<ul><li>Engineers at Northwestern University have developed the world’s smallest pacemaker that can be injected.</li><li>The injectable pacemaker dissolves safely into the bloodstream and is designed for short-term use.</li><li>It is powered by light and works in conjunction with a wireless wearable device.</li><li>The pacemaker has potential applications in pediatric care and can be used to stimulate the heart for temporary pacing.</li></ul>

The world’s smallest pacemaker is injectable and powered by light

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