We report the γ-FeO modified exfoliated graphite (γ-FeO@ExGCP) flexible paper electrode as a non-enzymatic glucose sensor. The γ-FeO was physically mixed with exfoliated graphite flakes, and mechanically pressed to get a thin sheet. The amperommetric analysis of γ-FeO@ExGCP electrode shows that the sensor current increases with increasing glucose concentration. The impedance analysis of γ-FeO@ExGCP substantiates the reduction in charge transfer resistance with increasing glucose concentration. The observed values of sensitivity for Ex-GCP and γ-FeO@ExGCP electrodes are 3.51 µA mMcm and 7.1 µA mMcm, respectively. The calculated LOD is 512 μM for γ-FeO@ExGCP. Thus, γ-FeO@ExGCP flexible electrode may be used for non-enzymatic glucose sensor with enhanced sensitivity.

中文翻译：

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γ-Fe2O3改性片状石墨柔性纸基非酶葡萄糖传感器

我们报告了 γ-FeO 改性剥离石墨（γ-FeO@ExGCP）柔性纸电极作为非酶葡萄糖传感器。将γ-FeO与膨胀石墨片物理混合，并机械压制得到薄片。 γ-FeO@ExGCP电极的电流分析表明，传感器电流随着葡萄糖浓度的增加而增加。 γ-FeO@ExGCP 的阻抗分析证实了电荷转移电阻随着葡萄糖浓度的增加而降低。 Ex-GCP 和 γ-FeO@ExGCP 电极的灵敏度观测值分别为 3.51 µA mMcm 和 7.1 µA mMcm。 γ-FeO@ExGCP 的计算 LOD 为 512 μM。因此，γ-FeO@ExGCP柔性电极可用于具有增强灵敏度的非酶葡萄糖传感器。