microfluidic systems – TechConnect Briefs

Analytical Analysis of a Squeeze Film Dominated MEMS Fluid Ejector

Furlani E.P., Lebens J.A., Eastman Kodak Company, US

We present an analytical model for predicting the behavior of a squeeze film dominated MEMS fluid ejector. The device consists of a piston that moves parallel to an orifice plate, with a thin film of [...]

Simulation of a Micro Dispenser Using Lumped Models

Koltay P., Moosmann C., Litterst C., Streule W., Zengerle R., University of Freiburg, DE

In this paper the modelling of a micro dispenser by system simulations according to fluidic network theory is reported. The dispensing device under consideration (the so called “Nano-Jet” dispenser) is described in detail in [1]. [...]

Microflows with Moving Boundaries: Experiment and Simulation

Maier C., Hofer E.P., University of Ulm, DE

Surface forces and capillary effects can play a dominant role in fluidic microsystems. Therefore it is crucial for simulations to use accurate numerical approaches [1]. Furthermore experimental data gained from such surface dominated systems can [...]

Impact of Microdrops on Solid Surfaces for DNA-Synthesis

Maier C., aus der Wiesche S., Hofer E.P., University of Ulm, DE

The miniaturization of chemical synthesis procedures and their integration in complex microfluidic systems is highly interesting both commercially and scientifically. Here, dosing of microdrops for activation or passivation with high accuracy on a substrate or [...]

Dynamics in Microfluidic Systems with Microheaters

aus der Wiesche S., Rembe C., Maier C., Hofer E.P., University of Ulm, DE

The physics of nucleation, boiling, bubble growth and collapse in thermal microactuators will be presented. The boiling process exhibits an equivalence to a phase transition of second order and this leads, in contrast to classical [...]