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Electrospun Fibers

Fascinating Silk - Electrospinning, Contraction and Diffraction Experiments
Mar. 13, 2012

Fascinating Silk - Electrospinning, Contraction and Diffraction Experiments

Silk from spider and silkworm shows exceptional mechanical strength, toughness and extensibility if compared to man-made fibers. Other amazing properties are the occurrence of reversible cyclic contraction as well as of permanent super-contraction in fibroin nanofibers electrospun from regenerated Bombyx mori silk. We discovered the key role of the metastable silk-I modification and of the non-crystalline regions with oriented chains in the cyclic behavior under restrained conditions, and the role the silk-II ß-crystallinity plays in super-contraction.
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