I used the source meter that Chris brought over and tested the voltage at points across the chamber. I set up the system with 1x PBS at 15V (~10mA) with a pinholed membrane. I tested the voltage drop at the…
I used the source meter that Chris brought over and tested the voltage at points across the chamber. I set up the system with 1x PBS at 15V (~10mA) with a pinholed membrane. I tested the voltage drop at the…
I guess we weren’t sure if I was actually drawing rhodamine back through the membrane or just bleaching it. So I made a new apparatus which consisted of a sawed off sepcon mounted on a slide with channels etched into…
I’m trying to find the best method to stain proteins on nitrocellulose, so we can easily see the protein on the NC membrane. I first tried Coomassie Blue which did not work very well with the NC. The Coomassie was…
Given the low burst pressures of recently produced wafers Chris requested I burst pressure test some samples in two different orientations: well side facing away from the positive pressure source and well side facing towards the pressure source. The standard…
Today I built a small scale electrophoretic cell using the components from Lingyun’s study. I drilled out his cell and affixed a coverslip to the bottom. I set up a pinholed membrane just like our standard diffusion assay (with silica…
Last week, five wafers were produced – three had a double 3500 A wet oxide growth/strip and two had a single 3500 A wet oxide growth/strip. From Jess’ AFM work, an as-is wafer showed a high density of 5-7 nm…
I oxidized 2 intact chips from w639 using the following protocol: 10min with secondary generator, 15min with both primary and secondary generators. This protocol is slightly different than my normal protocol (10min 2nd, 5min 1st+2nd, 10min 2nd) because I messed…
The ultimate experimental goal of the desalting project is the removal of salts from a salt/protein solution while fractionating certain sized proteins with maximum protein retention and recovery.Thus far we have characterized the flux of salt through our membranes which…
I’ve tried to get some more data for the phenomenum that may be electro-osmosis in our electrophoretic cell. In the last post I looked at the rate of passage of 1x PBS in pinhole membranes from w621. After that I…
JP handed me a stack of wafers today, and I went over to the Krauss Lab and with the help of Jack Calcines got some AFM images. I didn’t have much time to play with, so I tried to get…