Imaging Through Living Tissue (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption Light emitted by nanoparticles injected into the mammary fat pads of a live mouse is imaged through several millimeters of tissue. This sequence shows how the light emitted by these laser-excited particles can be imaged through deep tissue two hours after injection (left), four hours after injection (center), and six hours after injection (right). Credit UC San Francisco 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.