高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (1): 123.

• 研究快报 • 上一篇    下一篇

水汽界面二维银颗粒表面上的单分子拉曼光谱检测

胡家文1, 赵冰1, 徐蔚青1, 谢玉涛1, 樊玉国1, 李伯符1, 王华2   

  1. 1. 吉林大学超分子结构与谱学教育部重点实验室, 长春 130023;
    2. 吉林大学中日联谊医院, 长春 130023
  • 收稿日期:2001-07-27 出版日期:2002-01-24 发布日期:2002-01-24
  • 通讯作者: 赵冰(1965出生),男,博士,教授,博士生导师,从事分子光谱学研究.
  • 基金资助:

    国家自然科学基金(批准号:29975011;29633010);国家重点基础研究发展规划项目(批准号:G2000078102)资助

The Raman Detection of Single Molecule at the Aggregated Silver Particle Films on Air-water Interface

HU Jia-Wen1, ZHAO Bing1, XU Wei-Qing1, XIE Yu-Tao1, FAN Yu-Guo1, LI Bo-Fu1, WANG Hua2   

  1. 1. Key Laboratory for Supermolecular Structure and Spectroscopy of Ministry of Education, Jilin University, Changchun 130023, China;
    2. China-Japan Union Hospital of Jilin University, Changchun 130023, China
  • Received:2001-07-27 Online:2002-01-24 Published:2002-01-24

关键词: 表面增强拉曼光谱, 银溶胶, 单分子检测, 二维银膜

Abstract: We have found that the silver colloids, which usually used as SERSactive substrate, are inclined to aggregation on air-water interface and forming a two-dimension silver particle films. The formed silver particle films exhibit much higher surface Raman enhancement factor than silver colloids, and the power used on silver particle films is only about 1% of that on silver colloids. Combining with resonance Raman enhancement technique, we realize single molecular Raman detection under the common conditions by using this silver particle films as SERSactive substrate.

Key words: SERS, Siliver colloid, Single molecule detection, 2-D Ag film

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