P5.8 - Light-stimulated hydrogel actuators with incorporated graphene oxide for microfluidic applications
- 12. Dresdner Sensor-Symposium 2015
2015-12-07 - 2015-12-09
Hotel Elbflorenz, Dresden
- P5. Mikrofluidische und nanostrukturierte Sensoren
- L. Breuer, M. Raue, T. Mang, M. Schöning, T. Wagner - Fachhochschule Aachen, Jülich/D, R. Thoelen - Universität Hasselt, Diepenbeek/BEL
- 206 - 209
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.