US 12,421,630 B2
Ultrasonic electrospinning for the production of fine and ultrafine fibers
Daren Chen, Glen Allen, VA (US)
Assigned to Virginia Commonwealth University, Richmond, VA (US)
Filed by Virginia Commonwealth University, Richmond, VA (US)
Filed on Feb. 14, 2023, as Appl. No. 18/168,961.
Prior Publication US 2024/0191400 A1, Jun. 13, 2024
Int. Cl. D01D 5/00 (2006.01)
CPC D01D 5/0069 (2013.01) 13 Claims
OG exemplary drawing
 
1. A method of electrospinning, comprising
conducting a liquid through one or more channels to an exit surface of one or more electrospinning nozzles;
vibrating the exit surface with acoustic energy, the exit surface passing the acoustic energy to the liquid on the exit surface so the liquid forms into a standing wave on the exit surface of the one or more electrospinning nozzles;
supplying a voltage differential between the exit surface and a target; and
controlling the acoustic energy and the voltage differential to induce jetting of the liquid as electrospun fiber from one or more peaks of the standing wave.