Patent ID: 9465002
Filing Date: 2016-10-11
CPC Classification: C12Q,G01N

Claim Text:
1. A biosensor, comprising: an electrode disposed adjacent to a fluid layer having a charged species therein; an interface of said electrode and said fluid layer characterized by a first capacitance, wherein said fluid layer characterized by an impedance; and detection circuitry operatively coupled to said electrode, wherein said detection circuitry comprises an operational amplifier and a capacitor, wherein said capacitor is in a parallel configuration with respect to said operational amplifier, wherein said detection circuitry is configured to detect said charged species in said fluid layer, wherein said capacitor comprises a second capacitance and said detection circuitry having a potential output that is a function of at least one of (i) an induced potential within said fluid layer, (ii) said first capacitance and (iii) said second capacitance.