Figure 1

Methods for nebulization used in this study. (a) Vibrating mesh; a flexible mesh mounted on a piezoelectric lead zirconate titanate (PZT) ring actuator stretches and vibrates, thereby expelling droplets. (b) Colliding jet; two jets collide at a high velocity, herewith creating a Savart sheet that breaks up into small droplets. (c) Nanotech membrane; at low pressure, the fluid is pushed through a thin nanotech membrane with pores, herewith creating a plurality of equally sized jets that subsequently break up in equally sized droplets (Rayleigh breakup).