectures available for microfluidic devices.
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