Figure 2. Construction of a cell microarray chip.

(a) A real picture and (b, c) SEM images of a cell microarray chip. The microarray chip comprises 20,944 microchambers in a plastic slide of slide glass size. The microarray chip has 112 (14×8) clusters of 187 microchambers. (d) Each microchamber is 105 µm in width, 50 µm in depth and 300 µm in pitch, and comprises a frustum with a 68 µm diameter flat bottom for the accommodation of erythrocytes as a monolayer.