Recently, researchers from the prestigious Canadian universities, McGill University, the University of Montreal and the Montreal Institute of Technology, have collaborated to make a major breakthrough in the field of cancer treatment. They developed a nano-robot that can run inside human blood vessels, precisely lock cancer cells and deliver drugs. This is the most advanced drug delivery system in the world, because it does not damage normal human tissues and organs at all; in addition, this means that patients can greatly reduce the dose of drugs to be taken, thereby reducing the side effects caused by these drugs.
According to Professor Sylvain Martel, head of the Nano Robotics Research Center at the Montreal Institute of Technology, each nano-robot carries no less than 100 million bacteria, each of which has flagella and self-propelled, carrying enough medicine. After entering the human body, it begins to look for areas that require medical treatment. Moreover, the driving force of drugs can make them penetrate into the tumor and effectively disintegrate the tumor.
The process, in particular, is that once the nanobots enter the tumor, they begin to search for places where oxygen is depleted, the “anoxic zone†and then deliver the drug there. Rapid proliferation of tumor cells requires the consumption of large amounts of oxygen, creating an "anoxic zone", which is the active and aggregating site of tumor cells. Until now, these “anoxic zones†have resisted major treatments, including radiation therapy. So Professor Martel will consider trying to use nanotechnology.
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