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:
Jan. 03, 2006
Filed:
Jul. 13, 2001
Timothy J. Johnson, Gaithersburg, MD (US);
Emanuel A. Waddell, Jr., Gaithersburg, MD (US);
David J. Ross, Gaithersburg, MD (US);
Laurie E. Locascio, North Potomac, MD (US);
Timothy J. Johnson, Gaithersburg, MD (US);
Emanuel A. Waddell, Jr., Gaithersburg, MD (US);
David J. Ross, Gaithersburg, MD (US);
Laurie E. Locascio, North Potomac, MD (US);
The United States of America as represented by the Secretary of Commerce, Washington, DC (US);
Abstract
A method is described for modifying performed channels fabricated in a variety of substrate materials including PMMA. The method involves exposing a portion of a fluid flow channel to light at a fluence and wavelength which modifies the surface charge of the substrate at the exposure site. The method can be used to modulate electroosmotic flow in channels or to immobilize chemical compounds or biological species in the fluid flow channels at the modified surfaces. The method can be used to fabricate or modify microfluidic systems