title: A luminescent lanthanide coordination polymer based on energy transfer from metal to metal for hydrogen peroxide detection.
abstract: A bimetal lanthanide coordination polymer nanoparticle (ATP-Ce/Tb-Tris CPNs) with good biocompatibility was synthesized in Tris-HCl buffer using adenosine triphosphate (ATP) molecules as the bridge ligands. The large absorption cross section and suitable emission energy of Ce3+matching to the adsorption energy of Tb3+(4fn) results in the efficient energy transfer from Ce3+to Tb3+, thus the synthesized ATP-Ce/Tb-Tris CPNs exhibit the characteristic green emission of Tb3+. Such energy transfer from metal to metal in fluorescent lanthanide coordination polymer nanoparticles (Ln-CPNs) has been demonstrated. It is found that the oxidation of Ce3+in ATP-Ce/Tb-Tris CNPs to Ce4+would interrupt the energy transfer from Ce3+to Tb3+, leading to fluorescence quenching of Tb3+. On the basis of this quenching mechanism, ATP-Ce/Tb-Tris CPNs has been successfully used to detect reactive oxygen H2O2with detection limit as low as 2nM. If glucose oxidase is present in the system, glucose can be determined using the ATP-Ce/Tb-Tris CNPs nanosensor.
authors.affiliation: Department of Chemistry, Nanchang University, Nanchang 330031, China; Department of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, China.
authors.forename: Hui-Hui
authors.initials: HH
authors.lastname: Zeng
authors.affiliation: Department of Chemistry, Nanchang University, Nanchang 330031, China.
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.affiliation: Department of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, China.
authors.forename: Lian-Qing
authors.initials: LQ
authors.lastname: Rong
authors.affiliation: Department of Chemistry, Nanchang University, Nanchang 330031, China. Electronic address: rpliang@ncu.edu.cn.
authors.forename: Ru-Ping
authors.initials: RP
authors.lastname: Liang
authors.affiliation: Department of Chemistry, Nanchang University, Nanchang 330031, China; Department of Materials and Chemical Engineering, Pingxiang University, Pingxiang 337055, China. Electronic address: jdqiu@ncu.edu.cn.
authors.forename: Jian-Ding
authors.initials: JD
authors.lastname: Qiu
mesh_terms: D000255:Adenosine Triphosphate / Q000737:chemistry; D015374:Biosensing Techniques / Q000379:methods; D001786:Blood Glucose / Q000032:analysis*; D002563:Cerium / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry*; D004735:Energy Transfer; D005456:Fluorescent Dyes / Q000737:chemistry*; D005949:Glucose Oxidase / Q000737:chemistry; D006801:Humans; D006861:Hydrogen Peroxide / Q000032:analysis*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D057230:Limit of Detection; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D011108:Polymers / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods; D013725:Terbium / Q000737:chemistry
chemical_list: D001786:Blood Glucose; D056831:Coordination Complexes; D005456:Fluorescent Dyes; D028581:Lanthanoid Series Elements; D011108:Polymers; D013725:Terbium; D002563:Cerium; D000255:Adenosine Triphosphate; D006861:Hydrogen Peroxide; D005949:Glucose Oxidase
keywords: ATP; Energy transfer; Fluorescence probe; Glucose detection; H(2)O(2) detection; Self-assemble