3-D nanoporous gold thin film for the simultaneous electrochemical determination of dopamine and ascorbic acid

被引：98

作者：

El-Said, Waleed Ahmed ^{[2
]}

Lee, Jin-Ho ^{[1
]}

Oh, Byung-Keun ^{[1
,2
]}

Choi, Jeong-Woo ^{[1
,2
]}

机构：

[1] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea

[2] Sogang Univ, Interdisciplinary Program Integrated Biotechnol, Seoul 121742, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 12期

关键词：

Nanoporous film; Differential pulse voltammetry; Human serum; Dopamine; MODIFIED ELECTRODE; POROUS LAYERS; CARBON;

D O I：

10.1016/j.elecom.2010.10.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

In this study, we demonstrated a novel fabrication method of three dimensional nanoporous gold thin film (NPGF) onto gold (Au) substrate using electrochemical deposition method. Scanning electron microscope (SEM) investigation reveals the formation of highly-ordered pores, approximately 30 nm in diameter and 150 nm thick. The NPGF-modified electrode shows a linear range (0.1-40 mu M) for dopamine detection in the presence of ascorbic acid. The electrochemical measurements of mixtures of dopamine, ascorbic acid, and uric acid in human serum sample for real sample applications was also investigated based on differential pulse voltammetry (DPV) technique. These high sensitivity and selectivity features of the proposed NPGF biosensor offer great promise for real sample biosensor application. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1756 / 1759

页数：4

共 13 条

[1]

Electronically tunable conductivity of a nanoporous Au-Fe alloy [J].

Bansal, C. ;

Sarkar, S. ;

Mishra, A. K. ;

Abraham, T. ;

Lemier, C. ;

Hahn, H. .

SCRIPTA MATERIALIA, 2007, 56 (08) :705-708

[2]

Bard A.J., 2001, ELECTROCHEMICAL METH, P452

[3]

Polyeugenol-modified platinum electrode for selective detection of dopamine in the presence of ascorbic acid [J].

Ciszewski, A ;

Milczarek, G .

ANALYTICAL CHEMISTRY, 1999, 71 (05) :1055-1061

[4]

Electrochemical determination of dopamine and ascorbic acid at a novel gold nanoparticles distributed poly(4-aminothiophenol) modified electrode [J].

Gopalan, Anantha Iyengar ;

Lee, Kwang-Pill ;

Manesh, Kalayil Manian ;

Santhosh, Padmanabhan ;

Kim, Jun Heon ;

Kang, Jae Soo .

TALANTA, 2007, 71 (04) :1774-1781

[5]

Voltammetric selectivity conferred by the modification of electrodes using conductive porous layers or films: The oxidation of dopamine on glassy carbon electrodes modified with multiwalled carbon nanotubes [J].

Henstridge, Martin C. ;

Dickinson, Edmund J. F. ;

Aslanoglu, Mehmet ;

Batchelor-McAuley, Christopher ;

Compton, Richard G. .

SENSORS AND ACTUATORS B-CHEMICAL, 2010, 145 (01) :417-427

[6]

Simultaneous electrochemical determination of dopamine, uric acid and ascorbic acid using palladium nanoparticle-loaded carbon nanofibers modified electrode [J].

Huang, Jianshe ;

Liu, Yang ;

Hou, Haoqing ;

You, Tianyan .

BIOSENSORS & BIOELECTRONICS, 2008, 24 (04) :632-637

[7]

On the real surface area of smooth solid electrodes [J].

Jarzabek, G ;

Borkowska, Z .

ELECTROCHIMICA ACTA, 1997, 42 (19) :2915-2918

[8]

Electrochemical properties of ordered mesoporous carbon and its electroanalytical application for selective determination of dopamine [J].

Jia, Nengqin ;

Wang, Zhiyong ;

Yang, Guofeng ;

Shen, Hebai ;

Zhu, Longzhang .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (02) :233-238

[9]

Simultaneous measurement at dopamine and ascorbate at their physiological levels using voltammetric microprobe based on overoxidized poly(1,2-phenylenediamine)-coated carbon fiber [J].

Mo, JW ;

Ogorevc, B .

ANALYTICAL CHEMISTRY, 2001, 73 (06) :1196-1202

[10]

Noort D., 2000, BIOSENS BIOELECTRON, V15, P203

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