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:
Jun. 01, 1993
Filed:
Jul. 09, 1990
Benjamin Chu, Setauket, NY (US);
The Research Foundation, Albany, NY (US);
Abstract
A process and apparatus for detecting the mobility of fluorescently labeled molecules in response to a force is disclosed. The fluorescently labeled molecules are placed in a fluid medium such as an electrophoretic gel in a capillary tube. An electric field is applied to induce the movement of the molecules. A region of the labeled molecules is photobleached leaving a geometrically defined region which has not been photobleached. The region which has not been photobleached is excited by a reading beam. The reading and the photobleaching beams can be generated by focusing a laser through a diffraction grading. The intensity produced by the interaction of the reading beam in the geometrically defined region of the molecule is detected by a photo detector. In detecting more than one sp
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