From this updated post its evident that the O2 RTP treated samples start discoloring after ~10 days. Also, the O3 + O2 RTP treatment is probably better in preventing dicoloration than just O2 RTP. So amongst all the samples, the O3 + O2 RTP treated one starts discoloring at the last.
Dave deposited a series of wafers last week at different temperatures. SC 166 -SC 173 were deposited between RT and 300C. These wafers had Jess’ E.O mask pattern ( circular sepcon) with single , 3,6 and 9 squares. The wafers were mostly pinhole free.In order to determine if deposition temperature affected the nature/ strength of…
Thanks to our collaborators at the University of Chicago we have now used NPN to demonstrate sodium/hydrogen exchange functions at the level of single EVs. This is first-of-a-kind evidence of protein function in individual EVs. It will be officially published in Communcations Biology and will soon be located at this DOI. What follows are key…
My previous post on Electroomosis theory describes the deviation between expected and calculated zeta potential using the Smoluchowski equation. In this post I will explain another method of solving for the zeta potential and I will consider the mistakes made in the previous calculations. In a paper by Kim(Mukhtar) in J. Membrane Sci. (1996), the…
I realized last week that I had made a pretty substantial mistake with my quantification which involved my mass standards. Half way through running the gels for the previous study I had accidentally started making my mass standards at a higher concentration but counting them in the quantification as their initial value. The bottom line…
The NPN tenting mechanism I’ve described in a few different posts has relied solely on mechanical technique. I poke the substrate with tweezers, or delaminate it with high electrical forces, or heat it up and let it contract while in contact with each other. It would scale very poorly if we tried to make this…
Last week, Lingyun and I deposited 30nm SiO2 onto both sides of wafers 335, 341 and 345. Unfortunately, these wafers weren’t in too good shape, so there are only a few intact slits without pinholes. I then took a few chips from each wafer and did RTP (800C, 5 min, Ar). I’m doing discoloration studies…