I set up diffusion experiments using the wafers that Tom was able to pass gold through in DI H2O using pressure. 5nm particles do not pass in 24 or 48 hours. If we have extra samples I will be testing 5nm particles in 10mM KCl.
A collaborator of mine is interested in arranging quantum dots on a surface to demonstrate something called super irradiance. All of the sub-resolution particles could emit as one object (think laser) if the conditions are just so. Ideally, a bunch of quantum dots would be stacked closely together (but not touching) in a repeating fashion….
I did an experiment earlier this week in the Sepcon and flat format. I intentionally broke membrane windows so that I could compare chips with no intact membranes vs. chips with 1 intact membrane (and also the effect of autoclaving). Unfortunately, all of the flat chips discolored overnight, so I couldn’t see any differences between…
The battle for soft membrane coatings wages on as we continue to optimize polyurethane acrylate (PUA) coatings for our osteomyelitis project, whose background is described here and here and initial progress is described here. Since our last update, we have honed in on our most promising recipe and tried to fine tune its settings in…
Since I’m now back pretty much full time on the filter project, I’ll give a quick update about where we stand and where I’m going with it, as well as some (negative) results from this week. On the membrane transfer side of things, we finally have a tool that can produce fine enough vapor…
I did a quick experiment in order to show everyone what the Tecan allows us to do. I made a dilution curve of rhodamine 6G in PBS and measured the absorbance and fluorescence with the fluorimeter. I first did an absorbance scan and found that the maximum absorbance was at 530nm (panel A). Then I…
Yaron has acquired an Omega rotameter (FL-3803ST) with interchangeable flow tubes. The tubes operate in three different ranges low (6-61 mL/min, 042-15-N), medium (150-1,682 mL/min, 082-03-N), and High (1,000-23,752 mL/min, 034-39-N). I’ve attached an excel file with the calibration data plotted. We fit the curves with polynomial trendline to get equations. Also in the workbook…