title: Switchable sensitizers stepwise lighting up lanthanide emissions.
abstract: Analagous to a long-ranged rocket equipped with multi-stage engines, a luminescent compound with consistent emission signals across a large range of concentrations from two stages of sensitizers can be designed. In this approach, ACQ, aggregation-caused quenching effect of sensitizers, would stimulate lanthanide emission below 10(-4) M, and then at concentrations higher than 10(-3) M, the "aggregation-induced emission" (AIE) effect of luminophores would be activated with the next set of sensitizers for lanthanide emission. Simultaneously, the concentration of the molecules could be monitored digitally by the maximal excitation wavelengths, due to the good linear relationship between the maximal excitation wavelengths and the concentrations {lg(M)}. This model, wherein molecules are assembled with two stages (both AIE and ACQ effect) of sensitizers, may provide a practicable strategy for design and construction of smart lanthanide bioprobes, which are suitable in complicated bioassay systems in which concentration is variable.
authors: 1] New Materials R&D Center, Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China [2] Key Laboratory of Science and Technology on High Energy Laser, Si Chuan Research Center of New Materials, Chengdu, Sichuan 610207, China.
authors: Yan
authors: Y
authors: Zhang
authors: 1] New Materials R&D Center, Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China [2] Key Laboratory of Science and Technology on High Energy Laser, Si Chuan Research Center of New Materials, Chengdu, Sichuan 610207, China.
authors: Peng-Chong
authors: PC
authors: Jiao
authors: 1] New Materials R&D Center, Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China [2] Key Laboratory of Science and Technology on High Energy Laser, Si Chuan Research Center of New Materials, Chengdu, Sichuan 610207, China.
authors: Hai-Bing
authors: HB
authors: Xu
authors: 1] New Materials R&D Center, Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China [2] Key Laboratory of Science and Technology on High Energy Laser, Si Chuan Research Center of New Materials, Chengdu, Sichuan 610207, China.
authors: Ming-Jing
authors: MJ
authors: Tang
authors: College of Chemistry and Materials Engineering, WenZhou University, Wenzhou, Zhejiang 325035, China.
authors: Xiao-Ping
authors: XP
authors: Yang
authors: College of Chemistry and Materials Engineering, WenZhou University, Wenzhou, Zhejiang 325035, China.
authors: Shaoming
authors: S
authors: Huang
authors: 1] New Materials R&D Center, Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China [2] Key Laboratory of Science and Technology on High Energy Laser, Si Chuan Research Center of New Materials, Chengdu, Sichuan 610207, China.
authors: Jian-Guo
authors: JG
authors: Deng
mesh_terms: D018360:Crystallography, X-Ray; D028581:Lanthanoid Series Elements / Q000737:chemistry*
chemical_list: D028581:Lanthanoid Series Elements