New DNA robots can kill cancer cells by choking blood supply
China and US-based researchers have developed the first fully autonomous DNA robotic system that can shrink cancerous tumours by choking their blood supply. The nanobot was made from a DNA origami sheet, 90 nanometres by 60 nanometres in size, with a blood-clotting enzyme attached to the surface. The system successfully stopped tumour growth in mice injected with human cancer cells.