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:
May. 08, 2012
Filed:
May. 10, 2007
Rajakkannu Mutharasan, West Chester, PA (US);
David L. Delesdernier, Kennett Square, PA (US);
Gossett Augustus Campbell, Gilbertsville, PA (US);
David R. Maraldo, Gilbertsville, PA (US);
Peter A. Nagy, Newtown Square, PA (US);
Rajakkannu Mutharasan, West Chester, PA (US);
David L. deLesdernier, Kennett Square, PA (US);
Gossett Augustus Campbell, Gilbertsville, PA (US);
David R. Maraldo, Gilbertsville, PA (US);
Peter A. Nagy, Newtown Square, PA (US);
Drexel University, Philadelphia, PA (US);
Abstract
A method for detection of airborne biological agent using a piezoelectric cantilever sensor that includes a piezoelectric layer and a non-piezoelectric layer. A recognition entity is placed on one or both of the two layers. The antibody that recognizes and binds to the airborne species may be chemically immobilized on the cantilever sensor surface. In one embodiment, the cantilever sensor is attached to a base at only one end. In another embodiment, the sensor includes first and second bases and at least one of the piezoelectric layer and the non-piezoelectric layer is affixed to each of the first and second bases to form a piezoelectric cantilever beam sensor. In this embodiment, resonance is measured via stress on the piezoelectric layer and it has been demonstrated that such sensors are robust and exhibit excellent sensing characteristics in gaseous media with sufficient sensitivity to detect airborne species at relatively low concentrations.