Metallized Membranes

I tested all the microbeads that the Gaborski and Lapizco-Encinas labs own.  The results are summarized below.  The sizes ranged from 50 nm to 2 µm.  I mixed them to concentrations of 0.2 g/L for all bead less than 1 µm and 1.0 g/L for all 1 µm or greater.  Interestingly, the scans look rather…

Introduction The on going work for the dialysis project at UR has undergone changes and many hours of trouble shooting over the past semester. We are at a point now that I would like to share all the work I have done up until this point including assay development, method progression, and the experiments we…

The BT method mentioned in this post seemed to give stable particles, but the BSA-Au did not work in separations.  After about 24 hours, the particles retained pink color but seemed to settle in tubes.  This may be due to reversable flocculation, not aggregation.  The retentate and filtrates in separation experiments both lost all color,…

Here is an attempt at the active area figure using the “newer” EO membranes (SC172).  Here is the raw flow data for the three membrane sizes: If we take the slopes from this figure, we get the flow rates in uL/min.  We can then plot against active area: We get a pretty nice fit here,…

These are cross sections of my comsol diffusion model.  Each chip has 6 square wells terminated in a membrane.  This cross section cuts across the two middle wells.  Concentration contours are in 0.025 intervals. 6 hours: 12 hours: 18 hours: 24 hours: