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Strain Sensing Based on Multiscale Composite Materials Reinforced with Graphene Nanoplatelets
Published on: November 7, 2016
Thermoresponsive fluorescence of a graphene-polymer composite based on a local surface plasmon resonance effect
Yunyun Huang1, Wensheng Lin, Kan Chen
1Key Lab Polym Compos & Funct Mat, Key Lab Designed Synth & Appl Polym Mat, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275 China. cescxd@mail.sysu.edu.cn ceszmq@mail.sysu.edu.cn.
Abstract:
A water-processable blue fluorescent silver nanoparticle@graphene-polymer composite (Ag@G-pNIPAM) consisting of graphene coated with a thermally responsive poly-(N-isopropylacrylamide) (pNIPAM) shell is prepared. The pNIPAM shell swells or collapses as a function of temperature, serving as a means to trap silver nanoparticles in solution and get them sufficiently close to the graphene core to provide fluorescence enhancement based on the local surface plasmon resonance (LSPR) effect. The unique thermoresponsive properties and high enhancement ratio of the material should find application in solution fluorescence enhancers and a variety of biomedical applications, such as cellular uptake, sensing and imaging.
