Author: Aytug Gencoglu

Knowledge | NRG

Modeling EOF and Electric Field Gradient at a Microporous Membrane
ByAytug Gencoglu October 23, 2013

I used COMSOL for finite element analysis (FEA) modeling of EOF and DEP at a microporous membrane in a PDMS microfluidic channel. Effects of two parameters were determined: Membrane thickness, and spacing between pores. The modeled membranes had a 25×25 um surface, and a thickness of either 100 nm or 500 nm. Pore diameter was…

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NRG

EOF&DEP simulations for 300 nm membranes
ByAytug Gencoglu October 9, 2013

We have considered SiN membranes in PDMS channels as EOF pumps and as constrictions for insulator-based dielectrophoresis (iDEP). For EOF, thicker membranes may yield greater flow rates. For iDEP, a smaller membrane porosity, meaning fewer, smaller holes on a given membrane area, are likely to result in more effective iDEP trapping of particles. I built…

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