Engineering Electrospun Nanostructured Coatings on Macroscopic Particles

Abstract

Electrospinning is widely used in industrial applications to produce coatings with different structures and improved physicochemical properties such as mechanical strength, corrosion resistance, and permeability. Electrospinning is commonly used for coating planar surfaces as opposed to coating nonplanar surfaces, such as macroscopic spheroidal substrates, which remains challenging. Herein, we engineered electrospun coatings on macroscopic particles (i.e., urea granules, steel balls, glass beads, natural zeolite) using biocompatible polymers (i.e., biodegradable beeswax and polycaprolactone). The morphology of the coatings was tuned to afford different architectures including beads, a mixtur..