Biorenewable Chemicals (IMAGE) Iowa State University Caption Zengyi Shao and Jean-Philippe Tessonnier, left to right, are combining their expertise in biocatalysis and chemical catalysis to produce a new type of biobased nylon. 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.