Swedish researchers have developed experimental nanobots designed to navigate the bloodstream and clear arterial plaque with incredible precision. This breakthrough at institutions like the Karolinska Institutet marks a shift from invasive surgeries to microscopic, targeted intervention. These tiny "micro-surgeons" use a pH-sensitive system to identify acidic, inflamed plaques while ignoring healthy tissue. Once they reach a target, they utilize mechanical force and localized enzymes to dissolve