Patent ID: 7875825
Filing Date: 2011-01-25
Classification: G01N

Abstract:
1. A method for generating plasma comprising the steps of providing a narrow portion in a flow channel made of an insulation material, the narrow portion having a cross-sectional area markedly smaller than a cross-sectional area of the flow channel, wherein the flow channel has a thickness of from 2 μm to 30 mm and has a width of from 2 μm to 30 mm, and wherein the narrow portion has a thickness of from 0.5 μm to 1 mm and has a width of from 0.5 μm to 1 mm, and wherein the flow channel comprises the narrow portion having a cross-sectional area markedly smaller than a cross-sectional area of the flow channel; filling the flow channel and the narrow portion with a conductive liquid, and thereafter applying an electric field to the narrow portion to form bubbles at the narrow portion, to conduct the electric field through said narrow portion, wherein the length of the direction of the electric field at the narrow portion is from 2 μm to 3 mm, thereby generating plasma in the formed bubbles at said narrow portion.