CNR-INO 1 article published in JoVE Engineering Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale Hao Zeng1, Piotr Wasylczyk2, Camilla Parmeggiani1,3, Daniele Martella1,4, Diederik Sybolt Wiersma1 1European Labratory for Non-Linear Spectroscopy, University of Florence, 2Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 3CNR-INO, 4Chemistry Department, University of Florence Here, we fabricate 3D polymeric micro/nano structures in which both the shape and the molecular alignment can be engineered with nanometer scale accuracy by the use of direct laser writing. Light induced deformation of several types of liquid crystalline elastomer microstructures can be controlled in the microscopic scale.