Bio: Zhiguang Wu obtained Doctor degree (supervisor: Prof. Qiang He) in Chemical Engineering and Technology at Harbin Institute of Technology in 2015. Between September 2013 and March 2015 he was a visiting student in the department of nanoengineering at the University of California, San Diego under the supervision of Prof. Joseph Wang. Currently he is a postdoctoral researcher at the Max Planck Institute for Intelligent Systems in Prof. Fischer group
Advanced Materials, 30(3):1704507, December 2017, 1704507 (article)
Acoustic assembly promises a route toward rapid parallel fabrication of whole objects directly from solution. This study reports the contact-free and maskless assembly, and fixing of silicone particles into arbitrary 2D shapes using ultrasound fields. Ultrasound passes through an acoustic hologram to form a target image. The particles assemble from a suspension along lines of high pressure in the image due to acoustic radiation forces and are then fixed (crosslinked) in a UV-triggered reaction. For this, the particles are loaded with a photoinitiator by solvent-induced swelling. This localizes the reaction and allows the bulk suspension to be reused. The final fabricated parts are mechanically stable and self-supporting.
Our goal is to understand the principles of Perception, Action and Learning in autonomous systems that successfully interact with complex environments and to use this understanding to design future systems