Photo-responsive Helical Motion by Light-Driven Molecular Motors in a Liquid-Crystal Network.
Photo-responsive Helical Motion by Light-Driven Molecular Motors in a Liquid-Crystal Network.
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液晶网络中光驱动分子马达的光响应螺旋运动
DOI：
10.1002/anie.202016254
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发表时间：
2021-04-06
期刊：
影响因子：
--
通讯作者：
Feringa BL
中科院分区：
文献类型：
--
作者：
Hou J;Mondal A;Long G;de Haan L;Zhao W;Zhou G;Liu D;Broer DJ;Chen J;Feringa BL
通过分子马达控制复杂的运动是未来致动器和软机器人技术的主要目标。从人造机器常见的生物运动性和机械功能中获得灵感，响应性小分子已被用于实现宏观效应，然而，将分子运动沿着长度尺度转化为精确定义的线性、扭转和旋转运动仍然特别具有挑战性。在这里，我们介绍了具有内在旋转马达的液晶网络（LCN）材料的设计，合成和功能，这些材料允许将光能转化为可逆的螺旋运动。在这种响应系统中，光化学驱动的分子马达具有双重功能，既作为手性掺杂剂，又作为单向转子，将分子运动放大为受控的可逆的左手或右手宏观扭转运动。通过利用嵌入在LC网络中的单个电机的动态手性、运动方向性和形状变化，实现了软聚合物材料中的复杂机械运动，包括弯曲、行走和螺旋运动，这为固有光响应材料提供了迷人的机会。通过利用嵌入液晶网络中的单个光驱动电机的动态手性、运动方向性和形状变化，实现了软聚合物材料中的复杂机械运动，包括弯曲、行走和螺旋运动，这为开发固有光响应材料提供了诱人的机会。
Controlling sophisticated motion by molecular motors is a major goal on the road to future actuators and soft robotics. Taking inspiration from biological motility and mechanical functions common to artificial machines, responsive small molecules have been used to achieve macroscopic effects, however, translating molecular movement along length scales to precisely defined linear, twisting and rotary motions remain particularly challenging. Here, we present the design, synthesis and functioning of liquid‐crystal network (LCN) materials with intrinsic rotary motors that allow the conversion of light energy into reversible helical motion. In this responsive system the photochemical‐driven molecular motor has a dual function operating both as chiral dopant and unidirectional rotor amplifying molecular motion into a controlled and reversible left‐ or right‐handed macroscopic twisting movement. By exploiting the dynamic chirality, directionality of motion and shape change of a single motor embedded in an LC‐network, complex mechanical motions including bending, walking and helical motion, in soft polymer materials are achieved which offers fascinating opportunities toward inherently photo‐responsive materials. By exploiting the dynamic chirality, directionality of motion and shape change of a single light‐driven motor embedded in a liquid‐crystal network, complex mechanical motions including bending, walking and helical motion, in soft polymer materials are achieved which offers fascinating opportunities toward inherently photo‐responsive materials.
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影响因子：
64.8
作者：
Gelebart AH;Jan Mulder D;Varga M;Konya A;Vantomme G;Meijer EW;Selinger RLB;Broer DJ
通讯作者：
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通讯作者：
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影响因子：
16.6
作者：
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通讯作者：
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