UV-Embossed Inorganic–Organic Hybrid Nanopillars for Bioapplications
Authors: Aura, S.; Jokinen, V.; Sainiemi, L.; Baumann, M.; Franssila, S.
Source: Journal of Nanoscience and Nanotechnology, Volume 9, Number 11, November 2009 , pp. 6710-6715(6)
Publisher: American Scientific Publishers
Abstract:We demonstrate rapid and maskless wafer-scale fabrication of inorganic–organic hybrid nanopillars for microfluidic and mass spectrometric applications. The nanopillar features are transferred from a black silicon master to the hybrid material by UV-embossing with a composite stamp made of polydimethylsiloxane (PDMS)/hard-PDMS (h-PDMS), which allows accurate transfer of structures in the 100 nm size range. The nanopillar embossing process is extremely simple and well suited for cheap wafer-scale prototyping, as the process does not require expensive masks or stamps and even works with a standard office lamp as the exposure source. The pillars can also be fabricated on a wide variety of substrates because the hybrid material is solvent-free. The use of the hybrid nanopillars as a hydrophobic/philic platforms and as sample plates in surface assisted laser desorption ionization mass spectrometry is demonstrated.
Document Type: Research Article
Publication date: November 1, 2009
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