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Effect of phosphate buffer saline solution on the performance of zinc oxide thin film surface electrodes using electrochemical detection for glucose biosensor

机译:磷酸盐缓冲盐溶液对葡萄糖生物传感器电化学检测氧化锌薄膜表面电极性能的影响

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摘要

Zinc oxide is material compatible for biosensors, which has good properties such as low cost, high stability and wide band gap. Aim of this experiment is to study the effect of variations concentration of phosphate buffered saline solution on the performance of zinc oxide thin film as a glucose biosensor. A Zinc oxide thin film was fabricated by direct current (DC) sputtering coating method on the indium thin film glass substrate, with 20 Watt electric power and 2mTorr argon gas pressure. Characterization used XRD to determine the crystalline phase, The Zinc oxide thin film is characterized by a cyclic voltammetry (CV) with scan rate of 5mV/s and different concentration phosphate buffered saline solution. A wurtzite structure of Zinc oxide has been acquired the crystal size 233 nm by using debye scherer equation (rietvield method) and optical band gap obtained 3.17 eV.
机译:氧化锌是对生物传感器相容的材料,其具有良好的性能,例如低成本,高稳定性和宽带隙。 该实验的目的是研究磷酸盐缓冲盐水溶液变化浓度对氧化锌薄膜作为葡萄糖生物传感器的性能的影响。 通过在铟薄膜玻璃基板上通过直流(DC)溅射涂布方法制造氧化锌薄膜,具有20瓦电力和2mTorr氩气压。 使用XRD的表征以确定结晶相,氧化锌薄膜的特征在于循环伏安法(CV),扫描速率为5mV / s和不同浓度的磷酸盐缓冲盐水溶液。 通过使用Deybe Scherer方程(Rietvield方法)和光带隙获得了3.17eV的光学带隙已经获得了氧化锌的紫零结构。

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