NSF STTR Goals
- Phase II submission August 1, 2016 or January 30, 2017
- UR Tasks – Biocompatibility by Feb. 1 2016
- Channel design optimization by November 2015
Please plan accordingly and be sure all moveable items are off the floor the night before.
Below are some SEM images of a burst 30-50-30 NSN membrane in a SEPCON pattern. Many similar chips failed at lower pressures, but this one survived to ~5-7 psi. (didn’t keep close track of the chips after they were burst, so I’m not sure which pressure this burst at, but it was within the 5-7…
I took some force curves a while ago to see if there was any difference between wrinkled and taut membranes. Here, I present only the data with a 15nm ‘trigger’. The trigger is a user-defined parameter that sets the maximum deflection of the cantilever during a force curve acquisition. THe y-axis in these graphs is…
Anant and I found a protocol in Biomaterials a few weeks ago that allows colorimetric determination of silicic acid. It was used to track the degradation of PSi samples in Tris-HCl buffer. I optimized this protocol and got standard linear curves, as reported in the protocols section of the blog here. Here, I report the…
I finished the first experiment to look at rhodamine transport across commercial transwell membranes. I was mainly interested if there would be enough transport into the basolateral chamber to measure the rhodamine with the spec. Experimental details: both chambers in PBS and at room temperature, spinning on the rotomix, 0.5mM initial rhodamine in donor; sample…
Over the last week, I’ve run a discoloration assay similar to one run a while back (Barrett’s post here). It was demonstrated in a subsequent paper (Agrawal2010) that annealing the pnc-Si films prevents discoloration of the membrane, which he tied to the nanomembrane remaining intact. I was given a few chips from the recent TEOS lot,…