PETL mixer

Sabrina’s post showed that on a bench top, with ‘blood’ source and return at ATM, the transmembrane burst pressure was between 0.5 psi and 1.5 psi, (initial and after DI or PBS flow for four hours). Extrapolating from Burst pressure chip tests for the 10 mm long HD chips, we can expect the burst pressure to be somewhere between…

https://www.seas.harvard.edu/news-events/press-releases/harvard-scientists-design-new-adaptive-material-inspired-by-tears

We desire to test the electrical perfomance of our membranes in the iBidi chamber. For comparison, I am using a gold standard Ussing chamber format to examine the contribution of our membranes to the overall frequency response of a system. I am using both a matlab model and a web-simulator (www.circuitlab.com) to examine an equivalent circuit model…

I got some wafers from Chris last week(?) that had undergone different Megasonics cleaning treatments by the manufacturer.  We’re trying to figure out if these treatments are actually cleaning the wafers.  I’ve been having trouble getting the AFM to stay in the “right” mode for imaging with these wafers.  However, I have gotten some images….

With the installation of the new STED (STimulated Emission Depletion) system in the medical center, I have finally been able to work on imaging individual exosomes (that we know are exosomes because they are labeled for exosomal markers) that have been captured on our membranes. Now, I won’t go fully into the details of how…

I’ve been working on trying to fill in some of the blanks of the permeability paper, and I’ve been fiddling with the water permeability data. I plotted the old water permeability data as a scatterplot, and while there looked like they could be a linear relationship with porosity, it was definitely missing some medium porosity…