A new device can begin repairing damaged organs in seconds, heralding a major breakthrough for life-saving medicine. Developed at Ohio State University, the technology known as tissue nanotransfection (TNT) uses a small coin-sized silicone chip that “injects” genetic code into skin cells, converting them from one type to another.During the initial testing phase, researchers were able to reprogram skin cells into vascular cells on a mouse that had a badly injured leg with no blood flow. Within one week active blood vessels appeared around the leg and within two weeks the leg had been completely restored. A mouse that had suffered a stroke was also saved, suggesting this technology can be applied to organs and nerve cells, as well as tissue. It’s the first time cells have been reprogrammed in a live body.

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