Figure 7

Various structures. (a) Two possible structures when the narrowest width for the microfluidic channel is 0.04 mm. One structure has a fixed radius r and varying s (dotted line). The other structure has a fixed radius s, and varying r (solid line). (b) Two possible structures when the narrowest width for the microfluidic channel is 0.240 mm. One structure has a fixed radius r and varying s (dotted line). The other structure has a fixed radius s, and varying r (solid line). The marked units are in mm.