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Proceedings 2017, 1(4), 524; doi:10.3390/proceedings1040524

Light-Stimulated Hydrogels with Incorporated Graphene Oxide as Actuator Material for Flow Control in Microfluidic Applications

1
Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany
2
Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium
3
Peter Grünberg Institute (PGI), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 5 September 2017
(This article belongs to the Proceedings of Eurosensors 2017)
Download PDF [940 KB, uploaded 7 September 2017]

Abstract

Temperature-responsive Poly-N-isopropylacrylamide (PNIPAAm) hydrogels were modified with graphene oxide (GO) nanoparticles to increase the light absorption significantly and these gels can be heated and stimulated optothermically. These light-responsive hydrogels are promising candidates as actuator material for microfluidic applications. For demonstration, the hydrogels were tested as light-driven valves for the active flow control within microfluidic channels by monitoring the pressure and flow for different operation states.
Keywords: hydrogel; light-addressable actuator; graphene oxide; microfluidic; valve hydrogel; light-addressable actuator; graphene oxide; microfluidic; valve
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Breuer, L.; Guthmann, E.; Schöning, M.J.; Thoelen, R.; Wagner, T. Light-Stimulated Hydrogels with Incorporated Graphene Oxide as Actuator Material for Flow Control in Microfluidic Applications. Proceedings 2017, 1, 524.

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