Paper Title:
3D Pyramidal Micropool Array Electrode for Amperometric Microsensor
  Abstract

This paper reports a novel three-dimensional (3D) microelectrode to enhance the sensitivity and current output of the amperometric microsensor. Based on silicon bulk micromachining technology and the introduction of nanomaterials, the 3D microelectrodes (3DME) are fabricated as working electrodes of the amperometric sensor. It comprises both sensitive microstructures and platinum (Pt) nanoparticles. The 3D micro structure can enlarge the effective surface area of working electrode and make more analyte to approach electrode surface more easily. This design provides a better microenvironment for electrodeposition of platinum nanoparticales. It further improves the enhancement effect of catalytic efficiency and electroactivity for the microelectrode. The sensor has been successfully used to detect H2O2, which is a vital target analyte in glucose detection and enzyme-linked immunodetection. Compared with amperometric biosensor based on planar microelectrode (PME), this sensor has advantages of lower detection limit, higher current signal and higher sensitivity.

  Info
Periodical
Edited by
Xiaohao Wang
Pages
103-107
DOI
10.4028/www.scientific.net/KEM.483.103
Citation
J. Z. Sun, Y. Li, C. Bian, J. H. Tong, H. P. Dong, H. Zhang, Q. Y. Chen, S. H. Xia, "3D Pyramidal Micropool Array Electrode for Amperometric Microsensor", Key Engineering Materials, Vol. 483, pp. 103-107, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: P. Moonsri, S. Watanesk, R. Watanesk, H. Niamsup, Q. Cheng, R.L. Deming
Abstract:Stable silk fibroin (SF) membranes were prepared by modifying SF with polyethylene glycol diglycidyl ether (PEGDE) for use as enzyme...
265
Authors: Xue Jun Zhang, Hai Yan Li, Yan Hong Tian
Abstract:Activated carbon fibers(ACFs) were prepared from general pitch-based carbon fiber by steam activation and catalytic activation method,...
510
Authors: Ya Kun Zhang, Jian Ling Li, Fei Gao, Xin Dong Wang
Abstract:A layer of MnO2 was loaded between the SnO2/Ti substrate and the layer of PANI via a potentiodynamic electrodeposition....
1372
Authors: Camila dos Santos Torres, Tiago Falcade, Célia de Fraga Malfatti
Chapter 2: Ceramics I
Abstract:The use of hydrogen fuel cell for generating electricity is one of the potential solutions to solve the energy crisis problem. Electrolysis...
581
Authors: Zheng Xiao Liu, Jian Fei Xia, Zong Hua Wang, Yan Zhi Xia, Fei Fei Zhang, Lin Hua Xia
Chapter 2: Applications of Materials in Manufacturing Technologies, Materials Science and Engineering
Abstract:A novel composite was firstly synthesized by compositing graphenes (G) and carbon nanotubes (CNTs) and then a new composite modified...
562