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Light-driven micro/nanomotors: from fundamentals to applications
Chemical Society Reviews ( IF 46.2 ) Pub Date : 2017-09-26 00:00:00 , DOI: 10.1039/c7cs00516d
Leilei Xu 1, 2, 3, 4 , Fangzhi Mou 1, 2, 3, 4 , Haotian Gong 1, 2, 3, 4 , Ming Luo 1, 2, 3, 4 , Jianguo Guan 1, 2, 3, 4
Affiliation  

Light, as an external stimulus, is capable of driving the motion of micro/nanomotors (MNMs) with the advantages of reversible, wireless and remote manoeuvre on demand with excellent spatial and temporal resolution. This review focuses on the state-of-the-art light-driven MNMs, which are able to move in liquids or on a substrate surface by converting light energy into mechanical work. The general design strategies for constructing asymmetric fields around light-driven MNMs to propel themselves are introduced as well as the photoactive materials for light-driven MNMs, including photocatalytic materials, photothermal materials and photochromic materials. Then, the propulsion mechanisms and motion behaviors of the so far developed light-driven MNMs are illustrated in detail involving light-induced phoretic propulsion, bubble recoil and interfacial tension gradient, followed by recent progress in the light-driven movement of liquid crystalline elastomers based on light-induced deformation. An outlook is further presented on the future development of light-driven MNMs towards overcoming key challenges after summarizing the potential applications in biomedical, environmental and micro/nanoengineering fields.

中文翻译:

光驱动微型/纳米电机:从基础到应用

光作为一种外部刺激,能够按需以出色的时空分辨率实现可逆,无线和远程操纵的优势,从而能够驱动微纳电机(MNM)的运动。这篇评论集中在最先进的光驱动MNM上,这些MNM能够通过将光能转换为机械功而在液体中或在基板表面上移动。介绍了在光驱动MNM周围构造非对称场以推动自身的一般设计策略,以及光驱动MNM的光敏材料,包括光催化材料,光热材料和光致变色材料。然后,详细说明了迄今为止开发的光驱动MNM的推进机制和运动行为,其中包括光诱导的语音推进,气泡反冲和界面张力梯度,随后是基于光致变形的液晶弹性体的光驱动运动方面的最新进展。在总结了生物医学,环境和微/纳米工程领域的潜在应用之后,将进一步展望光驱MNM在克服关键挑战方面的未来发展。
更新日期:2017-11-13
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