New electronic membrane could keep your heart beating indefinitely

It’s a poetic fact of biology that everyone’s heart is a slightly different size and shape. And yet today’s cardiac implants—medical devices like pacemakers and defibrillators—are basically one size fits all. Among other things, this means these devices, though lifesaving for many patients, are limited in the information they can gather. Researchers recently demonstrated a new kind of personalized heart sensor as part of an effort to change that.