Here we present a new, universal immunosensor for detection of the influenza A virus. By using electrochemical impedance spectroscopy (EIS) and direct attachment of antibodies to the gold electrode the assay allows detection of the pathogen with sensitivity similar to molecular methods in relatively short time. Application of universal anti-M1 antibodies allows detection of all serotypes of influenza A virus.
The simple design of the sensor facilitates miniaturization of the device and its implementation for routine diagnostics during first contact with the patient, before applying a proper treatment.