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. 2003 Oct;85(4):2539–2546. doi: 10.1016/s0006-3495(03)74676-1

FIGURE 1.

FIGURE 1

(A) Epifluorescent image of a typical PIV experiment. 0.3-μm fluorescently labeled particles undergoing electro-osmosis and electrophoresis are traced through a 200-μm-wide channel at 8 V/cm. The scale bar is equal to 20 μm. (B) Velocity profiles of the tracer beads in an uncoated channel (+) and coated channel (○). The dashed line is a parabolic fit to the PIV data in an uncoated channel, and the solid line is the result of a finite element model for pressure flow in a rectangular channel.