File Name : figures1.tiff Caption : supplementary figure 1. magnetic field simulations compared to observed rbc separation for three magnetic separator prototypes. observed rbc separation correlated well spatially with magnetic field simulations across all prototypes. rbcs were drawn to areas of high magnetic field strength while rbc-depleted plasma accumulated in areas of low field strength. File Name : figures2.tiff Caption : supplementary figure 2. quantitative analysis of rbc-depleted supernatant recovery and cell separation efficiency of magnetic separator prototypes. (a) volume yield of each magnetic separator prototype after 5 minutes of magnetic separation. prototype #3 yielded an average of 1.990 ml of supernatant, compared to 1.696 ml and 1.348 ml for prototypes #1 and #2, respectively. (b) cell separation efficiency across magnetic separator prototypes. prototype #3 yielded the lowest cell concentration in rbc-depleted supernatant, with 3,233 remaining cells/μl, compared to 53,417 and 17,624 cells/μl for prototypes #1 and #2, respectively. error bars in all figures indicate mean ± standard deviation. ****p<0.0001, ***p<0.001, **p<0.01, *p<0.05 File Name : figures3.tiff Caption : supplementary figure 3. transmembrane pressure buildup during filtration. transmembrane pressure was measured over time using a positive-pressure configuration at the operating flow rate. pressure increased gradually during the initial phase of filtration, reaching ~340 mbar (~5 psi) at 4 minutes, corresponding to the standard operating endpoint. beyond this point, pressure rose sharply to ~1400 mbar (~20 psi), consistent with progressive membrane fouling and eventual clogging due to red blood cell accumulation. File Name : figures4.tiff Caption : supplementary figure 4. additional views of the core components of plasmalift system. front and top views of plasmalift setup are shown, along with comparison to a smartphone (asus zenfone 11 ultra) for scale.