Similar Posts
Viability and growth of HUVECs on nanonitride membranes – Part 2
This is in continuation to the studies that I published here. I used two types of membrane surfaces: nano nitride trenches (the back side of membranes) with pure nitride on the surface, and zero-second-etch nano nitride with a completely intact pncSi cap on the top. These two surfaces basically act as materials with two extreme…
W613 Discoloration
Given the mixed results of discoloration of RTPed samples from W613, which include no discoloration until 7 days (when the experiment was started within 2 hours of RTPing), and discoloration within 2 days (experiment started 8 days after RTP) I ran another discoloration test. This time I started the experiment within an hour of RTP,…
Measuring Gold Separations
Even though we don’t have defect free membranes, I wanted to tweak the gold setup using membranes with pinholes. Previously I was using the small scale diffusion chamber that I use for protein separations. This setup has a retentate of 2-3 uL and a filtrate of 60 uL. To do particle sizing using the Malvern…
QC on Dual Scale Membrane (lot 1383)_from Bern
We recently received 100 Dual Scale Membrane (lot 1383). As noted in Dan’s post we also had same issues regarding mix up in the labeling. In the gel box, 2 boxes (25 membranes/box) are labeled 0.625% porosity and 2boxes are labeled 1.25% porosity, thus we supposed to have 50 membranes for both porosity. However 1…
COMSOL simulation on sampling method to measure membrane permeability
Background We at Michigan have been aiming to perform sequential small volume sampling coupled with our ultrasensitive digital immunoassay to provide longitudinal data from the uSIM. We have encountered repeatability problems as well as low molecule abundancy with shortly incubated samples collected from the bottom microfluidic channel. Therefore, COMSOL simulation work has been done to…
Process Flow Update
Process Summary for the week of 12/3 -12/10/2007: Simpore Process Flow.xls JP