No individual meetings today …

We’ve been moving to a new format for chips, trying to standardize an active area that has good yield and allows fluidic access through the chip itself. The SEPCON outer dimensions have been reused (5.4 mm x 5.4 mm). It’s a 1.5 mm^2 single slot chip area (2 mm x 0.7 mm) with vias that…

We are excited to announce our new shop that will allow any Nanomembrane Research Group (NRG) member to easily order membranes and components. This blog will go over the ordering process and provide some useful information on the ordering process. IMPORTANT Membranes come in boxes of 10 unless otherwise stated. Components come in bags of…

This is a retrial of the previously outline negative adsorption assay.  I was a little more careful with cuvettes this time around (there are very significant differences in the plastic cuvettes) and I spread out the same amount of solution over a larger area.  If exposed to more surface, more protein should adsorb and leave…

Previously we have worried about the validity of our adsorption data considering we have used it to test both sides of anisotropic membranes that have cutoffs below the size of albumin. Today we came up with the idea that albumin can be used as a probe for adsorption, not as simply a model protein in…

In my initial report on the Young’s modulus of pnc-Si, I used the generalized pressure-displacement equation to fit my experimental data to extract a Young’s modulus of around 100 GPa (Polysilicon is ~150 GPa). Unfortunately, there was quite a bit of variability in the residual stress in these experiments. I believe this variability was due…