Self-healable,Eu^(3+)-based polymeric gels containing terpyridyl groups with tunable luminescence based on ion recognition

Novel luminescent materials that change their emission colors in responding to external stimuli have attracted increasing attentions in the past decades.Herein,we report the preparation of a novel kind of Eu3+-based polymeric organogel with three networks.With dynamic coordination interactions,the organogel shows fast self-healing and adjustable fluorescent emission properties in the presence of different metal ions via coordination interaction competition effect.Dynamic coordination interaction also endows the gel with multiple stimuli-responsive properties such as water,base and acid.The multistimuli responsive fluorochromic organogel demonstrates a new way of preparing optical materials and bio-relevant sensors.