Sol-gel derived nanostructured cerium oxide film for glucose sensor

被引：120

作者：

Ansari, Anees A. ^{[1
]}

Solanki, Pratima R. ^{[1
]}

Malhotra, B. D. ^{[1
]}

机构：

[1] Natl Phys Lab, Biomol Elect & Conducting Polymer Res Grp, New Delhi 110012, India

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 26期

关键词：

D O I：

10.1063/1.2953686

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Sol-gel derived nanostructured cerium oxide (CeO2) film deposited on gold (Au) electrode has been utilized for physisorption of glucose oxidase (GOx). X-ray diffraction, atomic force microscopy, UV-visible spectroscopy, and electrochemical techniques have been used to characterize sol-gel derived CeO2/Au electrode and GOx/CeO2/Au bioelectrode. The response characteristics of the glucose bioelectrode (GOx/CeO2/Au) indicate linearity, detection limit and shelf-life as 50-400 mg/dL, 12.0 mu M, and 12 weeks, respectively. The value of apparent Michaelis-Menten constant (K-m) of GOx/CeO2/Au bioelectrode has been found to be 13.55 mu M. (c) 2008 American Institute of Physics.

引用

页数：3

共 24 条

[1] Size dependency variation in lattice parameter and valency states in nanocrystalline cerium oxide [J].

Deshpande, S ;

Patil, S ;

Kuchibhatla, SVNT ;

Seal, S .

APPLIED PHYSICS LETTERS, 2005, 87 (13) :1-3

[2] Hydrogen peroxide detection at electrochemically and sol-gel derived Ir oxide films [J].

Elzanowska, H ;

Abu-Irhayem, E ;

Skrzynecka, B ;

Birss, VI .

ELECTROANALYSIS, 2004, 16 (06) :478-490

[3]

*EPAPS, EAPPLAB93017827 EPAP

[4] A nano-porous CeO2/chitosan composite film as the immobilization matrix for colorectal cancer DNA sequence-selective electrochemical biosensor [J].

Feng, Ke-Jun ;

Yang, Yun-Hui ;

Wang, Zhi-Jie ;

Jiang, Jian-Hui ;

Shen, Guo-Li ;

Yu, Ru-Qin .

TALANTA, 2006, 70 (03) :561-565

[5] Direct electrochemistry and electrocatalysis of horseradish peroxidase immobilized in sol-gel-derived tin oxide/gelatin composite films [J].

Jia, NQ ;

Zhou, Q ;

Liu, L ;

Yan, MM ;

Jiang, ZY .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2005, 580 (02) :213-221

[6] One-step immobilization of glucose oxidase in a silica matrix on a Pt electrode by an electrochemically induced sol-gel process [J].

Jia, Wen-Zhi ;

Wang, Kang ;

Zhu, Zheng-Jiang ;

Song, Hang-Tian ;

Xia, Xing-Hua .

LANGMUIR, 2007, 23 (23) :11896-11900

[7]

Kim HJ, 2006, B KOREAN CHEM SOC, V27, P65

[8] In-situ growth of copper sulfide nanocrystals on multiwalled carbon nanotubes and their application as novel solar cell and amperometric glucose sensor materials [J].

Lee, Hyunju ;

Yoon, Sang Won ;

Kim, Eun Joo ;

Park, Jeunghee .

NANO LETTERS, 2007, 7 (03) :778-784

[9]

Li QW, 2001, ELECTROANAL, V13, P413, DOI 10.1002/1521-4109(200104)13:5<413::AID-ELAN413>3.3.CO

[10]

2-9

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