(IMAGE) Kumamoto University Caption Researchers at the Kumamoto University develop a new supramolecular material that can be a promising PEGylating agent for protein drugs. Credit Kumamoto University Usage Restrictions No restrictions. License Public Domain 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.