Scientists at Northwestern University have developed the world's smallest pacemaker — so tiny it can be injected through a syringe and activated by light. Designed especially for newborns and patients who need temporary heart support, this pacemaker works without wires, bulky batteries, or surgery. Once it’s no longer needed, it harmlessly dissolves inside the body, eliminating the risks of surgical removal. Powered by a simple chemical reaction with body fluids and triggered by light pulses fro
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Introducing the world's smallest pacemaker 💜 The device is so tiny, it can fit inside the tip of a syringe—and be non-invasively injected into the body. This new pacemaker is particularly well-suited to the tiny, fragile hearts of newborn babies with congenital heart defects. | Northwestern University
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