Valeria Nava (IMAGE) American Society of Agronomy Caption Researcher Valeria Nava working in the lab with carbon nanotubes. Credit Frank Yang Usage Restrictions For use with this story only. 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.