Issue 30, 2012
From the journal:

Journal of Materials Chemistry

Single layer Prussian blue grid as a versatile enzyme trap for low-potential biosensors†

Zhenyu Chu,a   Lei Shi,a   Yannan Zhang,a   Wanqin Jin,*a   Susan Warren,b   David Wardb  and  Eithne Dempseyb  

* Corresponding authors

a State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical engineering, Nanjing University of Technology, 5 Xinmofan Road, Nanjing 210009, P. R. China
E-mail: wqjin@njut.edu.cn
Fax: +86 25-8317-2292
Tel: +86 25-8317-2266

b Centre for Research in Electroanalytical Technologies (CREATE), Department of Science, Institute of Technology Tallaght, Tallaght, Dublin 24, Ireland

Abstract

A single layer Prussian blue (PB) grid was constructed on a Pt substrate using a self-assembly approach with nanosphere lithography in order to create a matrix for the uniform and ordered immobilization of proteins. Enzymes were captured in the cavities of the PB grid with the aid of an alkoxy silane linker, which enabled strong interaction between the silane's alkoxy groups and Pt. Using a low applied potential of −0.1 V vs. Ag/AgCl the as-prepared biosensors exhibited excellent performance in the detection of glucose, lactate and glutamate, indicating the versatile application of this specific PB architecture in the area of biosensors.

Graphical abstract: Single layer Prussian blue grid as a versatile enzyme trap for low-potential biosensors

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Article information

DOI
https://doi.org/10.1039/C2JM33083K
Article type
Paper
Submitted
12 Mar 2012
Accepted
29 May 2012
First published
11 Jun 2012

J. Mater. Chem., 2012,22, 14874-14879

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Single layer Prussian blue grid as a versatile enzyme trap for low-potential biosensors

Z. Chu, L. Shi, Y. Zhang, W. Jin, S. Warren, D. Ward and E. Dempsey, J. Mater. Chem., 2012, 22, 14874 DOI: 10.1039/C2JM33083K

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