I made a small presentaion for tomorow. Promise to upload it on the web tomorrow (can’t make ftp work right now). polymer2
Category: NRG
Spectrophotometer raw data
Upload just for future reference. This includes the data of KMnO4 serial dilutions absorbance and the stir cell diffusion experiment.
Posted in NRG
Adsorption Quantification VII
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…
Posted in NRG
Stir Cell KMnO4 Diffusion Curves: strange and interesting
I got three pinhole-free membranes from Karl after the inspection. They are from wafer#612. Locations are (-3, 1), (-3, 2), and (-3, 3). I used the UV/Ozone machine to oxidize and charge two of them while leaving the third one…
Posted in NRG
KMnO4 as a Platform: absorbance vs. concentration
I discussed with Jess the possibility of using a negatively charged dye. People did use such dyes before but we probably need to order them at this time. Since now we can use the spectrophotometer to determine the concentration of…
Posted in NRG
WordPress updates
I’ve upgraded the WordPress publisher to version 2.6. The most useful change is the ability to track changes to any post/page, compare revisions, and revert to an older version. Here’s a video showing the changes: https://videopress.com/v/mARhRBcT/fmt_std Additionally, I’ve installed some…
Posted in NRG
Desalting with Intact Membranes: Continued
As mentioned previously intact membranes show a flux comparable to membranes with pinholes during desalting experiments. To confirm this a third intact membrane test and two pinholed tests were run under the exact same conditions. Previous pinholed samples had different…
Humidity is Affecting PDMS-pncSi Bonding
A few weeks ago Dave dropped of a humidity monitor for the third floor equipment room. Since then I have been recording the humidity every time I run a UV Ozone process for PDMS-glass or PDMS-pncSi bonding and there seems…
Change in Pore Image Processor
Yesterday I found a bug in the pore image processor. The “i” hotkey is supposed to save the current image, but it wasn’t working. I contacted Mike Bindschadler and he fixed it. The updated version can be found here. The…
Attempt at UV/Ozone to Clean Membranes of Organic Impurity
I tried to clean samples from W615 using UV/ozone to cleanse the membranes of the organic impurities we have been seeing lately. I followed the UV/ozone protocol, with a stage temp of 25C and treatment time of 5 minutes. No…
