4 papers · 1 filter
Anisotropic swelling due to hydration constrains anisotropic elasticity in biomaterial fibers
Xander A. Gouws, Ana Mastnak, Laurent Kreplak +1
Naturally occurring protein fibers often undergo anisotropic swelling when hydrated. Within a tendon, a hydrated collagen fibril's radius expands by 40% but its length only increas…
Torsion and Bistability of Double-Twist Elastomers
Matthew P. Leighton, Laurent Kreplak, Andrew D. Rutenberg
We investigate the elastic properties of anisotropic elastomers with a double-twist director field, which is a model for collagen fibrils or blue phases. We observe a significant P…
Phase-field collagen fibrils: Coupling chirality and density modulations
Samuel Cameron, Laurent Kreplak, Andrew D. Rutenberg
To describe the interaction between longitudinal density modulations along collagen fibrils (the D-band) with the radial twist-field of molecular orientation (double-twist), we cou…
Polymorphism of stable collagen fibrils
Samuel Cameron, Laurent Kreplak, Andrew D. Rutenberg
Collagen fibrils are versatile self-assembled structures that provide mechanical integrity within mammalian tissues. The radius of collagen fibrils vary widely depending on experim…