文献类型：期刊文献

英文题名：Encapsulating Cu nanoparticles into metal-organic frameworks for nonenzymatic glucose sensing

作者：Shi, Libo[1];Zhu, Xiang[1];Liu, Tingting[1];Zhao, Hongli[1];Lan, Minbo[1,2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：227

起止页码：583

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20160201799231);WOS:【SCI-EXPANDED(收录号:WOS:000369944200073)】；

基金：This work was financially supported by the National Natural Science Foundation of China (NSFC, no. 21305044), and the Science and Technology Commission of Shanghai Municipality (STCSM, no. 13510710900).

语种：英文

外文关键词：Metal-organic frameworks; Cu nanoparticles; Glucose sensor; Nonenzymatic; Stability

摘要：In this work, we applied metal-organic frameworks (MOFs) as a porous matrix to encapsulate Cu nanoparticles (NPs) for nonenzymatic glucose sensing in alkaline media. SEM and TEM confirmed that the size of the encapsulated Cu NPs ranges from 2.5 to 5 nm. The hybrid of Cu NPs encapsulated in ZIF-8 (Cu-in-ZIF-8) was further modified onto screen-printed electrodes for nonenzymatic sensing of glucose in alkaline medium. The porous structure of ZIF-8 are beneficial for the unimpeded diffusion of glucose and reaction product. And as a matrix for encapsulating Cu NPs, ZIF-8 also protect the Cu NPs from dissolution and agglomeration during the electrocatalytic process. For comparison, the electrochemical performance of Cu NPs loaded on ZIF-8 (Cu-on-ZIF-8) was also investigated and it is found that Cu-in-ZIF-8 exhibited higher activity and better stability for cyclic test toward the oxidation of glucose in alkaline media. Additionally, Cu-in-ZIF-8 based glucose sensor also shows a favorable sensitivity and selectivity. (C) 2016 Elsevier B.V. All rights reserved.