Comparing the rheology of native spider and silkworm spinning dope
Source abstract
Abstract
Silk production has evolved to be energetically efficient and functionally optimized, yielding a material that can outperform most industrial fibres, particularly in toughness. Spider silk has hitherto defied all attempts at reproduction, despite advances in our understanding of the molecular mechanisms behind its superb mechanical properties. Spun fibres, natural and man-made, rely on the extrusion process to facilitate molecular orientation and bonding. Hence a full understanding of the flow characteristics of native spinning feedstock (dope) will be essential to translate natural spinning to artificial silk production. Here we show remarkable similarity between the rheologies for native spider-dragline and silkworm-cocoon silk, despite their independent evolution and substantial differences in protein structure. Surprisingly, both dopes behave like typical polymer melts. This observation opens the door to using polymer theory to clarify our general understanding of natural silks, despite the many specializations found in different animal species.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Silk-based biomaterials and applications · Viral Infectious Diseases and Gene Expression in Insects · Silkworms and Sericulture Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (30)
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