’Venus Flytrap’ spheres catch and destroy BPA

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Scientists have created micron-sized spheres built to catch and destroy bisphenol A (BPA), a synthetic chemical used to make plastics.

BPA is commonly used to coat the insides of food cans, bottle tops, and water supply lines, and was once a component of baby bottles. While BPA that seeps into food and drink is considered safe in low doses, scientists suspect prolonged exposure affects the health of children and contributes to high blood pressure.

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These cheap paper water filters remove lead, arsenic, and bacteria

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Just pour water through the Mesopaper and it does the rest.

On a visit to Bangladesh in 2011–where an estimated 20 million people are exposed to arsenic in local drinking water–scientist Liangjie Dong worked with a team to teach residents how to use a filtration system he designed that could make the water safe. The technology worked, but it wasn’t self-explanatory: it required training in how to use a special cartridge, and special instructions for how to dispose of it after use.

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