Hyper absorbent aerogels made from upcycled cotton waste

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Some despair at ever-growing landfills, others see opportunities to reclaim resources. We’ve seen examples before of old clothes being re-purposed, such as a project that involved using cotton to produce aviation bio-fuel. Now, researchers at the National University of Singapore (NUS) have discovered another use for discarded clothing. Aerogels are not really gels; they’re solid structures full of air rather than liquid, and are compressible into tiny, easily transportable structures. We don’t see aerogels in industry too often due to typically high production costs and slow manufacturing times. However, the NUS team, by using upcycled clothing cotton, has found a…

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