(IMAGE) Chiba University Caption (a) The toroidal assemblies with no termini are not easily deformed in solution, resulting in less excitation energy loss and strong yellow fluorescence. (b) The randomly coiled assemblies are easily deformed, resulting in excitation energy loss and a weak orange fluorescence. Credit Sho Takahashi 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.