ZnO thin film as MSG for sensitive biosensor

4th ModTech International Conference - Modern Technologies in Industrial Engineering

Iftimie, N.^1 ; Savin, A.^1 ; Steigmann, R.^1,2 ; Faktorova, D.^3 ; Salaoru, I.^4

Nondestructive Testing Department, National Institute of RandD for Technical Physics, Iasi, Romania^1

Faculty of Physics, Alexandru Ioan Cuza University, Iasi, Romania^2

Department of Measurement and Applied Electrical Engineering, University of ilina, ilina, Slovakia^3

WMG, University of Warwick, Coventry, United Kingdom^4

关键词: Cholesterol oxidase;    Evanescent wave;    ITO/glass substrates;    Metallic strip gratings;    Sensing characteristics;    Sub-wavelength;    Vacuum thermal evaporation;    Zinc oxide (ZnO);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/145/4/042030/pdf
DOI  :  10.1088/1757-899X/145/4/042030

来源: IOP

【 摘 要 】

In this paper, we investigate the cholesterol sensors consisting of a mixture of cholesterol oxidase (ChOx) and zinc oxide (ZnO) nanoparticles were grown on ITO/glass substrates by vacuum thermal evaporation method and their sensing characteristics are examined in air. Also, the interest in surface waves appeared due to evanescent waves in the metallic strip grating in sub-wavelength regime. Before testing the transducer with metamaterials lens in the sub-wavelength regime, a simulation of the evanescent wave's formation has been performed at the edge of Ag strips, with thicknesses in the range of micrometers.