micro-fluidic devices – TechConnect Briefs

Liquid transport detection using single FET devices

Truman P., Uhlmann P., Stamm M., Institute of Polymer Research, DE

Observation and monitoring liquid transport and transport in liquids is a major task for lab on a chip applications and research. We use novel thin film FET devices based on silicon-on-insulator (SOI) substrates as planar [...]

Separation dynamics of binary liquid mixtures – Theory & Experiment

Truman P., Varnik F., Uhlmann P., Stamm M., Raabe D., Institute of Polymer Research, DE

We study how chemically patterned surfaces can be applied for the separation of two incompatible liquids and introduce a novel simplified separation scheme utilizing surfaces with an abrupt change of surface energy. Firstly we analyse [...]

A Compact Model for Flowrate and Pressure Computation in Micro-fluidic Devices

Qiao R., Aluru N.R., University of Illinois at Urbana-Champaign, US

A compact model to compute flowrate and pressure in micro-fluidic devices is presented. The micro-fluidic flow can be driven by either an applied electric field or by a pressure gradient or both. In the proposed [...]

Fast Fluid Analysis for Multibody Micromachined Devices

Wang X., Mucha P., White J.K., Massachusetts Institute of Technology, US

Recently developed fast integral equation methods for computing solutions to the Stokes' equation have proven to be a valuable tool for micro-machined device designers. The speed of these fast codes make it possible to simulate [...]