Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (12): 1364-1373.DOI: 10.11944/j.issn.1000-0518.2020.12.200180

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Electrospinning Composite Nanofibers for the Application of Flexible Substrate of Surface-Enhanced Raman Scattering Sensing

ZHANG Liang, HE Xinhai*, REN Yanwei, CHEN Tongshan, CHEN Dongzhen*   

  1. Key Laboratory of Functional Sensing Fiber and Special-Shaped Weaving Technology in Textile Industry,School of Mateials & Engineering,Xi'an Polytechnic University,Xi'an 710048,China
  • Received:2020-06-13 Revised:2020-07-08 Accepted:2020-08-06 Published:2020-12-01 Online:2020-12-07
  • Contact: CHEN Dongzhen , lecturer; E-mail:Chendz365@xpu.edu.cn; Research interests: surface enhanced Raman scattering sensing interface
    Co-corresponding author:HE Xinhai , professor; E-mail:hexinhai@xpu.edu.cn; Research interests:functional fiber and textile structure composites
  • Supported by:
    Xi'an Polytechnic University Keqiao Textile Industry Innovation Research Institute Collaborative Innovation Project(No.19KQZD01), Xi'an Science and Technology Project(No.GXYD7.3) and Key R & D Program of Shaanxi Province(No.2020GY-273)

Abstract: Surface enhanced Raman scattering (SERS) is a molecular detection spectroscopy technique. With the help of the SERS substrate, trace molecules in complex systems such as biology and chemistry can be analyzed. Among them, the electrospun nanofiber SERS substrate has the characteristics of high specific surface area, air permeability, water permeability, flexibility, foldability and bending. In the application scenarios of extracting and detecting trace molecules in complex systems, its surface structure has unmatched by other rigid SERS substrates. However, the development of electrospun nanofiber SERS substrates is limited by the preparation method, which has the problems of low detection sensitivity and complicated preparation process. Therefore, the current research work mainly focuses on the development of new preparation methods and processes. This article reviews several common preparation methods for SERS substrates of electrospun nano-gold-silver composite fibers, including direct mixed spinning, chemical adsorption, electrostatic adsorption, physical deposition, and in-situ chemical reduction, and summarizes the application of electrospinning nanofiber SERS substrate in the extraction, filtration and concentration of molecules to be tested in complex systems, and finally the prospect of the development of electrospun nano-composite fiber SERS substrate.

Key words: surface enhanced Raman scattering, nanofiber membrane, electrospinning, metal nanoparticles

CLC Number: