Biorenewable Chemicals (IMAGE) Iowa State University Caption Iowa State's Basil Nikolau and Brent Shanks, left to right, are leading the National Science Foundation Engineering Research Center for Biorenewable Chemicals. Credit Photo by Christopher Gannon/Iowa State 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.