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In this Wednesday Aug. 4, 2010 photo Dr. Becker uses a microscope at his laboratory at University College London. British scientists are about to begin a final phase of testing on a new gel that heals wounds up to five times as fast as normal treatment. The gel, named Nexagon, works by interrupting how cells communicate and prevents the production of a protein that blocks healing. That allows cells to move faster to the wound to begin healing it. Though it has only been tested on about 100 people so far, experts say if it proves successful, the gel could have a major impact on treating chronic wounds, like leg or diabetes ulcers, and even common scrapes or injuries from accidents. (AP Photo/Kirsty Wigglesworth)