Nanotechnology is a manipulation of matter on an atomic, molecular, and supramolecular scale. Nanotechnology is one of the most important topics in science nowadays. That is why scientists are going to develop a lot of new inventions in medicine and science, using biotechnology and
nanotechnology.
Moreover, there is the first generation of robots, including nano-surgeons. Scientists recently created a microscopic robot that can crawl along molecules of DNA. Robots, called nano-spiders are made of DNA molecules also. They can make decisions and move automatically, but it's not enough for a real surgery because robots need to be better and nano-spiders need to have more options.
Billions of dollars are being invested in the research and development of nano-products worldwide. Robots are already working in hospitals around the world, often performing operations that require a steadier hand or more precision that a human is capable of. These microscopic robots, therefore, will allow treatments to be given that are currently impossible or which call for more invasive surgery.