The permeability data is very different for films deposited at room temeperature and 400C.
The 400C deposited wafers have much higher permeability and more consistent.
w335 – RT
w336-RT
w338 -400C
w340 – 400C
Burst Pressures
http://phys.org/news/2013-03-temp-controlled-nanopores-blood-analysis.html
Background: This is a follow up to the blog that Jim wrote on the basics of TEER measurement. This is the link to my old blog, which also describes the theory and some other preliminary data about TEER measurements. The resistance (R) of a wire is the resistivity (ρ) times its length (L) divided the cross sectional area (A) of…
One area of use to explore for the membranes is desalting, the removal of salts from solutions (such as those containing proteins). Two dialysis products made my Thermo/Pierce were tested to develop a protocol and test manufacturer’s claims. These products are the mini-dialysis unit on the left and the dialysis cassette on the right; both…
Abstract Endothelial cell attachment to porous substrates via focal adhesions is initially affected by pore spacing and not absolute porosity. Maturation of endothelial monolayers via cell-cell interactions occurred over the same time course regardless of substrate porosity, pore size and contact area. Cell-matrix interactions at maturity were dictated by substrate stiffness. Data [missing figure] Fig. 4 Endothelial…
Below are a series of TEM micrographs showing a set of membranes produced last week. We RTPed these wafers at 700 (SC 062), 800 (SC 064) and 850 C (SC065) without the susceptor at a ramp rate of 100 C/s. The trend is increased pore size and porosity with increasing temperature which follows our intuition…
Karl and I attempted once again to filter particles with the SiN-NP 5 slot SEPCON chips. (wafer # 1019, 27% porosity, avg. pore dia. – 54 nm in the center, 30%, 61 nm at the perimeter, histograms below) We started trying to first pass 20 nm red fluorospheres, then block 100 nm yellow fluorospheres,…