<<返回上一页

Spider silk could be used for surgical stitching

发布时间:2019-03-02 04:20:12来源:未知点击:

SPIDER silk, long noted for unusual strength and elasticity, maintains its strength even at extreme temperatures. The discovery boosts the idea of using spider-like silks for surgical stitches. David Knight of the University of Oxford and his colleagues tested single strands of silk from the large orb-weaving spider Nephila edulis at temperatures between -60 °C to 150 °C. Knight found that over the entire temperature range the threads could stretch by at least 20 per cent before snapping (Advanced Materials, vol 17, p 84). “This is pretty wacky stuff,” he says. Above 150 °C the fibres became progressively weaker,