Back to results
US 2008/0186495 A1Published application
Cylindrical waveguide biosensors
AssigneesState of Oregon acting by and through the State Board of Higher Education on behalf of Portland, State University
InventorsShalini Prasad, Ravi Kiran Reddy
Life of this patent
Estimating the term…
Abstract
Sensors include a substrate having defined thereon at least one polymer optical cavity with a sensitizing agent such as antibodies immobilized on the exterior of the polymer optical cavity. The polymer optical cavity can be defined in a polymer layer that is spin coated onto a substrate and photolithographically exposed. Positive or negative photoresists can be used to define the polymer optical cavity.
Claims20
A sensor, comprising:
- a substrate having defined thereon at least one polymer optical cavity;
- and
- a sensitizing agent immobilized on at least a portion of an exterior of the polymer optical cavity.
A sensor system, comprising:
- a sensitized polymer optical cavity;
- a light source coupled to provide an interrogation light flux to the polymer optical cavity;
- and
- a detection system configured to receive a modulated portion of the interrogation light flux from the sensitized polymer cavity and provide an indication of an analyte concentration based on the received portion.
1 more element
A method, comprising:
- applying a photopolymer layer to a substrate;
- exposing the photopolymer layer to a patterned light flux associated with at least one optical cavity;
- developing the photopolymer so as to define the at least one optical cavity;
- and
- applying a sensitizer to the at least one optical cavity.
2 more elements
Dependencies are inferred from the claim text.