화학공학소재연구정보센터
Applied Surface Science, Vol.298, 125-129, 2014
Rapid and mask-less laser-processing technique for the fabrication of microstructures in polydimethylsiloxane
We report a rapid laser-based method for structuring polydimethylsiloxane (PDMS) on the micron-scale. This mask-less method uses a digital multi-mirror device as a spatial light modulator to produce a given spatial intensity pattern to create arbitrarily shaped structures via either ablation or multi-photon photo-polymerisation in a master substrate, which is subsequently used to cast the complementary patterns in PDMS. This patterned PDMS mould was then used for micro-contact printing of ink and biological molecules. (C) 2014 Elsevier B.V. All rights reserved.