Researchers at Washington University in St Louis have engineered bacteria to make ‘polymeric amyloid’, which, spun into fibres, achieved average ultimate tensile strength of 980MPa and an average toughness of 161MJ/m3. Lead by professor Fuzhong Zhang, the team was aiming to create a protein that forms ‘β-nanocrystals’, a significant component of natural spider silk. “Spiders have …
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