The device that Li's team created is microfluidic, which means that it can perform multiple functions using very small amounts of fluids. The device uses an innovative "paper-in-polymer-pond" structure, in which patient blood samples are introduced into tiny wells and onto a special kind of paper. The paper captures cancer protein biomarkers within the blood samples in just a few minutes. The paper subsequently changes color, and the intensity of the color indicates what type of cancer is detected and how far it has progressed.
From the article:
Another Theranos?