VIRUS 1 (IMAGE) Rice University Caption Hitting a petri dish of cells that contained a modified virus with patterned red light encouraged gene expression that matched the pattern. The experiment by scientists at Rice University proved the effectiveness of a new gene delivery system that can be controlled with light. Credit Eric Gomez/Rice University 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.