New Fluorescent Dye (IMAGE) University of Oregon Caption Image depicts the structure of a nanohoop of carbon and hydrogen, along with sidechains of sulfonate, developed by researchers at the University of Oregon. The sidechains promoted solubility in aqueous media so that the nanohoops, based solely on their sizes, would emit different colors in living biological cells. Credit Image by Brittany M. White and Yu Zhao Usage Restrictions Use credit License Licensed 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.