Electrochemical affinity sensor

摘要

Disclosed herein is an electrochemical sensor comprising an electrode having a protective layer; conductive nanoparticles bound to the protective layer; a redox active species bound to the conductive nanoparticles; and a binding moiety capable of associating with an analyte, the binding moiety being associated with the redox active species bound to the conductive nanoparticles. Association of a binding moiety with the analyte modulates the electrochemistry of the redox active species.