Onion-like Nanoparticle: TEM (IMAGE) University at Buffalo Caption A transmission electron microscopy image of the new nanoparticles, which converts invisible near-infrared light to higher energy blue and UV light with high efficiency. Each particle is about 50 nanometers in diameter. Credit Credit: Institute for Lasers, Photonics and Biophotonics, University at Buffalo Usage Restrictions This image may only be used with media reports discussing the research described in the associated press release. 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.