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!
Because I’ve been having such a difficult time measuring consistent zetapotentials (a big and heartbreakingly inconclusive post on those efforts is forthcoming) I decided to use one of my silver-coated SNMs as an EO pump and see if changing the voltage applied to the membrane changed the rate of EO. And I’m very happy to…
In this post we look at the effect of altering the area available for filtration on a standard 5 slot SepCon. Karl and I did this by simply cutting gaskets such that they covered different regions of the surface of a chip. We have three configurations, 1, 3 and 5 slots. Here’s a picture of…
Permeance Testing Sepcons were built with 500 nm 5-slot chips. Permeance tests were performed on Samples A-C. Nitrogen gas was pushed through the membrane at a given pressure, and the height on the flow meter tube (green graduated column pictured below) was recorded according to the location of the center of the silver ball. No units…
After seeing in previous posts how optically transparent the SiO2 membranes are, I went about seeing if I could quantify this in comparison to the SiN membranes and also CoStar PET track-etched membranes. In order to do so, I ‘seeded’ red 1µm beads (in 1X PBS) onto each type of membrane (the SiO2 and SiN…
Josh has just started teaching us how to play with these; some early findings: – So far, standard centrifugation results mostly on the caking of lipids that clogs the membranes. – Use of the pressure cell has shown some promise, we have passed 120nm lipid-nps through 400nm pores @10PSI. The result? 70nm particles… – Reverse…
In my last post, I described a new process for reducing fluoropolymer build up during RIE. Unfortunately, the new process had substantially lower yields (half) than the process I was using before. In this post, I am detailing my attempts to make the MgF2 nanomembranes stronger to try and improve the yield of my current etching…