Fig. 1: Overview of the in vivo triboelectric nanogenerator driven by inertia.
From: Self-rechargeable cardiac pacemaker system with triboelectric nanogenerators
a Photograph of a walker showing a vertical displacement of ~6 cm. scale bar, 30 cm. b Schematic image of the I-TENG, and surface SEM image of the surface-modified PFA layer. scale bar, 5 μm. c The working mechanism of the I-TENG with the freestanding unit. d Photograph of the stacked I-TENG and a commercial coin battery. scale bar, 1 cm. e Photographs of the (i) front and (ii) back of the power management system. scale bar, 1 cm.
