shuttling rate between trans-PR2 and cis-PR2 induced by molecularisomerization enables a light-gated ion transport, i.e., ON/OFF in situ regulation of transport activity and single-channel current. This work represents an example of using a photoswitchable molecular machine to realize gated ion transport, which demonstrates the value of molecular machines functioning in biomembranes.
受分子机器的非平凡和受控运动的启发,我们报告了一种基于偶氮苯的分子穿梭PR2,它可以跨脂质膜进行光门控离子传输。两亲性和跨膜分子长度使PR2能够插入双层膜并通过冠醚环沿轴的热驱动随机穿梭运动有效地传输 K + (EC 50 =4.1 μ m )。trans- PR2和cis- PR2之间穿梭率的显着差异由分子异构化诱导产生光门控离子传输,即传输活性和单通道电流的开/关原位调节。这项工作代表了使用光开关分子机器实现门控离子传输的一个例子,这证明了分子机器在生物膜中发挥作用的价值。
Photocontrolled Reversible Conversion of Nanotube and Nanoparticle Mediated by β-Cyclodextrin Dimers
作者:He-Lue Sun、Yong Chen、Jin Zhao、Yu Liu
DOI:10.1002/anie.201503614
日期:2015.8.3
secondary assembling of self‐aggregates of amphiphilic porphyrin derivatives mediated by trans‐ and cis‐azobenzene‐bridged bis(permethyl‐β‐cyclodextrin). Significantly, these nanotubes and nanoparticles were able to interconvert upon irradiation at different wavelengths, and this photocontrolled morphological conversion is reversible and recyclable for tens of times, which will provide a feasible and convenient