Performance Optimization of Microvalves Based on a Microhole Array for Microfluidic Chips

Figure 6

Effects of microstructural parameters on the flow period and the residual rate of the absorbent in microfluidic chips. (a) Effect of the diameter of the microhole on the results and h = 95 μm and a = 250 μm; (b) effect of the depth of the microhole on the results and d = 230 μm and a = 250 μm; (c) effect of the center distance of the microholes on the results and d = 230 μm and h = 95 μm; (d) relationship between the delay time and the contact angle results.

(a)

(b)

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(d)