Permeability and burst pressures data for new wafers

In my previous post, I mentioned the effects of varying electrode geometry on the TEER value measured from COMSOL simulations. I had assumed that membrane has uniform porosity i.e. 100% active area, which is the case with the commercial polymer membranes. pncSi and analogs, however, have only a a finite section of its total area…

Background For the in vitro portion of our dialysis project here at UR, we have settled on using two major experiments to test our devices for eventual transition to an in vivo model. These experiments include a single pass system using multiple syringe pumps to observe the effects of fouling on our membrane as well…

I was concerned that even though my calculations for etching the microporous MgF2 material show that the silicon nitride was being removed completely, not all of the silicon nitride was indeed being removed. Hypothetically, the presence of additional remnants of silicon nitride could be causing additional film stress and cause membranes to break more frequently. I…

This is probably not of general interest, but for the sake of full disclosure, I have spent considerable time working with our wafer supplier (Virginia Seiconductor) to resolve some issues regarding the surface quality of their wafers. It would have been much more productive to simply switch suppliers, but unfortunately, they are the only place…

These experiments were conducted during the week of 5/10/2010 – 5/14/2010. To recap on this project, Barrett and I have been working with Dr. Harold Smith in the hopes of developing a drug screening test that consists of small-scale diffusions. In these experiments, we are working with APOBEC3G (A3G), a protein-RNA complex that is active…

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, but you must make sure the horizon line is straight i.e. camera and stage are…