video: Visualization of the voltage-controlled focal length change in a soft hydrogel lens. This material relates to a paper that appeared in the June 21, 2017, issue of Science Advances, published by AAAS. The paper, by D. Wirthl at Johannes Kepler University Linz in Linz, Austria, and colleagues was titled, "Instant tough bonding of hydrogels for soft machines and electronics." view more
Credit: [Credit: Soft Electronics Laboratory, Linz Institute of Technology]