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World's smallest pacemaker uses light to activate

Northwestern University engineers have developed the world's smallest pacemaker, which is light-activated and can be injected non-invasively, offering a new potential treatment for newborns with congenital heart defects. CNN Health's Jacqueline Howard speaks to a biomedical engineer about the sesame-sized pacemaker.

1:17 • Source: CNN
Science Breakthroughs 9 videos
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World's smallest pacemaker uses light to activate
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