Episode Details

Researchers at Northwestern University have developed the world’s smallest pacemaker—small enough to be injected with a syringe and powered by light from a wearable chest patch. Designed to dissolve inside the body once it’s no longer needed, the device could be a game‑changer for newborns with congenital heart defects who only need temporary pacing after surgery, cutting down on risky procedures and repeat operations. 

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