A solvent vapor treatment was applied to femtosecond-laser-ablated microchannels in PMMA to selectively restore the original hydrophilic wetting behavior of the pristine surface. The hydrophobic surface of the microchannels from the submicron porosity induced by ablation becomes smoother and more transparent after the treatment. This simple and low-cost method, together with suitable masking, can produce wettability patterns that may be exploited to develop passive microfluidic elements such as valves and mixers.

Solvent vapor tretament controls surface wettability in PMMA femtosecond-laser ablated microchannels

DE MARCO, CARMELA;EATON, SHANE MICHAEL ADLER;MARTINEZ VAZQUEZ, REBECA;CERULLO, GIULIO NICOLA;LEVI, MARINELLA;TURRI, STEFANO;OSELLAME, ROBERTO
2013-01-01

Abstract

A solvent vapor treatment was applied to femtosecond-laser-ablated microchannels in PMMA to selectively restore the original hydrophilic wetting behavior of the pristine surface. The hydrophobic surface of the microchannels from the submicron porosity induced by ablation becomes smoother and more transparent after the treatment. This simple and low-cost method, together with suitable masking, can produce wettability patterns that may be exploited to develop passive microfluidic elements such as valves and mixers.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/764905
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