Microfabrication With Very Low-Average Power of Green Light to Produce PDMS Microchips

Lucero M. Hernandez -Cedillo; Francisco G. Vázquez-Cuevas; Rafael Quintero-Torres; Jose L. Aragón; Miguel Angel Ocampo Mortera; Cesar L. Ordóñez-Romero; Jorge Luis Domínguez-Juárez

doi:10.20944/preprints202012.0630.v1

A peer-reviewed article of this Preprint also exists.

Hernandez-Cedillo, L.M.; Vázquez-Cuevas, F.G.; Quintero-Torres, R.; Aragón, J.L.; Ocampo Mortera, M.A.; Ordóñez-Romero, C.L.; Domínguez-Juárez, J.L. Microfabrication with Very Low-Average Power of Green Light to Produce PDMS Microchips. Polymers 2021, 13, 607. Hernandez-Cedillo, L.M.; Vázquez-Cuevas, F.G.; Quintero-Torres, R.; Aragón, J.L.; Ocampo Mortera, M.A.; Ordóñez-Romero, C.L.; Domínguez-Juárez, J.L. Microfabrication with Very Low-Average Power of Green Light to Produce PDMS Microchips. Polymers 2021, 13, 607.

Abstract

In this letter, we show an alternative low-cost fabrication method to obtain poly(dimethyl siloxane) (PDMS) microfluidic devices. The proposed method allows the inscription of micron resolution channels on polystyrene (PS) surfaces, used as a mold for the wanted microchip’s production, by applying a high absorption coating film on the PS surface to ablate it with a focused low-power visible laser. The method allows obtaining micro resolution channels at powers between 2 and 10mW and can realize any two-dimensional polymeric devices. The effect of the main processing parameters on the channel’s geometry is presented.

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Microfabrication With Very Low-Average Power of Green Light to Produce PDMS Microchips

Abstract

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Subject

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