Rotor orientation direction controls geometric curvature and chirality for assemblies of motor amphiphiles in water  

作　　者：Yun-Han Yang Yang Qin Yang Zhang Ling Zhang 

机构地区：[1]PCFM Lab and GDHPRC Lab,School of Chemistry,Sun Yat-Sen University,Guangzhou,China

出　　处：《Aggregate》2023年第2期237-246,共10页聚集体（英文）

基　　金：Science and Technology Program of Guangzhou,Grant/Award Number:201804010017;National Natural Science Foundation of China,Grant/Award Number:21374137;Natural Science Foundation of Guangdong Province,Grant/Award Number:2014A030313194;Science and Technology Program of Guangdong Province,Grant/Award Number:2017A050506021。

摘　　要：Control over geometric curvature and chirality of assemblies in pure aqueous media is key to the design of responsive materials and molecular machines.Here we show how aggregate geometric curvature and chirality of motor amphiphiles could be switched from bicontinuous calabashes to nanoribbons or from vesicles to nanoribbons by modulating rotor orientation direction with dual light/heat stimuli to influence spontaneous curvature in assemblies.The photoisomerization and thermal helix inversion processes of molecular motors have been studied at the molecular level,and the transformation of supramolecular assemblies has been investigated at the microscopic level.The morphological evolution of the calabash-shaped assembly can be kinetically captured,suggesting that the bicontinuous calabash-shaped structures are different from the bowl-shaped aggregates based on solvent-driven assembly upon the addition of non-solvent or solvent.The investigation of dual optical/thermal control of rotor orientation can provide a new strategy for tuning the geometric curvature and chirality of nanoassemblies at the nanoscale,arriving ultimately the clusteroluminescence through-space electronic communication at responsive supramolecular nanosystems.

关 键 词：aqueous media chiral control curvature control dynamic assemblies molecular motor rotor orientation direction 

分 类 号：O63[理学—高分子化学]