title: Tension tests on mammalian collagen fibrils.
abstract: A brief overview of isolated collagen fibril mechanics testing is followed by presentation of the first results testing fibrils isolated from load-bearing mammalian tendons using a microelectromechanical systems platform. The in vitro modulus (326 ± 112 MPa) and fracture stress (71 ± 23 MPa) are shown to be lower than previously measured on fibrils extracted from sea cucumber dermis and tested with the same technique. Scanning electron microscope images show the fibrils can fail with a mechanism that involves circumferential rupture, whereas the core of the fibril stays at least partially intact.
authors: Department of Biomedical Engineering , Case Western Reserve University , Cleveland, OH , USA.
authors: Yehe
authors: Y
authors: Liu
authors: Department of Civil and Environmental Engineering , University of Houston , Houston, TX , USA.
authors: Roberto
authors: R
authors: Ballarini
authors: Department of Biomedical Engineering , Case Western Reserve University , Cleveland, OH , USA.
authors: Steven J
authors: SJ
authors: Eppell
keywords: collagen fibril; mechanics; nanoscience; nanotechnology; tendon