Could surgeons use headlights in place of lasers?

 作者:余戢     |      日期:2019-03-02 06:02:00
By Paul Marks It was a real light-bulb moment for Jeffrey Gordon and his team. They had developed a device that would use sunlight rather than expensive lasers to perform surgical procedures such as zapping tumours, and hoped it would make a useful low-cost tool for the developing world. Unfortunately, while the economics were right, the instrument turned out not to be appealing to surgeons. They didn’t want to operate only when the sun was shining, as that made it impossible for them to plan their work. “The obvious drawback has been the ephemeral nature of sunlight,