RADIO FREQUENCY BIO-SENSOR

摘要

A radio frequency (RF) bio-sensor responsive to an analyte of interest comprising an antenna (inductor) integral with a bio-based capacitor, wherein the sensor changes resonant frequency in the presence of the analyte by biologically mediated changes to the capacitor structure and/or materials. The RF biosensor can be interrogated with a vector network analyzer to detect the resonant frequency shift.

主权项

1. A RF bio-sensor for detecting an analyte of interest, said sensor comprising an antenna integral with a bio-based capacitor,
wherein: the capacitor comprises a layer of bio-based medium between a first and second capacitor plate and which capacitor has an initial (first) capacitance; the bio-based medium is responsive to the analyte of interest and provides a response in the presence of the analyte which causes the capacitor to have a second capacitance which is different from the first capacitance; and the sensor has an initial resonant frequency at the first capacitance and a second resonant frequency at the second capacitance, which second resonant frequency is different from the initial resonant frequency.