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Light-controllable polymeric material based on temperature-sensitive hydrogels with incorporated graphene oxide

  • Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light-stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.

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Author:Lars Breuer, Markus Raue, M. Kirschbaum, Thomas Mang, Michael Josef SchöningORCiD, R. Thoelen, Torsten WagnerORCiD
Parent Title (English):Physica status solidi (a)
Place of publication:Weinheim
Document Type:Article
Year of Completion:2015
Date of the Publication (Server):2015/03/30
First Page:1368
Last Page:1374
Institutes:FH Aachen / Fachbereich Chemie und Biotechnologie
FH Aachen / Fachbereich Medizintechnik und Technomathematik
FH Aachen / INB - Institut für Nano- und Biotechnologien
collections:Verlag / Wiley