In this paper, the phenomenon of light-driven diffusioosmotic (DO) long-range attractive and repulsive interactions between micro-sized objects trapped near a solid wall is investigated. The range DO flow extends several times size microparticles can be adjusted to point towards or away from particle by varying irradiation parameters such as intensity wavelength light. “fuel” photosensitive sur...

In this work, a 3-D simulation is performed to study for the solid-fluid coupling effect driven by piezoelectric materials and utilizes asymmetric obstacles to control the flow direction. The result of simulation is also verified. For a micropump, it is crucial to find the optimal working frequency which produce maximum net flow rate. The PZT plate vibrates under the first mode, which is symmet...

The novel electrostatic micropump model for applications such as in biomedical drug delivery is presented. geometrical arrangement of the coupling rigid electrodes lets us exploit our mathematically rigorous boundary integral equation formulation and its solution. Thus, charge densities involving fringe effects on plates are obtained by means analytical regularization method (ARM) constructed a...