Biological ID System

Citation

(2003), "Biological ID System", Sensor Review, Vol. 23 No. 4. https://doi.org/10.1108/sr.2003.08723dad.012

Biological ID System

Biological ID System

Applicant: Gau Vincent Jen-Jr, USAPatent number: US2002123048Publication date: 5 September 2002Title: Biological identification system with integrated sensor chip

Keywords: Biometrics, Sensors

This invention relates to a method and apparatus for sensing or detecting various target analytes, including ionic molecules (e.g. iron, chromium, lead, copper, calcium or potassium) and macromolecules (e.g. DNA, RNA or protein) using a biosensor incorporated on a single substrate. The microfabricated electrochemical biosensor comprises at least two single layer, electrically conductive electrodes fabricated on the substrate by integrated circuit technology. These may include a working electrode, a reference electrode and an auxiliary electrode.

The biosensor also provides a confinement system that provides controlled contacts between the reagent(s) and/or solution(s) with the electrodes by using controllable surface properties and surface tension forces. The confinement system allows for incorporation of the biosensor or biosensors into a portable or handheld device and is immune to shaking and/or flipping.

Preferably, the entire sensor system is fabricated on a single integrated circuit (IC) substrate, thus requiring no external components or instruments to produce a complete detection system.