文献类型：期刊文献

英文题名：Ratiometric Indicator Based on Vibration-Induced Emission for in Situ and Real-Time Monitoring of Gelation Processes

作者：Sun, Guangchen[1];Zhou, Haitao[1];Liu, Yang[1];Li, Yiru[1];Zhang, Zhiyun[2];Mei, Ju[1];Su, Jianhua[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Inst Fine Chem, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan

年份：2018

卷号：10

期号：23

起止页码：20205

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20182205245380);WOS:【SCI-EXPANDED(收录号:WOS:000435525100101)】；

基金：This work is financially supported by the Programme of Introducing Talents of Discipline to Universities (B16017), NSFC/China (21604023, 21790361, 21421004) and the Fundamental Research Funds for the Central Universities (222201714011, 222201717003) and sponsored by the Shanghai Sailing Program (16YF1402200).

语种：英文

外文关键词：fluorescent visualizer; ratiometric indicator; low-molecular-weight gelator; vibration-induced emission; gelation process

摘要：Monitoring specific processes such as gelation in a ratiometric and visual manner is of scientific value and has practical implications but remains challenging. Herein, an innovative fluorescent low-molecular-weight gelator (DPAC-CHOL) capable of revealing and self-revealing the gelation processes in situ and in real time via the ratiometric fluorescence change from orange-red to blue has been developed. By virtue of its vibration-induced emission attribute, the gelation point, critical gelation concentration, and the internal stiffness of the gel networks of DPAC-CHOL and other gelation systems could be facilely evaluated in a ratiometric and naked-eye-observable fashion. Noteworthily, the DPAC-CHOL-doped gelation system Ph-CHOL can quantitatively identify the environmental temperature in a daily-concerned range (i.e., 20-55 degrees C). This work not only provides a versatile advanced material but also opens up a new avenue for the investigation of gelation systems.