Guentner Manuel, Schildhauer Monika, Thumser Stefan, Mayer Peter, Stephenson David, Mayer Peter J, Dube Henry
Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany.
Nat Commun. 2015 Sep 28;6:8406. doi: 10.1038/ncomms9406.
Photodriven molecular motors are able to convert light energy into directional motion and hold great promise as miniaturized powering units for future nanomachines. In the current state of the art, considerable efforts have still to be made to increase the efficiency of energy transduction and devise systems that allow operation in ambient and non-damaging conditions with high rates of directional motions. The need for ultraviolet light to induce the motion of virtually all available light-driven motors especially hampers the broad applicability of these systems. We describe here a hemithioindigo-based molecular motor, which is powered exclusively by nondestructive visible light (up to 500 nm) and rotates completely directionally with kHz frequency at 20 °C. This is the fastest directional motion of a synthetic system driven by visible light to date permitting materials and biocompatible irradiation conditions to establish similarly high speeds as natural molecular motors.
光驱动分子马达能够将光能转化为定向运动，作为未来纳米机器的微型动力装置具有巨大潜力。在当前的技术水平下，仍需付出相当大的努力来提高能量转换效率，并设计出能够在环境友好且无损伤条件下以高定向运动速率运行的系统。几乎所有现有的光驱动马达都需要紫外线来诱导运动，这尤其限制了这些系统的广泛应用。我们在此描述一种基于半硫靛的分子马达，它仅由无损可见光（波长高达500纳米）驱动，在20°C下以千赫兹频率完全定向旋转。这是迄今为止由可见光驱动的合成系统中最快的定向运动，使得材料和生物相容性辐照条件能够实现与天然分子马达相似的高速。
