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. Author manuscript; available in PMC: 2013 Mar 20.
Published in final edited form as: Anal Chem. 2012 Mar 2;84(6):2883–2891. doi: 10.1021/ac203434x

Figure 1.

Figure 1

System designed for the quantitative measurement of analyte levels in a drop of blood. A small device fabricated from paper patterned with wax, a filter membrane, and a plastic sheath processes and analyzes a drop of blood from a fingerstick. The multifunctional device, encased in two self-adhesive laminating sheets, uses the paper to store the reagents for the assays, and the filter on top of the paper to separate plasma from the red blood cells. A cell phone or desktop scanner digitizes the results from the assays, which can be analyzed off-site by trained personnel. Incineration of the devices easily disposes the bio-hazardous waste.