Their work, published in the Journal of the American Chemical Society, introduces a safe, sustainable way to insert a single carbon atom into drug molecules at room temperature. These atoms have ...

Image caption, LEFT: The structure of diamond showing each carbon atom joined to four others. RIGHT: The structure of graphite with atoms of carbon arranged in layers. Carbon fibres are long ...

The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and one electron in the region outside the nucleus. The electron and proton are attracted to each other.