Scientists have twisted molecules into the tightest knot ever
NPR: Rigoberto Advincula, professor of macromolecular science and engineering, talked about supramolecular chemistry and knots. “Knots are really fascinating objects or geometric shapes. They have always been around; you observe them in art, in nature. As a Boy Scout you learn how to tie knots,” he said. “It’s one of the fascinating things to stretch chemistry in terms of your ability to make synthetic objects.”