Abstract
The colloids of Au/polypyrrole (AuPPy) composite nanoparticles were prepared by oxidizing pyrrole monomer with HAuCl4 in a cetyltrimethylammonium bromide (CTAB) solution. Scanning electron microscopy (SEM) suggests the AuPPy nanoparticles in the form of regular spheres, approximately 200 nm in diameter. The resulting colloid of AuPPy composite nanoparticles strongly adheres to the surface of Au electrodes and exhibits better electrocatalytical reduction of oxygen than bare Au electrodes. It means that the complex procedures of centrifuge and wash are avoided. Also, no linker molecules are needed and the immobilization of nanoparticles is achieved easily in a single-step procedure. The experimental parameters were optimized with regard to the concentration of pyrrole and HAuCl4. The direct electron transfer of laccase is observed after it is immobilized on AuPPy modified electrodes by glutaraldehyde. With the help of mediator 2,2′-azino-bis-(3-ethylbenzothiazoline-sulfonic acid) (ABTS), laccase electrode gives an electrocatalytical reduction wave of oxygen at least at 0.8 V. This material is an excellent choice for the design of metal nanoparticle modified electrodes or biosensors
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A. Brito, F.J. García, M.C. Alvarez-Galván, M.E. Borges, C. Díaz and V.A. de la Peña O’Shea. Catalytic behaviour of Pt or Pd metal nanoparticles-zeolite bifunctional catalysts for n-pentane hydroisomerizationCatalysis Communications 8 (2007) 2081–2086
M.E.B. Calvo, O.D. Renedo and M.J.A. Martínez. Determination of lamotrigine by adsorptive stripping voltammetry using silver nanoparticlemodified carbon screen-printed electrodes.Talanta 74 (2007) 59–64
Z. Chen, Z. Peng, Y. Luo, B. Qu, J. Jiang, X. Zhang, G. Shen and R. Yu Successively amplified electrochemical immunoassay based on biocatalytic deposition of silver nanoparticles and silver enhancementBiosensors and Bioelectronics 23 (2007) 485–491
S. Chu, H. Kawamura and M. Mori. Fabrication and characteristics of Pd nanoparticles/nanofilms on ceramics toward catalytic electrodes.Electrochimica Acta 53 (2007) 92–99
D. Du, J. Ding, J. Cai and A. Zhang. Electrochemical thiocholine inhibition sensor based on biocatalytic growth of Au nanoparticles using chitosan as template.Sensors and Actuators B 127 (2007) 317–322
M.C. Henry, C. Hsueh, B.P. Timko, and M.S. Freund. Reaction of Pyrrole and Chlorauric Acid A New Route to Composite Colloids.Journal of The Electrochemical Society 148 (2001) D155-D162
S. Jing, S. Xing, L. Yu and C. Zhao. Synthesis and characterization of Ag/ polypyrrole nanocomposites based on silver nanoparticles colloid.Materials Letters 61 (2007) 4528–4530
S.E. Létant, J. Herberg, L.N. Dinh, R.S. Maxwell, R.L.S. and A.P. Saab. Structure and catalytic activity of POSS-stabilized Pd nanoparticles.Catalysis Communications 8 (2007) 2137–2142
J. Lin, L. Zhang and S. Zhang. Amperometric biosensor based on coentrapment of enzyme and mediator by gold nanoparticles on indium-tin oxide electrode.Analytical Biochemistry 370 (2007), 180–185
X. Lu, D. Chao, J. Chen, W. Zhang and Y. Wei. Preparation and characterization of inorganic/organic hybrid nanocomposites based on Au nanoparticles and polypyrrole.Materials Letters 60 (2006) 2851–2854
A.R. Panda and A. Chattopadhyay. A water-soluble polythiophene-Au nanoparticle composite for pH sensingJournal of Colloid and Interface Science 316 (2007) 962–967
J. Park, M. Atobe and T. Fuchigami. Sonochemical synthesis of conducting polymer-metal nanoparticles nanocomposite.Electrochimica Acta 51 (2005) 849–854
V. Selvaraj and M. Alagar. Pt and Pt-Ru nanoparticles decorated polypyrrole/multiwalled carbon nanotubes and their catalytic activity towards methanol oxidation.Electrochemistry Communications 9 (2007) 1145–1153
X. Zhou, X. Zhang, X. Yu, X. Zha, Q. Fu, B. Liu, X. Wang, Y. Chen, Y. Chen, Y. Shan, Y. Jin, Y. Wu, J. Liu, W. Kong and J. Shen. The effect of conjugation to gold nanoparticles on the ability of low molecular weight chitosan to transfer DNA vaccine.Biomaterials 29 (2008) 111–117
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Miao, Y., Wu, X., Chen, J. et al. Preparation of Au/ polypyrrole composite nanoparticles and study of their electrocatalytical reduction to oxygen with (without) lacasse. Gold Bull 41, 336–340 (2008). https://doi.org/10.1007/BF03214891
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DOI: https://doi.org/10.1007/BF03214891