New sputtering system

UPDATE: A look at long and short crystal dimensions (9/1/10): DLS vs. Crystal Sizes – Newest version 8/30/10 Here is a comparison of sieving curves using DLS or estimated crystal dimensions of proteins. DLS: 24 hours sieving curve. 48 hours sieving curve. Estimated longest crystal dimension: 24 hours sieving curve. 48 hours sieving curve.

For the osteomyelitis project which I have been working on for quite some time now, my collaborators and I have been working solely with 0.5 µm microporous membranes. To ensure that every membrane we work with has pores of the right size and are defect free, the two following protocols were created. The first checks…

In this post I will show that the analytical 1D model of diffusion is similar to our 3D COMSOL model, with the exception that the times do not seem to line up.  This is reasonable though since the 1D model does not take into account the non-membrane silicon pieces and enlarged volumes that occur in…

I decided that instead of trying to figure out why it was delaminating, I would simply remove the option altogether.To that end, I painted PDMS on two NPN chips up to the oxide spacer.   Attempt 1: This chip was one I laminated myself using my breath to contact the membranes. In case it’s unclear,…

I’m currently trying to compare separations between different complex protein mixture. This was my first crack at depleted human serum. This mixture has been processed so that the most common blood proteins (such as albumin and immunoglobulins) have been removed. All three trials were performed using membranes from w338 in diffusion mode. 338 has a…

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