Recent Advances in On-disk Viscous Micropumps

This work surveys recent advances of experimental and analytical development progress of the on-disk viscous micro-pumps: spiral channel, single disk, and double disk micropumps. These micropumps have attractive advantages for handling particle-laden fluids which make them key components in laboratory-on-a-chip applications. This study builds upon existing reviews and reports on the on-disk viscous micropump concept and analytical and experimental tests. It also presents a general analytical solution that estimates for the combined effect of operational and geometrical design parameters on the flow performance of on-disk viscous micropumps. This model enables microfluidic systems designers and developers to predict flow rates and pressures according to certain geometrical or operational conditions. Quantitative comparison and verifications are provided in tabular and graphical forms.