Researchers at the Faculty of Physics, University of Warsaw, used the liquid crystal elastomer technology to demonstrate a series of micro-tools grown on optical fibers. The 200-micrometer gripers are controlled remotely, without electric wiring or pneumatic tubing, with green light delivered through the fibers—absorbed light energy is directly converted into the gripper jaws’ action.
Click here for original story, The smallest micro-gripper, grown on optical fibers, is operated remotely with light
Source: Phys.org