Redox capacitive assaying of C-reactive protein at a peptide supported aptamer interface

Electrochemical immunosensors offer much in the potential translation of a lab based sensing capability to a useful "real world" platform. In previous work we have introduced an impedance-derived electrochemical capacitance spectroscopic analysis as supportive of a reagentless means of rep...

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Bibliographic Details
Main Authors: Piccoli, J, Hein, R, El-Sagheer, A, Brown, T, Cilli, E, Bueno, P, Davis, J
Format: Journal article
Language:English
Published: American Chemical Society 2018
Description
Summary:Electrochemical immunosensors offer much in the potential translation of a lab based sensing capability to a useful "real world" platform. In previous work we have introduced an impedance-derived electrochemical capacitance spectroscopic analysis as supportive of a reagentless means of reporting on analyte target capture at suitably prepared mixed-component redox-active, antibody-modified interfaces. Herein we directly integrate receptive aptamers into a redox charging peptide support in enabling a label-free low picomolar analytical assay for C-reactive protein with a sensitivity that significantly exceeds that attainable with an analogous antibody interface.