MEMs and membranes: a Liver Assist Device
Maria Lynch will review this article by Jeffrey Borenstein and colleagues …
Similar Posts
Leukocyte Isolation (Pt. 1)
The goal of our work is a low-cost, portable device that will perform rapid and efficient leukocyte count assays required for treatment of HIV positive patients. The device in mind will benefit from the advantages associated with microfluidic systems such as reduced reagent volume requirements and compact device format. It will utilize patterned microporous membranes…
Small Animal Model Dialysis: Nonporous and Microporous Membranes
On Wednesday Feb. 12 and Wednesday Feb. 19, limited exposure dialysis was performed on rats. In the first experiment, blood was pumped with the peristaltic blood pump through a two-chip dialysis device in an acrylic fixture. The membranes were non-porous silicon nitride so no dialysate was included in the experiment. Blood was successfully pumped through…
Diffusion through nanoporous membranes as a function of well height
For a while now I’ve been working on developing and testing the practicality of using nanoporous membranes as filters for highly sensitive assays. Traditional filter-based assays are restricted in their speed by both the time it takes for a particle to find a pore as well as the time it takes for the particle to…
Alexander Shestopalov’s Group Update: Silane Oxidized SixNy Sample and Oxidized SixNy Sample
ByXunzhiOur main purpose of this project is to reduce or eliminate the protein non-specific adsorption on the oxidized siliconnitride sample surface. By synthesis the PEG molecular on the surface, we believe we can reach the goal. There are different ways to synthesis the PEG on the surface. First is the silanes, after synthesis the silanes,…
AFM – Megasonics
I got some wafers from Chris last week(?) that had undergone different Megasonics cleaning treatments by the manufacturer. We’re trying to figure out if these treatments are actually cleaning the wafers. I’ve been having trouble getting the AFM to stay in the “right” mode for imaging with these wafers. However, I have gotten some images….
Electro-osmosis update
Here’s some data from my electrophoretic trials with polymer membranes. On this chart, both PES and Cellulose fall on the same line. In my last post I said that PES membranes didn’t seem to pass water, although I found that I was just setting up air bubbles much easier in this system because of the…