文献类型：期刊文献

英文题名：Dual-Responsive Ultrathin Polymersomes with Reversible Transitions on Acidochromism and Fluorochromism Performances for Multiple Information Encryption

作者：Sun, Zichao[1];Xu, Zejiang[1];Wu, Pengchao[1];Wang, Liquan[1];Ding, Mingyu[1];Zhao, Lin[1];Zheng, Yongli[2];Zhou, Yongfeng[2];Lin, Shaoliang[1];Jin, Haibao[1]

机构：[1]East China Univ Sci & Technol, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Shanghai 200237, Peoples R China;[2]Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

年份：2025

卷号：64

期号：30

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20252318552224);WOS:【SCI-EXPANDED(收录号:WOS:001499908000001)】；

基金：The financial support was provided by the National Natural Science Foundation of China (52373114, 52325308, and 22231007). The authors thank Research Center of Analysis and Test of East China University of Science and Technology for the help on the structural characterizations.

语种：英文

外文关键词：Acidochromism; Dual-responsive ultrathin polymersomes; Fluorochromism; Multiple information encryption; Self-assembly

摘要：Endowing dual-responsive ultrathin polymersomes (UTPSs) with reversible stimuli-chromic and fluorochromic performances offers a prospective yet challenging strategy for achieving high-level information encryption and anticounterfeiting. Herein, starting from rational synthesis of visible light/pH-responsive integrated azobenzene monomer, side-chain-type amphiphilic alternating azocopolymers were elaborately crafted using a moderate epoxy-amino click-polycondensation. Followed by subsequent solution self-assembly, dual-responsive UTPSs with a diameter of similar to 253 nm and a vesicular thickness of similar to 2.1 nm were subtly produced based on the pendant hydrophobic conjugate stacking mechanism. The photoisomerization of azobenzene units and protonation of tertiary amines within UTPSs were accountable for the visible-light- or pH-triggered reversible shape and physicochemical transitions (i.e., color, size, diameter, vesicular thickness, zeta potential, fluorescent intensity) as well as repeatable acidochromism from yellow to pink and recyclable fluorochromism, respectively. Benefiting from these attractive traits, the proof-of-concept 2D quick response code was meticulously crafted using the stimuli-chromic UTPSs into patterning lithography, showcasing a multilevel decryption, favorable reversibility, and preferable recyclability for advanced information security. Our work provides innovative guidelines for the development of dual-responsive UTPSs with multiple stimuli-chromism merits for the potential of complex information encryption.