Research Article

Automated Long-Term Monitoring of Parallel Microfluidic Operations Applying a Machine Vision-Assisted Positioning Method

Figure 3

(a) Representative snapshots of dye injection (upper row) and dye extraction (lower row) processes at 1 s, 5 s, and 12 s (left to right) under a flow rate of 24.6 nL/min. Scale bar: 250 μm. (b) Normalized average color intensities in the chamber for flow rates 24.6 nL/min, 123.1 nL/min, and 153.9 nL/min during the dye injection (left) and dye extraction (right) processes. All of the curves of the color intensities were obtained by at least three independent experiments. Error bars represent the standard deviations.