Similar Posts
Burst Pressure: pnc-Si vs. NPN
This past year I have been collecting burst pressure data on pnc-Si and NPN. The data for 30nm pnc-Si came from my previous post, “Wafer 1059: Burst Pressure Analysis”, which also includes a wafer map. This wafer had 7% porosity and an average pore diameter of 20nm. I tested square window sizes with side lengths of 0.1mm,…
EO: Carbonized Membranes, Heating
This is a short review of a few experiments that Tom had set up this morning. Carbonized membranes: A few carbonized membranes that were used for permeability measurements were tested in EO. The membranes were left in the sepcon, which was filled and placed in a reservoir. Electrodes went inside the sepcon and the reservoir. …
“Reverse” centrifuge seperations
Back in November we were visited by Tom Berkelman of BioRad to see if he could use our NPN membranes to successfully separate some proprietary nanoparticles from IgG in a solvent with secret ingredients. These particles have an interesting absorbance spectrum as well as strong fluorescence. During that visit and in subsequent separations in the…
Acoustic Based Separation of Nanoparticles
ByAslanSeparation of Nanoparticles using surface acoustic radiation force: Surface acoustic waves (SAW) can be defined as mechanical waves which propagate on the surface of an elastic medium which most of its energy is concentrated in the surface. It’s been used in many different biological applications such as separation of cells, tumor cells, microvesicles, nano and…
Liftoff Membrane Capture for Hemodialysis
As part of our work on the NSF STTR grant for our hemodialysis device, we need to develop a device to incorporate our liftoff membranes into to facilitate the fluidics. In this post (and likely, in another post later this month,) I will chronicle my contribution to this aspect of the project: finite element modeling of…
Polycarbonate Sheet — substrate material
ByJimI worked with Paul this afternoon and finally we highly suspect the raw material used for the prototype diffusion chamber could be Polycarbonate. Paul could not provide direct evidence for the material source since he did not keep any purchase orders or materials data sheet… However, we did check our chamber with another plastic board…