Chang Lu and Zhenning Cao, Virginia Tech (IMAGE) Virginia Tech Caption Virginia Tech chemical engineer Chang Lu, and his graduate student Zhenning Cao, right, are authors of the journal article about a unique process that could help in drug development. 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.