Nanoparticles (2 of 2) (IMAGE) University of Leicester Caption This is a suspension of nanoparticles in a quarz-glass cell exposed to ultra violet light. The nanoparticles emit deep-blue fluorescence. Credit Dr Klaus von Haeften, University of Leicester Usage Restrictions Must be used with 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.