For people with diabetes, a small scratch can go unnoticed and turn into a life-threatening sore. That’s because diabetes causes nerve damage that can lead to numbness in the feet, preventing a diabetic from feeling the pain of a simple cut. Exacerbating this situation is the fact that diabetics often experience slow blood circulation, which makes it more difficult for wounds to heal.
“Foot ulcers cause many serious problems for diabetic patients,” says Guillermo Ameer, a professor of biomedical engineering in Northwestern Univ.’s McCormick School of Engineering and of surgery at the Feinberg School of Medicine. “Some sores don’t heal fast enough and are prone to infection,” Ameer continues. “We thought that we could use some of our work in biomaterials for medical applications and controlled drug release to help heal those...
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