Patent ID: 8100293
Filing Date: 2012-01-24
Classification: B01L,B33Y,F16K,G01N,Y10T

Abstract:
1. A method of microfluidic dispensing of at least one ingredient, the method comprising: providing a microfluidic dispensing system comprising: aspirating an air plug into the at least one tip by applying an opening pressure control pump signal for the air plug to the at least one diaphragm pump, actuating the at least one diaphragm pump, and creating a negative pressure gradient for the air plug in the at least one tip; aspirating at least one ingredient into the at least one tip by applying an opening pressure control pump signal for the at least one ingredient to the at least one diaphragm pump, actuating the at least one diaphragm pump, and creating a negative pressure gradient for the at least one ingredient in the at least one tip, the at least one ingredient being disposed adjacent to the air plug; and dispensing a portion of the at least one ingredient from the at least one tip by applying a closing pressure control pump signal to the at least one diaphragm pump, actuating the at least one diaphragm pump, and creating a positive pressure gradient in the at least one tip.