Fluorescence map (IMAGE) Imperial College London Caption Fluorescence lifetime imaging microscopy map of nuclear DNA in live cells stained with the new probe. Colours represent fluorescence lifetimes between 9 (red) and 13 (blue) nanoseconds Credit Imperial College London Usage Restrictions None 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.