Viridicatumtoxin B (image) Rice University Caption The molecular structure of viridicatumtoxin B, which has been synthesized and tested by scientists at Rice University. The natural antibiotic and its synthetic variants have potential to help wage the fight against resistant superbugs. Credit Nicolaou Group/Rice University Usage Restrictions None 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.