Synthetic nitrogen fertilizers such as urea help feed about half of the world’s population. But making urea is a multistep endeavor that consumes copious amounts of energy and emits large amounts of ...

Scientists and engineers have devised a new method for making urea that is more environmentally friendly than today's process and produces enough to be competitive with energy-intensive industrial ...

A gel made from the main compound in urine looks just like a friendship bracelet. It is formed of minuscule fibres that spontaneously form braids and could be used to engineer new medicines. Jonathan ...