A planar surface acoustic wave micropump for closed-loop microfluidics

A planar surface acoustic wave micropump for closed-loop microfluidics

Development of a Surface Acoustic Wave Planar Motor under Closed Loop Control

This paper describes the development of a Surface Acoustic Wave (SAW) planar motor under closed loop control, which can be applied as an ultra precision multi-axis manipulator. In papers presented so far on this topic, a SAW motor is driven in open loop. The slider is manipulated by inducing a repetitive small number of wave periods. In this way a slow slider motion can be generated, which howe...

Experimental and numerical studies on standing surface acoustic wave microfluidics.

Standing surface acoustic waves (SSAW) are commonly used in microfluidics to manipulate cells and other micro/nano particles. However, except for a simple one-dimensional (1D) harmonic standing waves (HSW) model, a practical model that can predict particle behaviour in SSAW microfluidics is still lacking. Herein, we established a two-dimensional (2D) SSAW microfluidic model based on the basic t...

Droplet microfluidics on a planar surface

This work reports on the modelling of, and experiments on, a method in which liquid is transported as droplets on a planar hydrophobic surface with no moving parts, merely through electrostatic forces generated by the underlying electrodes. Two-directional transportation along a straight electrode path and across a junction, fusion of two droplets and methods for importing, exporting and filter...

A Planar Electroosmotic Micropump

Electroosmotic (EO) micropumps use field-induced ion drag to drive liquids and achieve high pressures in a compact design with no moving parts. An analytical model applicable to planar, etched-structure micropumps has been developed. This model consists of pressure and flow relations in addition to an analytical expression that can be used to estimate the thermodynamic efficiency of planar EO p...