Read the full story in Chemical & Engineering News.
The paper industry has a significant environmental impact, from cutting down trees for raw material to consuming large amounts of energy and water to process that material. To curb that impact, chemists have been working on rewritable paper technologies that would allow people to print on a sheet of paper with special inks and then erase them to reuse the paper.
A team now reports a form of rewritable paper that can display multicolored images and text for months, before being erased and reused time after time (Nat. Commun. 2018 DOI: 10.1038/s41467-017-02452-w).