P5.8 - Light-stimulated hydrogel actuators with incorporated graphene oxide for microfluidic applications

Event
12. Dresdner Sensor-Symposium 2015
2015-12-07 - 2015-12-09
Hotel Elbflorenz, Dresden
Chapter
P5. Mikrofluidische und nanostrukturierte Sensoren
Author(s)
L. Breuer, M. Raue, T. Mang, M. Schöning, T. Wagner - Fachhochschule Aachen, Jülich/D, R. Thoelen - Universität Hasselt, Diepenbeek/BEL
Pages
206 - 209
DOI
10.5162/12dss2015/P5.8
ISBN
978-3-9813484-9-1
Price
free

Abstract

Graphene oxide (GO) nanoparticles, which are able to convert light energy into heat, were incorporated into temperature-sensitive Poly-N-isopropylacrylamide (P-NIPAAm) hydrogels. In contrast to pure P-NIPAAm hydrogels, the new polymers with GO showed significant sensitivity towards light as a stimulus. The photothermal conversion and heating process of hydrogels under illumination were investigated by IRthermography. Furthermore, first experiments for a possible application as light-driven microvalves within lab-on-chip systems were performed.

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