ABSTRACT
Electrohydrodynamic processing, in which a solution with a controlled ow rate is pumped into a nozzle to initiate aerosol jets under an electric eld, is a novel and cost-effective technique capable of producing particles in a range of micrometer to nanometer scales by altering the processing parameters. Instead of using the inertial forces, a uniform electrohydrodynamic force is used to break up the liquids into ne jets when the charge density on the droplet surface exceeds a critical value known as the Rayleigh limit [1-4]. This process has recently attracted the attention of many researchers, because this technique has been used to prepare both micro-and nanometer architectures with application to patterned materials, bioactive lms and coatings, drug-delivery carriers, and particles with controllable structures [5-10].
