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Ionic liquid-assisted synthesis of polyaniline/gold nanocomposite and its biocatalytic application

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journal contribution
posted on 2008-11-01, 00:00 authored by Wenrong YangWenrong Yang, J Liu, R Zheng, Z Liu, Y Dai, G Chen, S Ringer, F Braet
In this report, a novel chemical synthesis of polyaniline/gold nanocomposite is explored using ionic liquid (IL) 1-Butyl-3-methylimidazolium hexafluorophosphate. The direct chemical synthesis of polyaniline/gold nanocomposite was initiated via the spontaneous oxidation of aniline by AuCl4 − in IL. A nearly uniform dispersion of polyaniline/Au particles with a diameter of 450 ± 80 nm was produced by this method, which indicates that this method is more suitable for controlling particle dimensions. It was also found that the electrical conductivity of the polyaniline/gold nanocomposite was more than 100 times higher than that of the pure polyaniline nanoparticles. The polyaniline/gold nanocomposite displays superior function in the biocatalytic activation of microperoxidase-11 because of the high surface area of the assembly and the enhanced charge transport properties of the composite material. We also report the possible application of polyaniline/gold nanocomposite as a H2O2 biosensor.

History

Journal

Nanoscale research letters

Volume

3

Pagination

468 - 472

Location

Seacaucus, NJ

Open access

  • Yes

ISSN

1556-276X

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2008, Springer