Research Article

Nano Research

, Volume 2, Issue 5, pp 386-393

Open Access This content is freely available online to anyone, anywhere at any time.

Au-Ag alloy nanoporous nanotubes

  • Xiaohu GuAffiliated withSchool of Chemistry and Chemical Engineering, Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University
  • , Liqiang XuAffiliated withSchool of Chemistry and Chemical Engineering, Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University
  • , Fang TianAffiliated withSchool of Chemistry and Chemical Engineering, Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University
  • , Yi DingAffiliated withSchool of Chemistry and Chemical Engineering, Key Laboratory of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University Email author 

Abstract

Metallic nanostructures with hollow interiors or tailored porosity represent a special class of attractive materials with intriguing chemicophysical properties. This paper presents the fabrication of a new type of metallic nanoporous nanotube structure based on a facile and effective combination of nanocrystal growth and surface modification. By controlling the individual steps involved in this process, such as nanowire growth, surface modification, thermal diffusion, and dealloying, one-dimensional (1-D) metallic nanostructures can be prepared with tailored structural features and pre-designed functionalities. These tubular and porous nanostructures show distinct optical properties, such as tunable absorption in the near-infrared region, and enhanced capability for electrochemiluminescence signal amplification, which make them particularly desirable as novel 1-D nanocarriers for biomedical, drug delivery and sensing applications.

http://static-content.springer.com/image/art%3A10.1007%2Fs12274-009-9038-3/MediaObjects/12274_2009_9038_Fig1_HTML.jpg

Keywords

Nanoporous nanotube gold optical properties electrochemiluminescence