Research graphic (IMAGE) Michigan Medicine - University of Michigan Caption The stained cancer cells are sandwiched between two mirrors and shone an excitation laser at them one cell at a time. Credit Jacob Dwyer, Michigan Medicine Usage Restrictions Credit the organization License Original 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.