BACKGROUND Forced-air warming (FAW) is widely used to prevent hypothermia during surgical procedures. The airflow from these blowers is often vented near the operative site and should be free of contaminants to minimize the risk of surgical site infection. Popular FAW blowers contain a 0.2-μm rated intake filter to reduce these risks. However, there is little evidence that the efficiency of the...

Abstract Filter membranes (pore size 0.2 μm) are frequently used to perform a sterile filtration. To characterize the pore of filter membranes, method determine particle retention nanoparticles was defined. The Dynamic Light Scattering first analysed and calibrated correlate concentration with absolute intensity scattered light. Afterwards, standard suspensions sizes 0.150 μm 0.239 were lead th...

We have studied the hybridization of target DNA in solution with probe DNA on magnetic beads immobilized on the channel sidewalls in a magnetic bead separator. The hybridization is carried out under a liquid flow and is diffusion limited. Two systems are compared: one with a straight microfluidic channel and one with an integrated staggered herringbone mixer. Fluorescence microscopy studies sho...