5 Key Takeaways

• 1

  A leadless intracardiac pacemaker powered by energy harvested from cardiac motion was developed in a preclinical study.

• 2

  The device incorporates two triboelectric nanogenerators that convert heartbeats into electrical energy.

• 3

  In vivo testing showed that the TENG system could increase heart rates while maintaining stable electrical capture.

• 4

  The device demonstrated a volumetric power density of 277 μW/cm³, exceeding previously reported implanted nanogenerators.

• 5

  Chronic evaluation in one swine showed stable cardiac function without significant complications after 4 weeks.