Vapor based PEG deposition
This paper talks about PEG monolayer deposition using CVD. Here is the link for Ultrathin Poly(ethylene glycol) Monolayers Formed by Chemical Vapor Deposition on Silicon Substrates
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E-beam Deposition of Ag, Cold ALD Runs, and Sepcon Assembly For Making a Nanofluidic Transistor
Last week I conducted a variety of experiments to try to make a nanofluidic transistor (a device described in detail in this previous journal club post). I did some light optimization of the E-beam deposition of Ag films over a 3nm Ti adhesion layer in the PVD lesker machine and found that 12nm of Ag gives…
Quick Nanoparticle Separation Update
20nm polystrene beads in 1x PBS passed through w218. This wafer looks a little strange, like it was not fully etched (Dave do you know what happened to this one?). This was just a first stab at the benchtop diffusion with PS, so I didn’t use a “good” membrane. At any rate, the PS went…
BdEC/T24 co-culture: invasion assay (preliminary)
ByHenryIntroduction Motivation: We want to assess if the bladder cancer cell line T24 would influence the baseline characteristics of bladder epithelial cells (BdEC, a.k.a. ATCC® PCS-420-010™) when the two cell types are cultured together. Ultimately, we are interested if the T24 induces BdEC malignancy (turning the normal epithelial cells cancerous). Goal: Investigate if BdEC monolayer will break…
RTP Ramp Rate Effect on 6W Bias pnc-Si Stack Increases Pores Size Slightly
Purpose: We want to know the effects of the RTP process on pore size, pore density for the biased films coming out of the AJA. I believe that the RTP ramp rate is important for forming bigger pores. Some work (Joe Qi Thesis) has indicated that the pores come out more circular as the wafer is…
New sputtering system
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Fouling Mechanism in Josh’s 20 nm, 100 nm SepCon data
These fits are done using the math outlined in this previous post. We assume an average pore size of 50 nm and an approximate number of pores in the membrane of 1E9. 20 nm particles: 100 nm particles: Next, we were curious whether we could show the transition happen from pore constriction to…