In this post, I would like to sum up all different annealing scenarios, which corresponding to different morphologies of the pnc-Si membrane so far we have observed. It should be very helpful to understand the evolution of the pore formation during the annealing. This whole evolution I believe, not only applies to the oxide/silicon/oxide stack,…
I have tested the new diffusion chamber shown in a yesterday’s post. The idea of our original design works. But there are several problems with this prototype: – Paul used a very thick material to build the clamp, which blocks the objective of the microscope system; – The upper hole in the substrate, designed for…
Jamie and I met with Don Black with an electron microscopist that consults for NaturalNano. In efforts to test out our TEM window grids, he gave us halloysite nanotubes. These are naturally occuring and much larger than the carbon nanotubes we normally talk about. The samples were prepared in 0.5% Triton X-100 in water and…
Background Hemolysis is the leading cause of unusable laboratory blood samples; accounting for approximately 55% of all unusable samples [1]. Hemolysis can affect lab results by interfering with light absorption of spectroscopic tests, or by releasing analytes into the plasma sample resulting in a false reading [2]. The syringe used to draw blood from a…
Last week I attempted to use the ozone cleaner and RTP to grow an oxide on bare 4″ wafers. I used the spectroscopic ellipsometer to measure the film thickness. I found that ~4 min. in the RTP @ 1150 C with 3 LPM of O2 grew nearly 50 nm of silicon dioxide. Using Tom’s standard…
We’ve had quite a bit of success transferring nanoporous membranes now, but a lot of questions about the exact nature of the physics at work during the transfer process remain. Pursuant to those questions, we wanted to try changing a variable — switching from nanopores to micropores — to see how that changes the behavior of…
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It’s not just that dimers can survive the SDS, it’s that there’s “an equilibrium between monomeric and dimeric cyt c in the presence of SDS” – this is shown in figure S1 curve F and G. Adding SDS to purely monomeric solutions makes dimers, adding it to purely dimeric solutions makes monomers. This means we can’t clean up the figures by simply starting with a more pure solution of monomeric cyt c.