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

Jessica Weber, Sathyaharish Jeedigunta, Ashok Kumar
2008 Journal of Nanomaterials  
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 thec-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
more » ... re array by differential pulse voltammetry in the range of−0.6to 0.4 V. The nanoarray sensor displayed high sensitivity to glucose in the range of 1.0×10−4to 1.0×10−2 molL−1.
doi:10.1155/2008/638523 fatcat:lf4t24plzveghlds4aijacsr7e