title: Nucleotide/Tb³⁺ coordination polymer nanoparticles as luminescent sensor and scavenger for nitrite ion.
abstract: Newly emerged metal organic coordination polymers have aroused the great interest in designing tailored functional materials. In this study, multiple functional components, luminescent Tb(3+) ion, nucleobase and antenna molecule, were integrated in a single material and prepared into a responsive nanoparticle for nitrite. The terbium coordination polymer nanoparticles made of this kind of material have the dual functions of recognition and transduction and obey a preset sensing mechanism without a post-functionalization of common materials. As the result of the tailored, the terbium coordination polymer nanoparticles are highly sensitive and selective to nitrite by means of Dexter energy transfer between Tb(3+) ion and nitrite, and can be used for the scavenger for nitrite in aqueous solution. The detection limit, dynamic range and removal capacity of U-Tb-OBBA CPNPs for nitrite are 0.3 µM, 0.3-470 µM and 4.44 mg per gram of particles, respectively. Metal organic coordination polymers show an attractive potential in constructing smart sensing materials.
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China.
authors.forename: Zewan
authors.initials: Z
authors.lastname: Qi
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China.
authors.forename: Qi
authors.initials: Q
authors.lastname: You
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, 210096, PR China. Electronic address: yc@seu.edu.cn.
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
mesh_terms: D049449:Luminescence; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles; D009573:Nitrites / Q000737:chemistry*; D009711:Nucleotides / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013725:Terbium / Q000737:chemistry*
chemical_list: D009573:Nitrites; D009711:Nucleotides; D011108:Polymers; D013725:Terbium
keywords: Coordination polymer nanoparticles; Fluorescent sensing; Nitrite; Scavenger; Terbium