Abstract

Gratings are written holographically with low power (10mW/cm2) 244  nm UV light on thin films of polybutadiene rubber polymer. The increase of hydrophilicity–wettability of polybutadiene films is measured over UV-exposed regions. Sequential fabrication of two orthogonal gratings results in hydrophilic microarrays having applications as functionalized substrates for immobilizing biomolecules. This is demonstrated by immobilizing a phospholipid in a microarray pattern.

© 2007 Optical Society of America

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