PETL mixer

WHERE:  URMC ** Room # 4-7545 ** WHEN:    Tuesday April 16th & Wednesday the 17th. TIME:    9:00-4:00 P.M. Please drop off your pipettors early as we expect a good turnout. Pipettors will be done on a first come, first served basis.  Thank you!

I’ve become increasing suspicious of the membrane clogging during the hydraulic permeability experiments.  I ran an experiment where I took three fresh samples (sc 582) and pushed water through for 5, 10, and 20 minutes.  Ideally, the permeability would be the same for all three time points.  However, I observed a decrease at each increasing…

As part of my thesis (and a tie-in to the microplastics research our lab has been conducting) I’ve been working on creating a measure of membrane capacity. A robust way to do this involves using microporous chips and polystyrene beads. Previous experiments on 8 micron slit membranes have shown that phosphate buffered saline (PBS) and…

Since we last discovered our polyurethane acrylate (PUA) has a shelf life (described here) and received a new solution of PUA, we have been trying to replicate the results that we had before. Unfortunately, we have realized that this is much easier said than done. What we have found is the specific dilution of PUA…

Looking back at production over the last year, I noticed that our porosity has dropped considerably.  Now that we have a good handle on controlling pinhole density, it is time to focus on controlling morphology again.  Below are two examples of a 15 nm and 30 nm pnc-Si film produced this month and one year…