A novel supramolecular assembly based on nor-seco-cucurbit[10]uril for spermine sensing and artificial light-harvesting  

作　　者：Ran Cen Yan-Yan Tang Li-Xia Chen Zhu Tao Xin Xiao 

机构地区：[1]National Key Laboratory of Green Pesticide,State Key Laboratory of Green Pesticide and Agricultural Bioengineering,Ministry of Education,Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province,Guizhou University,Guiyang 550025,China

出　　处：《Chinese Chemical Letters》2025年第1期262-266,共5页中国化学快报(英文版)

基　　金：support of the National Natural Science Foundation of China(No.22361011)。

摘　　要：A supramolecular assembly composed of perylene diimide derivative(PDI-nm)and nor-secocucurbit[10]uril(ns-Q[10])was designed.The excellent host-guest interaction between PDI-nm and nsQ[10]prevented the aggregation-caused quenching(ACQ)effect of PDI-nm,resulting in a luminescent assembly.The addition of spermine to the PDI-nm/ns-Q[10]assembly restored the ACQ of PDI-nm due to the competitive binding of spermine to ns-Q[10],which released PDI-nm.The assembly based on this principle showed ultra-high sensitivity for the detection of spermine with a detection limit as low as7.84×10^(-7)mol/L in aqueous solution and 3.69×10^(-7)mol/L in plasma solution.Moreover,an artificial light-harvesting system based on this assembly was proposed,benefiting from its good luminescent performance.Nile red(Ni R)functioned as an acceptor loaded into assembly,and a highly efficient energy transfer process occurred from PDI-nm/ns-Q[10]to Ni R,with an efficiency up to 87%.

关 键 词：uril Perylene diimide derivative SPERMINE LIGHT-HARVESTING 

分 类 号：O62[理学—有机化学]