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A buckypaper decorated with CoP/Co for nonenzymatic amperometric sensing of glucose
Microchimica Acta ( IF 5.3 ) Pub Date : 2020-01-07 , DOI: 10.1007/s00604-019-4076-3 Chuantao Hou 1 , Xueli Zhang 1 , Lei Wang 1 , Fan Zhang 1 , Xiaolian Huang 1 , Zonghua Wang 1
Microchimica Acta ( IF 5.3 ) Pub Date : 2020-01-07 , DOI: 10.1007/s00604-019-4076-3 Chuantao Hou 1 , Xueli Zhang 1 , Lei Wang 1 , Fan Zhang 1 , Xiaolian Huang 1 , Zonghua Wang 1
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A freestanding and flexible buckypaper modfied with CoP/Co (CoP/Co-BP) is described. It has a sponge-like nanostructure and is shown to enable improved nonenzymatic sensing of glucose. The CoP/Co-BP was prepared by first depositing a uniform layer of ZIF- 67 crystals on BP, followed by two steps of pyrolysis treatment and phosphidation under an argon atmosphere. The morphology and structure of the material were characterized by scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. The electrochemical properties were investigated by cyclic voltammetry and amperometric response. The amperometric sensor, best operated at 0.45 V (vs. SCE) at pH 13 has a linear range that extends from 0.5 μM to 1.8 mM of glucose, a 0.2 μM detection limit (at S/N = 3), and a sensitivity of 6427 μA mM−1 cm−2 in alkaline solution. This is mainly attributed to the synergistic effect between the highly active CoP nanostructure and BP which results in excellent conductivity. The uniformly distributed CoP nanoparticles in the network of BP prevent the formation of close-packed structure and facilitate electron transfer. The sensor has good selectivity and excellent long-term stability. It was applied to the determination of glucose in spiked human serum, and satisfactory results were obtained. Graphical abstract Schematic presentation of a freestanding and flexible buckypaper modfied with CoP/Co. It has a sponge-like nanostructure and exhibits improved catalytic activity toward glucose oxidation. This material was used for high-performance electrochemical glucose sensing. Schematic presentation of a freestanding and flexible buckypaper modfied with CoP/Co. It has a sponge-like nanostructure and exhibits improved catalytic activity toward glucose oxidation. This material was used for high-performance electrochemical glucose sensing.
中文翻译：
一种用 CoP/Co 装饰的巴克纸，用于葡萄糖的非酶促电流检测
描述了一种用 CoP/Co (CoP/Co-BP) 修改的独立且灵活的巴基纸。它具有海绵状纳米结构，并被证明能够改善葡萄糖的非酶促传感。CoP/Co-BP 通过首先在 BP 上沉积均匀的 ZIF-67 晶体层，然后在氩气气氛下进行热解处理和磷化两个步骤来制备。通过扫描电子显微镜、X射线衍射和X射线光电子能谱对材料的形貌和结构进行了表征。通过循环伏安法和电流响应来研究电化学性质。电流传感器在 0.45 V（vs. SCE）和 pH 13 条件下运行最佳，其线性范围从 0.5 μM 扩展到 1.8 mM 葡萄糖，0.2 μM 检测限（S/N = 3），灵敏度为在碱性溶液中为 6427 μA mM−1 cm−2。这主要归因于高活性 CoP 纳米结构和 BP 之间的协同效应，从而产生了优异的导电性。BP 网络中均匀分布的 CoP 纳米粒子可防止形成密堆积结构并促进电子转移。该传感器具有良好的选择性和优异的长期稳定性。将其应用于加标人血清中葡萄糖的测定，取得了满意的结果。用 CoP/Co 修改的独立且灵活的巴基纸的图形摘要示意图。它具有海绵状纳米结构，对葡萄糖氧化具有更高的催化活性。该材料用于高性能电化学葡萄糖传感。用 CoP/Co 修改的独立且灵活的巴克纸的示意图。它具有海绵状纳米结构，对葡萄糖氧化具有更高的催化活性。该材料用于高性能电化学葡萄糖传感。
更新日期：2020-01-07
中文翻译：
一种用 CoP/Co 装饰的巴克纸，用于葡萄糖的非酶促电流检测
描述了一种用 CoP/Co (CoP/Co-BP) 修改的独立且灵活的巴基纸。它具有海绵状纳米结构，并被证明能够改善葡萄糖的非酶促传感。CoP/Co-BP 通过首先在 BP 上沉积均匀的 ZIF-67 晶体层，然后在氩气气氛下进行热解处理和磷化两个步骤来制备。通过扫描电子显微镜、X射线衍射和X射线光电子能谱对材料的形貌和结构进行了表征。通过循环伏安法和电流响应来研究电化学性质。电流传感器在 0.45 V（vs. SCE）和 pH 13 条件下运行最佳，其线性范围从 0.5 μM 扩展到 1.8 mM 葡萄糖，0.2 μM 检测限（S/N = 3），灵敏度为在碱性溶液中为 6427 μA mM−1 cm−2。这主要归因于高活性 CoP 纳米结构和 BP 之间的协同效应，从而产生了优异的导电性。BP 网络中均匀分布的 CoP 纳米粒子可防止形成密堆积结构并促进电子转移。该传感器具有良好的选择性和优异的长期稳定性。将其应用于加标人血清中葡萄糖的测定，取得了满意的结果。用 CoP/Co 修改的独立且灵活的巴基纸的图形摘要示意图。它具有海绵状纳米结构，对葡萄糖氧化具有更高的催化活性。该材料用于高性能电化学葡萄糖传感。用 CoP/Co 修改的独立且灵活的巴克纸的示意图。它具有海绵状纳米结构，对葡萄糖氧化具有更高的催化活性。该材料用于高性能电化学葡萄糖传感。
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