Abstract

A gas-liquid interface in microfluidic devices requires effective gas absorption and minimal leakage. Here, we present porous polydimethylsiloxane (PDMS) as a gas-liquid interface for microfluidic applications. Two different porous PDMS structures, cube and film, have been prepared and tested for carbon dioxide (CO 2 ) absorption ability in microfluidic devices. Porous PDMS showed higher CO 2 absorption rates compared with original PDMS thin films. We also demonstrated the utility of porous PDMS gas-liquid interface via artificial photosynthesis device. The experimental results indicated that the porous PDMS gas-liquid interface facilitates sufficient glucose synthesis by allowing effective CO 2 penetration.

Date

2016

Authors

Xiang Ren, Hao Lu, Jack G Zhou, Parkson Lee-Gau Chong, Wenqiao Yuan, Moses Noh

Journal

Journal of Microelectromechanical Systems

Volume

26

Issue

1

Pages

120-126

Publisher

IEEE