title: Tb(3+)-containing supramolecular hydrogels: luminescence properties and reversible sol-gel transitions induced by external stimuli.
abstract: A dual-responsive green-light-emitting supramolecular metal hydrogel (G-gel) was prepared by the reaction of a simple hydrazide-functionalized benzimidazole ligand (L) with Tb(NO3)3. The green luminescence of gelator L is enhanced in the G-gel due to the coordination effect between L and Tb(3+). In addition, the G-gel shows different luminescence when in a semisolid state (gel) and in a solid state (xerogel). Remarkable reversible sol-gel transitions induced by temperature or pH were observed for this G-gel.
authors.affiliation: Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China. wujc@lzu.edu.cn.
authors.forename: Xinxian
authors.initials: X
authors.lastname: Ma
authors.forename: Dawei
authors.initials: D
authors.lastname: Yu
authors.forename: Ning
authors.initials: N
authors.lastname: Tang
authors.forename: Jincai
authors.initials: J
authors.lastname: Wu
mesh_terms: D001562:Benzimidazoles / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D049449:Luminescence; D044367:Phase Transition; D013696:Temperature; D013725:Terbium / Q000737:chemistry*
chemical_list: D001562:Benzimidazoles; D020100:Hydrogels; D013725:Terbium