Microfluidic apparatus

1 FIG. is a top perspective view of a first embodiment of a microfluidic apparatus, showing our new design; 2 FIG. 1 FIG. is a top plan view of the microfluidic apparatus of, the opposite bottom plan view being a mirror image thereof; 3 FIG. is a top perspective view of a second embodiment of a microfluidic apparatus, showing our new design; 4 FIG. 3 FIG. is a top plan view of the microfluidic apparatus of; 5 FIG. 3 FIG. is a bottom plan view of the microfluidic apparatus of; 6 FIG. is a top perspective view of a third embodiment of a microfluidic apparatus, showing our new design; 7 FIG. 6 FIG. is a top plan view of the microfluidic apparatus of, the opposite bottom plan view being a mirror image thereof; 8 FIG. is a top perspective view of a fourth embodiment of a microfluidic apparatus, showing our new design; 9 FIG. 8 FIG. is a top plan view of the microfluidic apparatus of; and, 10 FIG. 8 FIG. is a bottom plan view of the microfluidic apparatus of. The evenly-spaced broken lines in the drawings are included for the purpose of illustrating portions of the microfluidic apparatus that form no part of the claimed design.