文献类型：期刊文献

英文题名：Efficiently enhancing aqueous fluorescence of diketopyrrolopyrrole-derived dye via facile cucurbit[8]uril inclusion

作者：Xu, Chen[1]; Lin, Xiaohan[1]; Ma, Xiang[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Key Lab Adv Mat, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn, Meilong Rd 130, Shanghai 200237, Peoples R China

年份：2023

卷号：216

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20231713952564);WOS:【SCI-EXPANDED(收录号:WOS:000983859900001)】；

基金：The authors gratefully acknowledge the financial support from the National Key Research and Development Program of China (2022YFB3203500) , the National Natural Science Foundation of China (NSFC 21788102, 2212500537, and 22020102006) , Project supported by Shanghai Municipal Science and Technology Major Project (Grant No. 2018SHZDZX03) , Program of Shanghai Academic/Technology Research Leader (20XD1421300) , and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Aqueous dyes; Fluorescence enhancement; Diketopyrrolopyrrole; Supramolecular assembly; Hydrogen bond interaction

摘要：Highly emissive fluorescent dyes play an essential role in fluorescence imaging technology and fluorescence spectrometry and have been widely applied in biochemical and environmental science. However, due to the insoluble nature of most organic dyes and low luminous efficiency in water, highly emissive aqueous dyes need to be developed. In this work, a one-step supramolecular strategy was designed, which significantly raised aqueous quantum yields from 3.9% to 46.9% utilizing the designed diketopyrrolopyrrole (DPP) derived dye (DPP-BrBP) to bind with cucurbit[8]uril (CB[8]). The conformation of assembly was proved as quaternary pseudorotane and aggregates of assembly were observed as spherical supramolecular nanoparticals. Supramo-lecular interactions and mechanism of the effective enhancement of fluorescence were well demonstrated. Be-sides, self-assembly and intramolecular Fo center dot rster resonance energy transfer of DPP-BrBP were proved and would exhibit brighter fluorescence with higher concentration. This strategy is valuable for development of aqueous optical materials.