Fabrication of Gold Nanocrystal Coated Polypyrrole Nanotubule.
writer：Yonghong He, Jinying Yuan*, Gaoquan Shi,*
keywords：/
source：期刊
specific source：Journal of Materials Chemistry, 2005, 15: 859
Issue time：2005年
A method of fabricating gold nanocrystals coated polypyrrole (PPy) tubules was developed by coating carboxylic acid–thiol-capped or citrate-reduced gold nanoparticles on polypyrrole tubule templates. Electrostatic interaction between gold nanoparticles and PPy tubules was used as a driving force for this assembly process. The gold nanoparticle coated PPy tubule can be applied as signal-enhancing cuvettes for Raman spectroscopic analysis of trace molecules. The Raman scattering of trace Rhodamine B on the Au nanoparticle-coated tubule was enhanced by a factor of 104–105.