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New mesh gives net gains against mosquitoes

作者:束酷汁    发布时间:2019-03-01 02:07:04    

GET a good night’s sleep: bed nets designed to stop mosquitoes in their tracks are undergoing large-scale trials in India and Tanzania. Ordinary nets keep mosquitoes at bay, but the malaria-transmitting insects can still bite skin lying against the mesh. Coating nets with insecticide prevents this, but the chemicals tend to wash out of conventional yarns and so only offer effective protection for a few months. Now the German firm BASF has developed a polymer mesh whose cross-linked structure can retain a pyrethroid insecticide inside it for 25 washes,

 

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