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Teen thoughts may reduce infections in sutures



(news)
-A 17-year-old high school student and finalist of the national science competition proposed an impressive invention that hopes to save lives, especially in developing countries. Dasia Taylor of Iowa City, Iowa read about “smart” sutures, which are coated with conductive materials that can transmit wound changes to smartphones and computers. Smithsonian. As Dasia sees, the problem is that expensive sutures are unlikely to be used by people in low- and middle-income countries, where surgical site infections are usually more common and more deadly. Washington post. When her chemistry teacher gave a speech at a statewide science fair in October 201

9, Dasia set out to make her own sutures that could record pH changes without the use of electronic devices. The key: beets.

The pH of human skin is about 5, but it increases to 9 with infection. As Dasia discovered, beet juice is bright red at a pH of 5, and turns dark purple at a pH of 9. This means that sutures containing beet juice dye should change color when infected. Tests using cotton-polyester yarn blends proved Dasia’s theory. At a pH of 9, the sutures turned dark purple within five minutes. After three days, they faded to light gray. Dasia not only “dominant” the statewide competition, but also won one of the 40 national finalists selected by the prestigious Regeneron Science Talent Search. postal. More research is needed to translate it into practical applications. For example, standard sutures do not absorb bacteria. But Dacia was not frustrated by this and planned to apply for a patent for his invention. (Read more invention stories.)




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