Chemical Research in Chinese Universities ›› 2022, Vol. 38 ›› Issue (4): 1118-1122.doi: 10.1007/s40242-022-1485-3

• Articles • Previous Articles    

Block Copolymer Supported Gold Nanoparticles Assemblies with Exposed Gold Surface

ZONG Chen, LIU Guangnan, XU Wenhao, CHEN Jie, TANG Yun   

  1. 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
  • Received:2021-12-06 Revised:2022-02-07 Online:2022-08-01 Published:2022-02-17
  • Contact: TANG Yun E-mail:yuntang@fudan.edu.cn
  • Supported by:
    This work was supported by the National Key Research and Development Program of China(Nos.2017YFA0207303, 2018YFA0209401) and the National Natural Science Foundation of China(Nos.22088101, 22175039).

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.

Key words: Gold nanoparticle, Block copolymer, co-Assembly