Imagine tiny robots made from DNA moving through the bloodstream, delivering drugs exactly where they are needed and targeting threats such as cancer cells or viruses. These microscopic machines could also assemble ultra-precise data storage systems and computing devices at the nanometer scale. Although the possibilities are remarkable, most DNA robots today remain in early experimental stages and are better understood as proof of concept rather than practical tools. Researchers are exploring how DNA can be engineered into working machines using creative design approaches. These include building rigid DNA joints, incorporating flexible components, and using folding techniques inspired by origami. By applying principles from larger-scale robotics such as rigid, compliant and origami robots, scientists are adapting familiar mechanical concepts to the nanoscale. This allows DNA-based systems to carry out controlled and repeatable tasks despite their extremely small size.…