In this week’s meeting there was a request to have Maryna and I make our BP and AP data available online. While Maryna is at the Gordon Conference I thought I would upload what I have. The attached spreadsheet contains two tabs, one for AP and BP. Wafer number and position of each test sample are shown, along with other information. Enjoy!
I update this post weekly to reflect newly tested wafers.
I recommend we review this article in NRG or journal club – it was just published online in Advanced Functional Materials this week. I see a lot things in this paper that appear to be motivated by our work. They showed SFM/AFM membrane thickness step height, NP gold separations (and cake formation) and water permeation/permeability. Unfortunately for…
The purpose of this post is to see if there is a pattern in the Pore Density vs. Pore Radius graphs at certain manufacturing conditions. The following wafers all have widths of 15nm and RTPs of 1000. The porosities range from 6.48% to 8.33%. **** note: the y-axis label should actually read “pore density (#/nm2)”…
Introduction The modular μSiM is based on a 96-well plate format with a 100 μl open well. While these devices have proven extremely useful for various barrier models including the blood-brain barrier1 and the tendon-vascular interface2, there is a need to transform the open well into a fluidic channel. A closed channel device would enable…
For the first time, we did time-lapse phase microscopy (1 frame / 5 seconds) looking at endothelial cells through the ITO in the static BBB device (device A bottom left well) and measuring the TEER concurrently. Here’s the video, just shy of 15 minutes of recording. (reporting a low resistance: 5-10 ohms, shorted). TEER Test…
I have had a chance to play with some of the chips from Lot 1278, specifically the design with the 2 micron slots. Results are a bit of a mixed bag. Wetting these chips continues to be a challenge. My first attempt to use the vacuum wetting protocol in ethanol resulted in a broken membrane,…
Here are the results of diffusion based protein separations at different salt concentrations and 50kD Microcons: We see a sharp cutoff between 31 and 45kD. Separations look like they have progressed further in 10mM salts rather than 100 mM (this is the opposite of what we see in pnc-Si). The 100kD data may also support…
Thanks Karl. I will put these through a JMP analysis this weekend.