高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (11): 2083.

• 研究快报 • 上一篇    下一篇

SERS活性液芯光纤的制备及超灵敏检测应用

徐蔚青1, 徐抒平1, 吕志成1, 王魁香2, 赵冰1, 樊玉国1   

  1. 1. 吉林大学超分子结构与材料教育部重点实验室;
    2. 吉林大学物理学院, 长春 130023
  • 收稿日期:2003-05-08 出版日期:2003-11-24 发布日期:2003-11-24
  • 通讯作者: 徐蔚青(1957年出生),男,研究员,主要从事纳米结构与材料的光谱研究.E-mail:wqxu@jlu.edu.cn E-mail:wqxu@jlu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:20273022,20173019)资助

Preparation of SERS-Active Liquid Core Fiber and Its Application to the Ultrasensitive Detection

XU Wei-Qing1, XU Shu-Ping1, Lü Zhi-Cheng1, WANG Kui-Xiang2, ZHAO Bing1, FAN Yu-Guo1   

  1. 1. Key Laboratory for Supramolecular Structure and Material, Ministry of Education;
    2. College of Physics, Jilin University, Changchun 130023, China
  • Received:2003-05-08 Online:2003-11-24 Published:2003-11-24

关键词: SERS, 液芯光纤, 超灵敏

Abstract: Anovel ultrasensitive detection in a small volume of a low refractive index liquid via Surface enhanced Raman scattering(SERS)-active liquid core waveguide is described.The liquid core waveguide demonstrated was constructed by using the light-guiding silica capillary modified with SERS-active nanoparticles on the inner surface of the fiber wall.The Raman signal of the sample can be remarkably enhanced by the immobilized Ag nanoparticles.The laser and SERS scattering from the flowing liquid in the core possess the totally reflective waveguide model within the fiber wall.Thus, the sample dissolved in the low refractive index liquid, e.g. methanol, can be quantitatively monitored by Raman spectra in the liquid core cell and the detection limit can reach 10-8mol/L.

Key words: SERS, Liquid core(LC) fiber, Ultrasensitive detection

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