Polyaniline/gold nanoparticles (PANI/AuNPs) nanocomposites were prepared using a simple self-assembly procedure. Polyvinyl pyrrolidone (PVP) was used as a stabilizing ligand of AuNPs and was shown to prevent the aggregation of AuNPs and to improve the affinity of AuNPs to PANI. By varying the ratio of PANI to AuNPs, the amount of loaded AuNPs was effectively controlled. UV-vis spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and electrochemical methods were used to characterize the nanocomposites. The nanocomposites showed electroactivity in neutral solution, making them promising candidates for various bioanalytical applications. A sensor constructed using PANI/AuNPs nanocomposites showed 6-fold higher electrocatalytic activity toward the oxidation of ascorbic acid than that composed of a pure PANI-modified electrode. (C) 2010 Elsevier Ltd. All rights reserved.
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Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Virji, Shabnam
;
Kojima, Robert
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Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Kojima, Robert
;
Fowler, Jesse D.
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Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Fowler, Jesse D.
;
Kaner, Richard B.
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Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Kaner, Richard B.
;
Weiller, Bruce H.
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Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
机构:
Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Virji, Shabnam
;
Kojima, Robert
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Kojima, Robert
;
Fowler, Jesse D.
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h-index: 0
机构:
Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Fowler, Jesse D.
;
Kaner, Richard B.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA
Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA
Kaner, Richard B.
;
Weiller, Bruce H.
论文数: 0引用数: 0
h-index: 0
机构:
Aerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USAAerosp Corp, Mat Proc & Evaluat Dept, Phys Sci Lab, Los Angeles, CA 90009 USA