Download Elastomeric Proteins: Structures, Biomechanical Properties, by Peter R. Shewry, Arthur S. Tatham, Allen J. Bailey PDF

By Peter R. Shewry, Arthur S. Tatham, Allen J. Bailey

Elastic proteins ensue in a variety of organic platforms the place they've got advanced to satisfy unique organic roles. the easiest identified contain proteins in vertebrate muscle mass and connective tissues, comparable to titin, elastin, fibrillin and spider silks. curiosity in elastomeric proteins is at present excessive for a number of purposes. to begin with, they've got organic and clinical value, really in human ailment. Secondly, the weird houses of proteins similar to spider silks offer possibilities to boost novel fabrics. Thirdly, the improvement of scanning probe microscopy makes it attainable to check constructions and biomechanical houses of those proteins on the unmarried molecule point.

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2). As water content and temperature are lowered and strain rate increased, elastin enters its glass transition (zone 2). Here, it exhibits higher stiffness and extensibility, but lower resilience, leading to a toughness that is at least an order of magnitude higher. It is worth noting that, because elastin must be dehydrated or cooled to exhibit zone 2 behaviour at moderate strain rates, it may never function in this region of its viscoelastic curve under natural conditions. However, mussel byssal fibres achieve similar toughness levels when fully hydrated in seawater, and so it may be fruitful to discover the molecular origins of this enhanced toughness.

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