A Self-Powered Implantable Drug-Delivery System Using Biokinetic Energy

Adv Mater. 2017 Mar;29(11). doi: 10.1002/adma.201605668. Epub 2017 Jan 9.

Abstract

The first triboelectric-nanogenerator (TENG)-based self-powered implantable drug-delivery system is presented. Pumping flow rates from 5.3 to 40 µL min-1 under different rotating speeds of the TENG are realized. The implantable drug-delivery system can be powered with a TENG device rotated by human hand motion. Ex vivo trans-sclera drug delivery in porcine eyes is demonstrated by utilizing the biokinetic energies of human hands.

Keywords: biokinetic energy; electrochemical pressure pumping; implantable drug-delivery systems (iDDSs); self-powered; triboelectric nanogenerators (TENGs).