Abstract In this work, we have proposed a proper method to fabricate porous Cu nanostructured electrodes for non-enzymatic glucose detection. The glancing angle deposition (GLAD) has been used to produce Cu nanostructures on the FTO substrates. To optimize the sensing performance of the electrode, the effects of vapor deposition angle and azimuthal substrate rotation speed have been investigated. As a result, the superior electrocatalitic activity is obtained under the deposition angle of θ = 82° and the substrate rotation speed of φ = 20 rpm, respectively. By controlling the GLAD deposition parameters, an excellent sensing performance against glucose with a high sensitivity of 1862 μAcm−2 mM−1, a low detection limit of 0.048 μM and two wide linear ranges of detection of 10 μM–2 mM and 2–8 mM have been achieved at the applied potential of 0.5 V. Considering the high selectivity, excellent reproducibility and accurate measuring of the glucose levels in human serums, the proposed Cu-based sensor has a remarkable potential for large-scale production as a non-enzymatic glucometer.

中文翻译：

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通过掠射角沉积制造的铜柱状纳米结构作为高灵敏度非酶葡萄糖检测的稳健且可扩展的方法

摘要 在这项工作中，我们提出了一种合适的方法来制造用于非酶促葡萄糖检测的多孔 Cu 纳米结构电极。掠射角沉积 (GLAD) 已用于在 FTO 基板上生产 Cu 纳米结构。为了优化电极的传感性能，已经研究了气相沉积角度和方位角基板旋转速度的影响。结果，分别在 θ = 82° 的沉积角和 φ = 20 rpm 的基板旋转速度下获得了优异的电催化活性。通过控制 GLAD 沉积参数，对葡萄糖具有出色的传感性能，具有 1862 μAcm-2 mM-1 的高灵敏度、0.048 μM 的低检测限和 10 μM-2 mM 和 2-8 的两个宽检测线性范围已在 0.5 V 的施加电位下达到 mM。