Slides for Jan 12th STTR Update
01-12-16 NSF STTR Meeting Slides in .pptx format
01-12-16 NSF STTR Meeting Slides in .pptx format
Katia Lyubarskaya in Alex Shestopalov’s lab has been testing different surface conditions of oxidised NPN membranes. I’ve placed her data below. (We used chips from wafer 1070) We started by looking at chips that received different chemical/plasma/thermal processes to create an oxide layer. The thermally treated sample has a significantly higher Oxygen peak, but…
As I mentioned in my previous post, there are a lot of problems associated with the technique for testing the ability of a CytoVu assembly to act as an assay that I had been trying to use before. Several possible sources of error were apparent, such as the difficulty inherent in consistently pipetting such small…
My original post reported burst pressures on rectangular windows with the chips trench side down in the fixture (pressure from below). These values are low compared to square window pressures. My pressures ranged from 2 psi to 12 psi while square windows achieved 10 psi to 50 psi (Sarah Wayson’s post on square windows). So I did a limited set…
The human IgG did not seem to diffuse through the membrane the first time we conducted a diffusion experiment. Barrett believed that the lack of diffusion was most likely due to protein aggregates blocking the pores. So, the human IgG was filtered, and this post is the result of a second round of diffusion experiments….
Using a 6″ wafer, we start with 50 nm of RV SiN, then deposit 40 nm a-Si followed by 20 nm of SiO2. RTP of 1050 C, 100 C/s, 60s. JP patterned the wafer to make standard SEPCON chips. The pores were transferred to the SiN using RIE. The RIE etches faster at the perimeter…
I have observed that in some cases the rate of EO can go up or down over the course of an experiment. Often the initial burst in the first 5 minutes is high, then the rate may stabilize or drop. I have observed that the rate of EO seems closely related to the current. Here…