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. 2009 Aug 21;25(4):745–752. doi: 10.1016/j.bios.2009.08.020

Fig. 1.

Fig. 1

(a) Schematic illustration of a sandwich-based immunoassay with magnetic beads; (b) schematic illustration of the protocol for purification and detection of IgG/IgM by using the virus-bound magnetic beads in the microfluidic system.