Abstract

There is a significant industrial demand for minimizing the size of droplets for various technical applications. Herein, conformal polymer coatings were used to decrease the orifice dimensions of aperture plates to almost any desired dimension. The generated droplet size revealed a relevant impact on the final dried particle size in a spray-drying process. Likewise, the smaller droplets generated resulted in an improved lung deposition following inhalation. Overall, the current results help increase the understanding on how to manipulate the size distribution of droplets produced by actuated aperture plates, especially in the sub-10μm range.

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