In this paper, vertically aligned electrochemically reduced graphene oxide-diphenylalanine (VA-ErGOFF) network was directly prepared at glassy carbon (GC) electrode’s surface from graphene oxidediphenylalanine (GO-FF) dispersions by using a pulsed electrodeposition technique. Theelectrochemical experiments and scanning electron microscopy revealed properties in VA-ErGO-FFnetwork. Model molecule hemoglobin was further fastened onto VA-ErGO-FF network to constructelectrochemical nitromethane (CH3NO2) amperometric biosensors. Electrochemical results revealed thathemoglobin in the VA-ErGO-FF network retained its bioactivity, showing two quasi-reversible redoxpeaks and high bioelectrocatalytic activity to CH3NO2. Biosensor indicated extensive linear responsescope as 1.0 × 10-6- 5.0 × 10-4 mol L-1in optimum circumstances, corresponding to low detection limitas 5.0 × 10-7 mol L-1. It had been found VA-ErGO-FF network is a promising platform with brightprospects in the application of electrochemical biosensor for extraordinary biocompatibility as well asfavorable charge-transfer capability..
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机译：在本文中，通过使用脉冲电沉积技术，在玻璃碳（GC）电极的表面上直接制备垂直对准的电化学还原的石墨烯氧化物 - 二苯基丙氨酸（VA-ERGOFF）网络。电化学实验与扫描电子显微镜显示在VA-ERGO-FFNETWORK中的特性。模型分子血红蛋白进一步固定在VA-ERGO-FF网络上，以构建电化学硝基甲烷（CH 3 NO 2）凹凸生物传感器。电化学结果显示，VA-ERGO-FF网络中的半球蛋白保留其生物活性，显示出两种准可逆的氧化氧曝光和高生物电催化活性至CH 3 NO 2。生物传感器指示广泛的线性响应镜为1.0×10-6-5.0×10-4 mol L-1IN最佳情况，对应于低检测限制5.0×10-7 mol L-1。它已被发现VA-ERGO-FF网络是一个有前途的平台，具有在应用电化学生物传感器以实现非凡的生物相容性以及可燃烧的电荷转移能力。
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