Lab Floors Getting Cleaned on Feb 22
Please plan accordingly and be sure all moveable items are off the floor the night before.
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HUVEC and Fibroblast Growth Summary
Thus far three HUVEC and two L13T3 growth tests have been conducted on substrates including glass,pnc-Si, tissue culture plastic, and untreated plastic. Only one test with untreated plastic has been run for each cell type. Cells on Si samples are not on the slits but rather on substrate surrounding. It seems that HUVEC proliferate more…
Gold Ladder
I obtained gold in 5nm, 20nm, 40nm, and 60nm through Mort/Oberdorster Lab. Separations were performed with fully crystallized samples from SC 073. Here are sizing and absorbance data: In Water I have tried 24 hour separations in diH2O (SC 073) with these particles. Here are the results: No 525nm peak in filtrate for 5nm sample. …
Endothelial Vacuolization Induced By Highly-permeable Silicon Membranes
ByJimSubmitted to Acta Biomaterialia – March 15, 2014 Manuscript as PDF Check Status
Pnc-Si zeta potential
This is kind of a shot in the dark, but I wanted to see if I could get a zeta potential for pnc-Si that was as high as predicted by the electroosmosis results. First I tried to get the membranes to break in 1mL of PBS so that the windows were floating on top of…
First attempt at Au separations with carbonized membranes
Today I tried to pass 5 nm gold through three different membranes with similar cut-offs but distinct mean diameters and porosities. All the samples I used were ozoned yesterday and tested for water permeability. Based on the absorbance measurements, it seems that the 5 nm Au passes through 582 and 558 but not the carbonized…
Membrane Anneal Study: W510X, W600 Testing
I recently tested W510X and W600 described by Dave here for air permeability, rhodamine diffusion, and burst pressure. No air permeability was observed; even a sample with one very small pinhole (W600 800C anneal) only had a permeability of 11 cc/atm*cm2*s. To verify the lack of pores I performed rhodamine diffusion on the W600 700C…