A Bright 'Glow Stick' Marker for Cells (IMAGE) American Chemical Society Caption A new chemiluminescent probe (left) is much brighter than luminol (right) currently used in crime scenes; also, this probe can be used directly in cells (below), unlike most chemiluminescent systems today. Credit American Chemical Society Usage Restrictions Please credit the American Chemical Society when using this image. 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.