Spider silks show unique combinations of strength,toughness,extensibility,and energy absorption.To date,it has been difficult to obtain spider silk-like mechanical properties using non-protein approaches.But now,scientists at Nankai University in China have developed a type of fibre that mimics the qualities of spider silk.The team has produced an artificial spider silk by the water evaporation induced self-assembly of hydrogel fibre made from polyacrylic acid and silica nanoparticles.The material consists of hierarchical core-sheath structured hydrogel fibres,which are reinforced by ion doping and twist insertion.
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