Nanowires Coated with Quantum Dots (IMAGE) University at Buffalo Caption A scanning electron microscope image, with color added, shows vanadium oxide nanowires coated with tiny semiconductor crystals called quantum dots. This combination of materials has shown promise for splitting water into oxygen and hydrogen fuel, which could be used to power cars, buses, boats and other modes of transportation. Credit Credit: Christopher Milleville Usage Restrictions This image may only be used by news outlets covering the research described in the related 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.