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. Author manuscript; available in PMC: 2019 Mar 4.
Published in final edited form as: Anal Chem. 2017 Jul 26;89(16):8273–8281. doi: 10.1021/acs.analchem.7b01288

Figure 5.

Figure 5

Microfilter-based blood separator. (a) A pipette tip with blood inserted into a filter tip with glass beads. Push the pipette to let the serum go through the glass beads, while the blood cells were trapped in the gaps between the beads. (b) Filter tip filled with three kinds of glass beads (600 μm, 100 μm and 15 μm). (c) Glass beads inside the tip. The yellow and white arrow indicates one of the 100 μm and 15 μm beads, respectively. (d) An amplified view of the filter tip end. The yellow and red arrow indicates the 100 μm and 600 μm bead, respectively. (e, f)Blood samples loaded into the device without (e) or with the filter (f). The graphs confirmed the performance of this home-made microfilter tip.