Title

Effect of thermal treatment on the chemical resistance of polydimethylsiloxane for microfluidic devices

Authors

Authors

J. Lee; J. Kim; H. Kim; Y. M. Bae; K. H. Lee;H. J. Cho

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

J. Hydrol. Eng.

Keywords

SURFACE MODIFICATION; POLY(DIMETHYLSILOXANE); TEMPERATURE; DNA; Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Instruments & Instrumentation; Materials Science, Multidisciplinary; Mechanics

Abstract

We investigated the use of thermally treated polydimethylsiloxane (PDMS) for chemically-resistant microchannels. When the PDMS underwent the thermal treatment at 300 degrees C, swelling was reduced and the surface of the PDMS microfluidic channel endured well in the extracting media such as dichloromethane. Furthermore, despite the small decrease in size after thermal treatment, both the channel shape and transparency were maintained without showing fluid leakage. The thermally treated PDMS had more hydrophilic properties compared to the untreated PDMS. A single step post-casting process described in this work does not require complex chemical treatments or introduction of foreign materials to the host PDMS substrate, thus expanding the application area of PDMS-based microfluidics.

Journal Title

Journal of Micromechanics and Microengineering

Volume

J. Micromech. Microeng.

Issue/Number

3

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

7

WOS Identifier

23

ISSN

0960-1317

Share

COinS