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Fig. 4 | BMC Biotechnology

Fig. 4

From: Specific detection of foot-and-mouth disease serotype Asia 1 virus by carboxyl-magnetic beads conjugated with single-domain antibody

Fig. 4

Confocal microscopic images of fluorescent, MNBs, and complexes of bead-virus. b The fluorescence of QDs-C5 from the labeled target virus (the green spots, on the upper left), a The beads in bright field image (black spots, on the upper right), c The merged image of complexes of beads-virus-(QDs-C5) indicating successful capture of target virus onto the MNB (on the lower left), d The aggregation of complexes of beads-virus-(QDs-C5) (on the lower right, as indicated by the arrows)

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