Human cells reprogrammed to become stem cells can form cornea tissue in lab dishes, researchers in Japan and Wales report March 9 in Nature. The stem cell tissue was used to repair the damaged outer layer of the cornea in rabbits. In a separate study also published March 9 in Nature, researchers in China and the United States coaxed stem cells in the eyes of a dozen babies born with cataracts to regrow clear lenses. ?
Today, producing hydrogen requires burning fossil fuels or using water-splitting catalysts that work relatively inefficiently, says physicist Arvin Kakekhani of Yale University. But Kakekhani and Sohrab Ismail-Beigi, also at Yale, identified a strategy using materials known as ferroelectric oxides to catalytically separate hydrogen from oxygen more effectively.
BALTIMORE — For a long time now, hydrogen has been the fuel of the future. A new idea for extracting hydrogen from water might help that future arrive a little sooner.
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