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Straining Flow Spinning is a versatile and robust spinning technique for the production of regenerated silkworm silk fibers using mild chemistries. However, reaching high values of tensile strength and strain at breaking requires a step of wet-stretching in water, which limits scalability and the practical usage of the technique. Here, we show that adding a post-spinning drawing step to the procedure...
This paper describes a method of molecular self-assembly by using two interacting streams for the production of bioinspired and biocompatible fibers. A first stream of an aqueous solution (dope) of polymer molecules (fibroins) is extruded from a capillary. The end of the capillary is surrounded by a focusing fluid which is miscible with the dope solution. The interaction between the dope solution...
As spun silkworm (Bombyx mori) silk fibers were compared in terms of their tensile behavior and microstructure with fibers subjected to different degumming treatments. Fibers were initially retrieved by forced silking directly from the worms and, either characterized in the as spun condition, or subjected to one of the following treatments: immersion in water, conventional degumming or degumming under...
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