Figure 4: Characterization of on-chip MBs loading. | Scientific Reports

Figure 4: Characterization of on-chip MBs loading.

From: Automated microfluidic platform of bead-based electrochemical immunosensor integrated with bioreactor for continual monitoring of cell secreted biomarkers

Figure 4

(a) Illustration of trapped MBs in the reaction chamber. Circular shadows in the background are bubble trap microposts embedded on the top surface of the reaction chamber. (b) On-chip capture efficiency of loaded MBs at different flow rates. (c) Sensitivity of the on-chip immunoassay at different numbers of immobilized beads for detection of standard TF concentration in the linear range of the assay (10–4,000 ng/mL). Data are representative of three independent experiments (ns = not significant; *P < 0.05).

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