PhD Committee Meeting and Internship with Sartorius

UPDATE: A look at long and short crystal dimensions (9/1/10): DLS vs. Crystal Sizes – Newest version 8/30/10 Here is a comparison of sieving curves using DLS or estimated crystal dimensions of proteins. DLS: 24 hours sieving curve. 48 hours sieving curve. Estimated longest crystal dimension: 24 hours sieving curve. 48 hours sieving curve.

We have always speculated that the substrate bias during the a-Si deposition had a strong effect on pore morphology of pnc-Si. Here, I looked at three 15 nm silicon films deposited with 00W, 25W, and 50W substrate bias. Recall, that the substrate bias applies rf energy to the substrate surface so that impinging Si atoms…

In response to last meeting: We tested more controls to help support our idea that the ADSC are migrating toward HUVEC network and prematurely breaking them down. We used a 100% Geltrex coated cytovu gasket to test if ADSC are attracted to something in the Geltrex causing them to migrate. The ADSC did not migrate…

We still have plenty of things to do, but after five weeks working at the UR, we have come a long way: – Chip production for instructional use:  done – Design and production of SU8 mold: done – Protocols for (@Fisher) manufacture of micro and milli (silhouette) fluidic devices: done – Construction and testing of chips…

In my initial report on the Young’s modulus of pnc-Si, I used the generalized pressure-displacement equation to fit my experimental data to extract a Young’s modulus of around 100 GPa (Polysilicon is ~150 GPa). Unfortunately, there was quite a bit of variability in the residual stress in these experiments. I believe this variability was due…