生物传感器
检出限
电化学
氧化铟锡
电极
纳米材料
铂纳米粒子
纳米团簇
铂金
材料科学
纳米技术
纳米复合材料
化学
色谱法
有机化学
催化作用
物理化学
作者
Lei Sun,Qimeng Wang,Zairan Luo,Xuefeng Mao,Xiujuan Wei,Miaohui Li,Xiaoyan Qiu,Xiaojun Chen,Wenzhong Yang,Hui Xu
标识
DOI:10.1016/j.microc.2023.109265
摘要
Rational design of non-enzymatic nanomaterials that possess the similar functions to natural enzymes holds great promise in chemical and biological molecule detection. In this work, a non-enzymatic electrochemical biosensor for detection of glucose was developed based on poly(2-vinylpyridine) (P2VP) grafted UiO-66 metal organic framework decorated with ultrafine platinum nanoclusters (PtNCs). The as-fabricated UiO-66-g-P2VP/PtNCs nanocomposite was then placed on an indium tin oxide (ITO) electrode to construct non-enzymatic glucose biosensor for electrochemical detection of glucose in alkaline electrolyte. The resulting UiO-66-g-P2VP/PtNCs/ITO modified electrode showed two linear responses over glucose concentration ranging of 0.01–5 mM and 5–18 mM with a low detection limit of 2.18 μM (S/N = 3). Moreover, the UiO-66-g-P2VP/PtNCs/ITO serving as an electrochemical biosensor was successfully applied to the rapid determination of glucose in human serum sample with a desirable result. Our findings pave the way for design and development of a promising artificial enzyme for the construction of high performance sensing platform.
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