A user would mix a droplet of blood in a vial of reactive liquid, then place the mixture onto a strip and insert it into a reader. In minutes, the device would measure an antigen that indicates the degree to which cancer is present.
The prototype has been designed to monitor prostate specific antigen (PSA) and the technology can readily be adapted to measure other markers, depending on the form of cancer or other chronic disease.
reference
Sarah M. Traynor et al, Dynamic Bio‐Barcode Assay Enables Electrochemical Detection of a Cancer Biomarker in Undiluted Human Plasma: A Sample‐In‐Answer‐Out Approach, Angewandte Chemie (2020). DOI: 10.1002/ange.202009664
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