Ink-free rewritable paper can be used 80 times

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So much pollution is clogging the world’s environments that a huge variety of projects and processes are removing some of that waste by creating new products. From old clothing used for airplane biofuel to wastewater turned into furniture, businesses and consumers now have a much wider selection of sustainable options. Paper contributes both to landfill and deforestation, so a new method of coating paper with nano-particles that allows it to be printed with UV light, over and over, could substantially reduce both problems. A team of researchers from China’s Shandong University; the University of California, Riverside; and Lawrence Berkeley National…

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