Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities

Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities

ZnO nanowire arrays were grown on a Si (100) substrate using the vapor-liquid-solid (VLS) method. ZnO nanowires were characterized by XRD, SEM, bright field TEM, and EDS. They were found to have a preferential orientation along the c-axis. The as-prepared sample was functionalized with glucose oxida...

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Main Authors: Jessica Weber, Sathyaharish Jeedigunta, Ashok Kumar
Format: Article
Language:English
Published: Hindawi Limited 2008-01-01
Series:Journal of Nanomaterials
Online Access:http://dx.doi.org/10.1155/2008/638523
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spelling doaj-65f5a91e644945faa55d2ce45684b0042020-11-24T23:55:31ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292008-01-01200810.1155/2008/638523638523Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing CapabilitiesJessica Weber0Sathyaharish Jeedigunta1Ashok Kumar2Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USANanomaterials and Nanomanufacturing Research Center, University of South Florida, Tampa, FL 33620, USADepartment of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USAZnO nanowire arrays were grown on a Si (100) substrate using the vapor-liquid-solid (VLS) method. ZnO nanowires were characterized by XRD, SEM, bright field TEM, and EDS. They were found to have a preferential orientation along the c-axis. The as-prepared sample was functionalized with glucose oxidase by physical adsorption. FTIR was taken before and after functionalization to verify the presence of the attached enzyme. Electrochemical measurements were performed on the nanowire array by differential pulse voltammetry in the range of −0.6 to 0.4 V. The nanoarray sensor displayed high sensitivity to glucose in the range of 1.0 ×10−4 to 1.0 ×10−2 mol L−1.http://dx.doi.org/10.1155/2008/638523
collection DOAJ
language English
format Article
sources DOAJ
author Jessica Weber
Sathyaharish Jeedigunta
Ashok Kumar
spellingShingle Jessica Weber
Sathyaharish Jeedigunta
Ashok Kumar
Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
Journal of Nanomaterials
author_facet Jessica Weber
Sathyaharish Jeedigunta
Ashok Kumar
author_sort Jessica Weber
title Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
title_short Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
title_full Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
title_fullStr Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
title_full_unstemmed Fabrication and Characterization of ZnO Nanowire Arrays with an Investigation into Electrochemical Sensing Capabilities
title_sort fabrication and characterization of zno nanowire arrays with an investigation into electrochemical sensing capabilities
publisher Hindawi Limited
series Journal of Nanomaterials
issn 1687-4110
1687-4129
publishDate 2008-01-01
description ZnO nanowire arrays were grown on a Si (100) substrate using the vapor-liquid-solid (VLS) method. ZnO nanowires were characterized by XRD, SEM, bright field TEM, and EDS. They were found to have a preferential orientation along the c-axis. The as-prepared sample was functionalized with glucose oxidase by physical adsorption. FTIR was taken before and after functionalization to verify the presence of the attached enzyme. Electrochemical measurements were performed on the nanowire array by differential pulse voltammetry in the range of −0.6 to 0.4 V. The nanoarray sensor displayed high sensitivity to glucose in the range of 1.0 ×10−4 to 1.0 ×10−2 mol L−1.
url http://dx.doi.org/10.1155/2008/638523
work_keys_str_mv AT jessicaweber fabricationandcharacterizationofznonanowirearrayswithaninvestigationintoelectrochemicalsensingcapabilities
AT sathyaharishjeedigunta fabricationandcharacterizationofznonanowirearrayswithaninvestigationintoelectrochemicalsensingcapabilities
AT ashokkumar fabricationandcharacterizationofznonanowirearrayswithaninvestigationintoelectrochemicalsensingcapabilities
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