From MOF membrane to 3D electrode: a new approach toward an electrochemical non-enzymatic glucose biosensor
From MOF membrane to 3D electrode: a new approach toward an electrochemical non-enzymatic glucose biosensor
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从 MOF 膜到 3D 电极：电化学非酶葡萄糖生物传感器的新方法
DOI：
10.1007/s10853-017-1349-2
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发表时间：
2017-07
影响因子：
4.5
通讯作者：
Kang Zixi
中科院分区：
文献类型：
--
作者：
Zhou Yan;Li Jie;Wang Sasa;Zhang Jingtong;Kang Zixi
通过对Ni 2（L-asp）2bipy MOF膜进行退火处理，制备了三维氧化镍（NiO）催化电极，并将其应用于电化学葡萄糖传感器。这种三维自支撑的MOF膜前驱体具有均匀的多孔结构，并首次用于制备三维NiO电极。SEM和XRD结果表明，NiO在Ni网上均匀分布，并由Ni 2（L-asp）2bipy完全转变为NiO。该催化电极采用计时电流法，线性范围高达400 μM，灵敏度高达478.9 μA mM−1cm− 2，检测下限为4.34 μM。尿酸、尿素和抗坏血酸对葡萄糖的测定干扰可忽略不计。这种电极的优异性能归因于NiO在Ni基体上的均匀分布、电子从Ni基体直接转化到电化学活性NiO以及这种电极设计的多孔性。
A three-dimensional (3D) nickel oxide (NiO) catalytic electrode was fabricated by annealing Ni2(L-asp)2bipy MOF membrane and was subsequently applied for electrochemical glucose sensor. This 3D self-supported MOF membrane precursor provided uniform and porous architecture, and it was used for fabricating 3D NiO electrode in the first time. The SEM and XRD data showed that the NiO was evenly distributed on Ni mesh and complete transformation from Ni2(L-asp)2bipy to NiO. This catalytic electrode, using a chronoamperometric approach, demonstrated linear range up to 400 μM with high sensitivity of 478.9 μA mM−1cm−2and low limit of detection of 4.34 μM. Uric acid, urea and ascorbic acid showed negligible interferences to the detection of glucose. The excellent performance of this electrode was attributed to the uniformly distributed NiO on the Ni substrate, direct electron transformation from Ni substrate to electrochemical active NiO and the porosity of such electrode design.
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DOI：
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发表时间：
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期刊：
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