高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (2): 379.

• 研究快报 • 上一篇    下一篇

金纳米粒子与聚吡咯纳米管的复合及其SERS效应研究

何永洪1,2, 袁金颖1,2,3, 石高全2, 武培怡3, 王晓琳4   

  1. 1. 清华大学有机光电子与分子工程教育部重点实验室;
    2. 清华大学化学系,北京 100084;
    3. 复旦大学聚合物分子工程教育部重点实验室,上海 200433;
    4. 清华大学化学工程系,北京 100084
  • 收稿日期:2004-10-20 出版日期:2005-02-10 发布日期:2005-02-10
  • 通讯作者: 袁金颖(1965年出生),女,博士,副教授,主要从事高分子合成、功能高分子材料、有机2无机复合材料与杂化材料方面的研究.E-mail:yuanjy@mai.ltsinghua.edu.cn E-mail:yuanjy@mai.ltsinghua.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:50373023,50433020,20374034,50225311)资助

Gold Nanoparticle Coated Polypyrrole Nanotubule and Its SERS Effect

HE Yong-Hong1,2, YUAN Jin-Ying1,2,3, SHI Gao-Quan2, WU Pei-Yi3, WANG Xiao-Lin4   

  1. 1. Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Tsinghua University, Beijing 100084, China;
    2. Department of Chemistry, Tsinghua University, Beijing 100084, China;
    3. Key Laboratory of Molecular Engineering of Polymers, Ministry of Education, Fudan University, Shanghai 200433, China;
    4. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2004-10-20 Online:2005-02-10 Published:2005-02-10

PDF (PC)

被引次数

15

关键词: 金纳米粒子, 聚吡咯, 表面增强拉曼散射

Abstract: A method of fabricating gold nanoparticle coated polypyrrole(PPy) tubules was developed by coating citrate-reduced gold nanoparticles on polypyrrole tubule templates. The PPy tubules were grown uniformly with a diameter of 200 nm, which is in agreement with that of the pore size of the microporous polycarbonate(PC) membrane template. The Au particles formed by citrate reduction can be deposited on the surface of the PPy tubules. Electrostatic interaction between gold nanoparticles and PPy tubules was used as a driving force for this assembly process. The TEM image shows that a submonolayer coating of the particles was formed.The Au nanoparticle coated PPy tubules was applied to hold and analyze trace molecules as signal-enhancing cuvettes for Raman spectroscopy. Their SERS-activity was tested with Rhodamine B. In contrast with the neat PPy tubule, the Raman scattering of trace Rhodamine B on the Au nanoparticle-coated tubule was enhanced by a factor of 105. This work develops a cheap and convenient method to fabricate gold nanocrystal coated PPy tubule and its application as fabrication of Raman signal enhancing cuvette.

Key words: Gold nanoparticle, Polypyrrole, SERS

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