A Stable Polyoxometalate‐Pillared Metal–Organic Framework for Proton‐Conducting and Colorimetric Biosensing |
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| Authors: | Dr En‐Long Zhou Prof Chao Qin Dr Peng Huang Prof Xin‐Long Wang Dr Wei‐Chao Chen Dr Kui‐Zhan Shao Prof Zhong‐Min Su |
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| Institution: | Key Laboratory of Polyoxometalate Science of Ministry of Education, Institute of Functional Material Chemistry, Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024 (P. R. China) |
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| Abstract: | A stable metal–organic framework pillared by Keggin‐type polyoxometalate, Cu6(Trz)10(H2O)4H2SiW12O40]?8 H2O (Trz=1,2,4‐triazole) ( 1 ), has been prepared under hydrothermal condition. The 2D layer structure with a 22‐member ring was formed by Cu2+ ions, which are connected with each other via the Trz ligands on the ab plane. Thus, the 2D layers are further interconnected through Keggin polyoxoanions to generate a 3D porous network with a small 1D channel. Moreover, the presence of polyoxoanions make it exhibit selective adsorption of water and proton‐conducting properties. Additionally it showed efficient intrinsic peroxidase‐like activity, providing a simple and sensitive colorimetric assay to detect H2O2. |
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| Keywords: | colorimetric biosensing metal– organic framework polyoxometalates proton conductivity stability |
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