title: A Stable Polyoxometalate-Pillared Metal-Organic Framework for Proton-Conducting and Colorimetric Biosensing.
abstract: A stable metal-organic framework pillared by Keggin-type polyoxometalate, Cu6 (Trz)10 (H2O)4 [H2 SiW12 O40 ]⋅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 Cu(2+) 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 .
authors.affiliation: 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).
authors.forename: En-Long
authors.initials: EL
authors.lastname: Zhou
authors.affiliation: 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). qinc703@nenu.edu.cn.
authors.forename: Chao
authors.initials: C
authors.lastname: Qin
authors.affiliation: 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).
authors.forename: Peng
authors.initials: P
authors.lastname: Huang
authors.affiliation: 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). wangxl824@nenu.edu.cn.
authors.forename: Xin-Long
authors.initials: XL
authors.lastname: Wang
authors.affiliation: 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).
authors.forename: Wei-Chao
authors.initials: WC
authors.lastname: Chen
authors.affiliation: 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).
authors.forename: Kui-Zhan
authors.initials: KZ
authors.lastname: Shao
authors.affiliation: 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). zmsu@nenu.edu.cn.
authors.forename: Zhong-Min
authors.initials: ZM
authors.lastname: Su
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D003124:Colorimetry / Q000379:methods*; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007477:Ions / Q000737:chemistry*; D008958:Models, Molecular; D017973:Tungsten Compounds / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D056831:Coordination Complexes; D007477:Ions; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates
keywords: colorimetric biosensing; metal-organic framework; polyoxometalates; proton conductivity; stability