Two Types of Twisted Filament Bundles (IMAGE) University of Massachusetts Amherst Caption Cyindrical (left) and tape-like (right) twisted filament bundles: model morphologies (simulated assemblies) and experimental observations (amyloid fibers). Greg Grason and colleagues have for the first time identified key factors that govern the final morphology of self-assembling chiral filament bundles. Credit UMass Amherst/Greg Grason 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.