Coneyl Jay, a photographer and illustrator, used computer graphics to produce the picture. The judging panel said the nano-louse image, with its pincers and in-built syringe, cleverly conveys the idea of nanomedicine.

The awards, run by global healthcare business Novartis and the UK newspaper The Daily Telegraph, attracted more than 600 entries. Winners received their prizes at a ceremony last week at The Royal Society in London, UK.