I re-ran the rhodamine dilutions narrowing in on the molarities within the range readable by the spectrometer. My start sample was .5mM of Rhodamine. The wavelength I set the spectrometer at was 530nm with 3 trials of each dilution. I…

We’ve built a set up for this but it’s not incredibly user friendly right now.  It consists of a camera and a stage.  Using the macro function of the camera you can take a close up image of the chip,…

Here is a summary of results for membranes (w510X) that have been annealed without their protective oxide. 800 C RTP @ 10 C/s in susceptor 850 C RTP @ 10 C/s in susceptor 900 C RTP @ 10 C/s in…

I fixed the graph for the serial dilution of Rhodamine that I did last week and removed all absorbency values that were greater than 1.08 AU. The graph looks much more linear now with an R^2 value of .9517

I took a sample from w304 over to the Krauss Lab and had them try to image it with AFM. Here are a few pictures (for some reason the color scales weren’t included in a couple of them, but they…

I ran a series of serial dilutions with the rhodamine, to find the absorbency using the spectrometer. Below is a graph of the concentration of rhodamine versus the absorbency. I removed the concentrations which had absorbances greater than 1.7 AU…

Last week Jess helped me set up the diffusion cell with human albumin and cytochrome c. We ran 3 cells and used membranes from wafer 565. The membranes used were -1,4 (retentate 1), 3,3 (retentate 2), and 4,2 (retentate 3).…

As Jim suggested, we are not only going to reproduce what Chris and Tom did in the Nature paper but also trying to test the charge screening effect based on different salt concentrations. To do such experiments, we need to…

Hi all, you might have read that we (Mike and i) have 100 % bonding efficiency in our latest PDMS-Si wafer bonding.  On that same trial we have also successfully bonded PDMS to the new pnc-Si that Dave made for…

Hi All, Recently we have good results showing that we can bond PDMS to both glass and Si-wafer with UV Ozone treatment. We can even bond the PDMS to pnc-Si directly, although it is not clear whether the sealing is…