Nanoscale Multi-Domain Peptide Fibers (IMAGE) Rice University Caption Nanoscale multi-domain peptide fibers that are prompted to self-assemble into macroscale fibers are tough enough to be handled with tweezers. Rice University chemists who created the fibers said they will enhance the manipulation of cell cultures. Credit Hartgerink Research Group/Rice University Usage Restrictions For news reporting purposes 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.