High-throughput monodisperse aerosols of micro-shell particles
AssigneeThe Trustees of Princeton University
InventorsMaksym Mezhericher, Howard A. Stone
Life of this patent
Estimating the term…
Abstract
Disclosed herein is a simple method for generation of high-throughput aerosols of monodisperse micro-shell particles. To create the aerosol, small nozzles are employed blowing slightly compressed air on a thin liquid film. This allows one to generate bubble aerosols including particles having a thin liquid shell surrounding a gas core, which are suspended in a carrier gas flow or environment. The diameter of the created liquid shells is uniform and scales with the inner diameter of the blowing nozzle, enabling control on the size of the produced monodispersed aerosol and formation of particles between few microns to several hundred of microns in outer diameter.
Claims20
A system for generating aerosols of particles having a liquid shell of micron-scale thickness surrounding a gas core, comprising:
- a frame configured to create a falling film of liquid having a thickness less than 20 μm, the falling film having a top portion, a bottom portion, and an intermediate portion;
- a nozzle configured to direct a gas towards the intermediate portion of the falling film;
- and
- a controller adapted to control a pressure of the gas provided to the nozzle.
A method for generating aerosols of particles having a liquid shell of micron-scale thickness surrounding a gas core, comprising:
- a. creating a falling film from a liquid containing a dissolved surfactant, the falling film having a thickness of less than 20 μm;
- and
- b. generating a plurality of aerosol bubbles by providing a gas to a nozzle configured to direct the gas through the falling film.
Dependencies are inferred from the claim text.