Selective nanofiber deposition via electrodynamic focusing

Abstract

In this paper, we demonstrate the effect of electrodynamic focusing through a gold-coatedPDMS shadow mask on the selective deposition of electrospun nanofibers. Under a suitableapplied voltage, the PDMS mask repels the fibers from its surface while simultaneouslyforcing them into micron-sized holes and onto a collecting substrate. The presentedtechnique is simple and can be used to produce lithographic-scale nanofiber depositionusing a wide range of materials.