Electrochemical bioassay for the detection of TNF-α using magnetic beads and disposable screen-printed array of electrodes.

Background: In this study we have developed an electrochemical bioassay for the analysis of TNF-α, coupling magnetic beads with disposable electrochemical platforms. TNF-α is a pro inflammatory cytokine that participates in the regulation of immune defense against various pathogens and the recovery from injury. It plays a central role in the development of many inflammatory diseases.