Polyaniline/Carboxydextran-Gold Hybrid Nanomaterials as a Biofuel Cell Electrode Platform

The electrochemical properties of composite films consisting of polyaniline (PANI) and carboxydextran-gold hybrid nanomaterials (carDEX-GNP) as a biofuel cell electrode platform were investigated. First, dextran-gold hybrid nanomaterials were synthesized through a series of surface modification of gold nanoparticles. The composite films were formed on a planar gold electrode through electropolymerization after a simple chemical modification of dextran-gold hybrid nanomaterials with carboxyl groups. Cyclic voltammetry indicated that the composite films retained a redox activity in a neutral pH environment. The PANI/carDEX-GNPs composite films showed electrocatalytic activity toward the oxidation of ascorbic acid, indicating that this composite film is an excellent candidate for a biofuel cell electrode.

[1]  A. Tsutsumi,et al.  Electrochemical properties of polyaniline/carboxydextran (PANI/carDEX) composite films for biofuel cells in neutral aqueous solutions , 2009, Biotechnology Letters.

[2]  V. Pérez-Luna,et al.  Surface-grafted hybrid material consisting of gold nanoparticles and dextran exhibits mobility and reversible aggregation on a surface. , 2007, Langmuir : the ACS journal of surfaces and colloids.

[3]  Frank Davis,et al.  Biofuel cells--recent advances and applications. , 2007, Biosensors & bioelectronics.

[4]  Wolfgang Knoll,et al.  Polyaniline/gold nanoparticle multilayer films: Assembly, properties, and biological applications , 2004 .

[5]  B. Fabre,et al.  Poly(aniline boronic acid)-based conductimetric sensor of dopamine. , 2003, Chemical communications.

[6]  Zhehui Wang,et al.  Electroactivity of Polyaniline Multilayer Films in Neutral Solution and Their Electrocatalyzed Oxidation of β‐Nicotinamide Adenine Dinucleotide , 2003 .

[7]  Itamar Willner,et al.  Integration of polyaniline/poly(acrylic acid) films and redox enzymes on electrode supports: an in situ electrochemical/surface plasmon resonance study of the bioelectrocatalyzed oxidation of glucose or lactate in the integrated bioelectrocatalytic systems. , 2002, Journal of the American Chemical Society.

[8]  I. Willner,et al.  Redox Activation of a Polyaniline-Coated Cantilever: An Electro-Driven Microdevice Parts of this research are supported by The Israel Ministry of Science and the Israel Science Foundation. M. Lahav gratefully acknowledges the support of The Clore Israel Foundation Scholars Programme. , 2001, Angewandte Chemie.

[9]  A. MacDiarmid,et al.  "Synthetic Metals": A Novel Role for Organic Polymers (Nobel Lecture). , 2001, Angewandte Chemie.

[10]  Su-Moon Park,et al.  Electrochemistry of conductive polymers XXIII: polyaniline growth studied by electrochemical quartz crystal microbalance measurements , 1999 .

[11]  M. Hepel.  The Electrocatalytic Oxidation of Methanol at Finely Dispersed Platinum Nanoparticles in Polypyrrole Films , 1998 .

[12]  A. Karyakin,et al.  Self-doped polyanilines electrochemically active in neutral and basic aqueous solutions , 1994 .

[13]  N. Oyama,et al.  IR absorption spectroscopic identification of electroactive and electroinactive polyaniline films prepared by the electrochemical polymerization of aniline , 1984 .