文献类型：期刊文献

中文题名：Azobenzene-based ultrathin peptoid nanoribbons for the potential on highly efficient artificial light-harvesting

作者：Zichao Sun[1];Lingrong Zhu[1];Jingze Liu[1];Fan Liu[1];Pengchao Wu[1];Pengliang Sui[1];Haibao Jin[1];Shaoliang Lin[1]

机构：[1]Shanghai Key Laboratory of Advance Polymeric Materials,Frontiers Science Center for Materiobiology and Dynamic Chemistry,School of Materials Science and Engineering,East China University of Science and Technology,Shanghai 200237,China

年份：2024

卷号：67

期号：5

起止页码：1680

中文期刊名：Science China Chemistry

外文期刊名：中国科学（化学英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；PubMed;

基金：supported by the National Natural Science Foundation of China (22001071, 52373114, 52073092, 52325308);Shanghai Scientific and Technological Innovation Project(19JC1411700)。

语种：英文

中文关键词：azobenzene-based peptoid;ultrathin nanoribbon;photo-responsive;light-harvesting;information encryption

摘要：The development of artificial light-harvesting systems based on long-range ordered ultrathin organic nanomaterials(i.e., below3 nm), which were assembled from stimuli-responsive sequence-controlled biomimetic polymers, remains challenging. Herein,we report the self-assembly of azobenzene-containing amphiphilic ternary alternating peptoids to construct photo-responsive ultrathin peptoids nanoribbons(UTPNRs) with a thickness of ~2.3 nm and the length in several micrometers. The pendants hydrophobic conjugate stacking mechanism explained the formation of one-dimensional ultrathin nanostructures, whose thickness was highly dependent on the length of side groups. The photo-isomerization of azobenzene moiety endowed the aggregates with a reversible morphology transformation from UTPNRs to spherical micelles(46.5 nm), upon the alternative irradiation with ultraviolet and visible light. Donor of 4-(2-hydroxyethylamino)-7-nitro-2,1,3-benzoxadiazole(NBD) and acceptor of rhodamine B(RB) were introduced onto the hydrophobic and hydrophilic regions, respectively, to generate photocontrollable artificial light-harvesting systems. Compared with the spheres-based systems, the obtained NBD-UTPNRs@RB composite proved a higher energy transfer efficiency(90.6%) and a lower requirement of RB acceptors in water. A proof-ofconcept use as fluorescent writable ink demonstrated the potential of UTPNRs on information encryption.