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

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

In this article, 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...

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Bibliographic Details
Main Authors: Lucero M. Hernandez-Cedillo, Francisco G. Vázquez-Cuevas, Rafael Quintero-Torres, Jose L. Aragón, Miguel Angel Ocampo Mortera, Cesar L. Ordóñez-Romero, Jorge L. Domínguez-Juárez
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Polymers
Subjects:
microfabrication
polymeric microchip
laser ablation
PDMS devices
low-cost fabrication tool
Online Access:https://www.mdpi.com/2073-4360/13/4/607
Description
Summary:In this article, 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 for obtaining micro-resolution channels at powers between 2 and 10 mW and can realize any two-dimensional polymeric devices. The effect of the main processing parameters on the channel’s geometry is presented.
ISSN:2073-4360

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