Block Copolymer Supported Gold Nanoparticles Assemblies with Exposed Gold Surface |
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| Authors: | ZONG Chen LIU Guangnan XU Wenhao CHEN Jie TANG Yun |
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| Institution: | Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China |
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| Abstract: | Polymer-involved nanoparticles or nanoparticle assemblies are now facing a crossroad, where the exposure of nanoparticle and multiple nanoparticles cannot be obtained at the same time. Therefore, a new series of nanoparticle clusters is synthesized, where multiple gold nanoparticles assemble with amphiphilic block copolymers supporting inside. The exposure of gold nanoparticles of the structure is confirmed and increases the reduction rate of 4-nitrophenol by 60%. The assemblies can also be used as surface enhanced Raman scattering(SERS) probes with an enhancement factor(EF) as high as 3×103. |
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| Keywords: | Gold nanoparticle Block copolymer co-Assembly |
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