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:
Nov. 04, 2025
Filed:
Jun. 18, 2025
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Mohammad Kamal Hossain, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
A surface plasmon resonance sensor system includes a sensor plate having a quartz glass substrate and a copper film sputtered onto the substrate and annealed for about two hours. A quartz prism is attached to a surface of the sensor plate, and a microfluidics unit containing carrier fluid is attached to the opposite surface. A target analyte reservoir is connected through a pump to inject target analytes into the microfluidics unit. A binder is attached to the copper film and binds to target analytes. A laser transmits a beam into the quartz prism at an incident angle that generates surface plasmons resonating with the copper film and reflects a phase shifted laser beam. Receive optics and a charge coupled device convert the phase shifted beam to electrical signals. A computing unit processes the electrical signals to compute refractive index changes based on phase shifts to indicate target analyte detection.