Figure 6.

(A) Photographs showing the cyclic process of grabbing and releasing an object by the optically actuated manipulator arms. (i) Manipulator arms crossed at the center were held vertically with their center tied with a rope. (ii–iv) Finger bends with a knuckle induced by the green light. (v) The object grabbed by the finger is lifted. (vi) Fingers releases the object induced by UV light. (vii–ix) The above process is repeated. (B) Optical microscopic images of a scratched sample before (i) and after (ii) the exposure to a green laser. Adapted with permission from ref (135). Copyright 2018 American Chemical Society.