Recent Advances in Activatable Probes for Molecular Imaging by Stimuli-Controlled Disassembly  

作　　者：Weijing Huang Yanling Yang Deju Ye 

机构地区：[1]State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Centre of Chemistry for Life Sciences,Nanjing University,163 Xianlin Road,Nanjing,Jiangsu 210023,China

出　　处：《Chinese Journal of Chemistry》2023年第18期2382-2399,共18页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(22137003 and 21922406);Natural Science Foundation of Jiangsu Province(BK20200301 and BK20190055);the Fundamental Research Funds for the Central Universities(020514380251)are acknowledged.

摘　　要：Comprehensive Summary,Stimuli-controlled disassembly process has shown promise to direct delivery of probes and/or spatial-temporally control imaging signals for molecular imaging in vivo.Via the disassembly process,well defined nanoprobes with a stimulus-responsive moiety can be controllably converted into small-molecular imaging agents in response to a stimulus,leading to a switch in imaging signals.Moreover,the on-site released small-molecule probes could enhance penetration into the deep tissue for improved imaging of deep-seated molecular targets.Therefore,such a stimuli-controllable disassembly approach has been widely utilized to build activatable molecular imaging probes for the noninvasive detection of various molecular targets in living subjects.In this review article,we first briefly introduce the general principle of stimuli-controlled disassembly.We then summarize the activatable probes based on different internal or external stimulus that has been utilized to control disassembly process.Activatable probes by using multiple stimuli to control cascaded in situ self-assembly and disassembly processes are also discussed.Finally,we close with a conclusion of current challenges and perspective in this field.

关 键 词：Stimuli-controlled disassembly Activatable probes Small-molecular imaging agents SELF-ASSEMBLY Molecular imaging 

分 类 号：O6[理学—化学]