The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2006
Filed:
Jun. 07, 2004
Jian Liu, Charleston, SC (US);
Daniel R. Knapp, Charleston, SC (US);
Jian Liu, Charleston, SC (US);
Daniel R. Knapp, Charleston, SC (US);
MUSC Foundation for Research Development, Charleston, SC (US);
Abstract
A pointed carbon fiber electrospray ionization emitter has a length of electrically conductive fiber that is present within a lumen of a microfluidic device, and protrudes from the terminus. A point is present on an end of the electrically conductive fiber, or the electrically conductive fiber is otherwise sufficiently small on the end to create a desired spray. A conductor supplies electrical current to the electrically conductive fiber. Fluid to be sprayed is transported through the lumen and out of the terminus of the lumen, and an electrical field established by the conductive fiber distributes and sprays the fluid. The emitter is rugged and is able to generate stable electrospray over a wide range of flow rates, voltages, and surface tension variations.