Chang Lu, Virginia Tech (IMAGE) Virginia Tech Caption In his lab, Chang Lu of the chemical engineering department at Virginia Tech and his students develop small devices with micrometer features for examining molecular events inside cells. Credit Virginia Tech 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.