Chinese Journal of Applied Chemistry ›› 2017, Vol. 34 ›› Issue (5): 519-526.DOI: 10.11944/j.issn.1000-0518.2017.05.160505

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Gold Nanorod-loaded Electrospun Fibers:Preparation and Surface-enhanced Raman Spectroscopy Performance

YAN Zhaodongab,LI Yangab,ZHANG Taoab,LIU Zhichengab,LIU Yaqingab*()   

  1. aSchool of Material Science and Engineering,North University of China,Shanxi Province Key Laboratory of Functional Nano Composites
    bResearch Center for Engineering Technology of Polymeric Composites of Shanxi Province,Taiyuan 030051,China
  • Received:2016-12-13 Accepted:2017-02-17 Online:2017-05-02 Published:2017-05-02
  • Contact: LIU Yaqing
  • Supported by:
    Supported by Programs of Higher Education Institutions in Shanxi(No.2015161), Open funding of the Shanxi Province Key Laboratory of Functional Nanocomposites and Scientific and Technological Innovation(No.NFCM201604), Shanxi Province Science Foundation for Youths(No.201601D021035)


In this work, the highly active surface-enhanced Raman spectroscopy(SERS) substrate was fabricated by a simple and effective method. Electrospun polyvinyl alcohol(PVA)/polyacrylic acid(PAA) nanofibers were used as supporting material and a SERS substrate with excellent performance was obtained by a direct-immersed method due to the electrostatic force between gold nanorods and nanofibers. The morphologies of gold nanorods and electrospun fibers in different states were characterized by transmission electron microscopy and scanning electron microscopy. Gold nanorods are loaded uniformly and densely on the surface of fibers. The optimal assembly time of gold nanorods is 12 hours. By adjusting the spinning time and the concentration of gold nanorods, it was found that the SERS signal of the composite fiber membrane increased with the increase of the spinning time and the concentration of gold nanorods. The composite fiber membrane shows excellent SERS uniformity and the 4-aminothiophenol at a concentration of 10-10 mol/L can be detected.

Key words: gold nanorods, electrospunfibers, electrostaticforce, self-assembly, surface-enhanced Raman spectroscopy substrate