Lab Specific Training

Over the past month, I’ve posted some results of a colorimetric assay for silicic acid.  Previous posts are here and here.  These results showed that the assay detected silicic acid after pnc-Si and PSi degraded.  However, bare silicon wafers also yielded silicic acid, according to this assay.  Since pnc-Si samples have the Si well-side surface,…

This post explains that electroosmosis in our material is higher than we expected. Jim suggested that maybe we don’t have fully developed flow in our thin material. Here I attempt to find the entrance length, or distance until fully developed flow, in our material. One needs to keep in mind that this is a continuum…

Because the Barcikowski lab intends to use the nanoparticles they sent us, relatively high yields are necessary for any step that cleans them up. This is unfortunate, because in every single separation that we’ve done (with one exception mentioned further on) we never see yields higher than about 5%. We’d thought that the problem was…

Hi all, the technique of UV Ozone bonding (of PDMS to glass, Si or pnc-Si) is now complete, serendipitously. Hsin from Miller lab want to bond PDMS to glass, they tried plasma oxidation treatment and it worked.  The method is as followed: plasma oxidation treatment for 35 sec (which did not bond the sample, when…

This data is from about a month ago and it something that Jim has been asking me to put up, so here it finally is. When Tejas runs his experiments, he usually leaves me the last mL of blood that he has from his draw in case I want to do anything with it. One…

The new oxide chips arrived this week, so I have materials for lots of experiments going forward. The current inventory stands as follows: ~100x NPN chips (mostly still in wafer form) 81x 20nm SiN + 200nm  + 10nm SiN cap 93x 20nm SiN + 200nm oxide Imaging of the membranes shows the expected images for…