Purchasing 101

The idea of this project started when we were writing a mini-review about cell-substrate interaction. Although most of studies of cellular responses to porous membranes have pointed towards a multiphasic response with the same trend of changes with respect to the pore sizes, we also found some variation in the results. We suggested that some…

Last week I mentioned that a two step anneal may help with the tears that are forming on the membranes when they are annealed post-etch.  The recipe I used was a 10 C/s ramp to 600 C, hold 60 s, 10 C/s ramp to the setpoint, hold 60 s, ramp down.  I annealed membranes with…

Over the last few months, I have been trying to reestablish my SERS measurements, and generate a paper based on SERS sensing with our nanomembranes. Previously, I have created magnesium fluoride coated substrates that seem to have better SERS performance than just NPN alone. Combining our TEM imaging with SERS data would be a powerful…

Follow up to this post.  As a brief reminder, I have performed 3-D simulations of separations in large and small volume systems.  I have defined an effective diffusion coefficient that takes into account the membrane hindrance and compared this to free diffusion.  As the Deff/D0 ratio drops, this means the membrane has a higher impact…

The graph below shows the burst pressures for302, 303, 304, 307 wafers.