Tech
New light-activated coating can kill stubborn germs
Based on graphene, this new material can knock out hard-to-kill germs on contact — even in your mouth.
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Based on graphene, this new material can knock out hard-to-kill germs on contact — even in your mouth.
Made from white flour and formic acid, the nanofibers average just 370 nanometers across. That’s two-hundredths the thickness of a human hair.
Three grand-award winners each took home at least $50,000. Hundreds more teens shared more than $9 million in prizes at the international competition.
Microplastics made from fossil fuels take centuries to disappear. But the plant- and algae-based plastic can break down in weeks to months.
Inspired by Lego building blocks, the approach could enable design of adaptable tools to study how fluids move through very small spaces.
When dipped in indican and exposed to sunlight, yarn turns a deep blue. This process is more eco-friendly than the current denim dyeing method.
Scientists have been trying to understand and harness this material’s superpowers since its discovery in 2004.
DNA machines and protein-mimicking nanotech could replace broken machinery in cells or even lead to made-from-scratch synthetic life.
Researchers in Sweden coaxed wood to conduct electricity, then used it to make a climate-friendlier building block of electronics.
Scientists made a device that converts the greenhouse gas into formate. This salt can then run a fuel cell to make electricity.