Actuation systems in plants as prototypes for bioinspired devices
Actuation systems in plants as prototypes for bioinspired devices
复制标题
DOI：
10.1098/rsta.2009.0003
复制
发表时间：
2009-04-28
期刊：
影响因子：
5
通讯作者：
Fratzl, Peter
中科院分区：
文献类型：
--
作者：
Burgert, Ingo;Fratzl, Peter
植物进化出了多种驱动器官运动的机制。活细胞中水的渗透性流入和流出可导致器官沿预定方向快速移动。即使是死亡的组织也可能被植物细胞壁的膨胀或干燥所激活。器官的变形由微米级的几何约束(例如细胞形状和大小)和纳米级的细胞壁聚合物组成(例如纤维原纤维取向)在不同的组织层次上控制。本文综述了植物器官运动的不同机制，并重点介绍了该领域的最新研究进展。特别注意那些在没有任何新陈代谢的情况下被激活的系统。这种系统的设计原则可能对仿生转化为主动技术复合材料和移动设备特别有用。
Plants have evolved a multitude of mechanisms to actuate organ movement. The osmotic influx and efflux of water in living cells can cause a rapid movement of organs in a predetermined direction. Even dead tissue can be actuated by a swelling or drying of the plant cell walls. The deformation of the organ is controlled at different levels of tissue hierarchy by geometrical constraints at the micrometre level (e.g. cell shape and size) and cell wall polymer composition at the nanoscale (e.g. cellulose fibril orientation). This paper reviews different mechanisms of organ movement in plants and highlights recent research in the field. Particular attention is paid to systems that are activated without any metabolism. The design principles of such systems may be particularly useful for a biomimetic translation into active technical composites and moving devices.