Dynamic Bio‐Barcode Assay Enables Electrochemical Detection of a Cancer Biomarker in Undiluted Human Plasma: A Sample‐In‐Answer‐Out Approach

Abstract There is a need for biosensing systems that can be operated at the point‐of‐care (POC) for disease screening and diagnostics and health monitoring. In spite of this, simple to operate systems with the required analytical sensitivity and specificity in clinical samples, using a sample‐in‐answer‐out approach, remain elusive. Reported here is an electrochemical bio‐barcode assay (e‐biobarcode assay) that integrates biorecognition with …