(IMAGE) Chiba University Caption Kenta Tamaki from Chiba University, Japan (a) Chemical structure of monomer 1 (1trans and 1cis), which incorporates a twistable biphenyl and an azobenzene photoswitch. (b) Energy landscape of self-assembled 1 with representative atomic force microscopy images. Credit Kenta Tamaki from Chiba University, Japan Usage Restrictions Cannot be reused without permission. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.