In situ fabricated porous filter - characterization and biological applications

Porous filter was fabricated inside a microchannel by phase separation photo-polymerization. The porosity of the filter varies with the composition of the prepolymer mixture. Four different filter compositions varying in water and crosslinker concentration was characterized using confocal microscopy and resistance measurements. Preliminary studies showed that the porous filter can separate blood cells from whole blood and the large surface area can be utilized for protein detection assays.