In an effort to better understand and check Karl’s model of sieving, I’ve built a significantly simpler version. The goal is to investigate the potential benefits of thinner membranes in dead-end filtration and separations. In my model 1 ml of…
In an effort to better understand and check Karl’s model of sieving, I’ve built a significantly simpler version. The goal is to investigate the potential benefits of thinner membranes in dead-end filtration and separations. In my model 1 ml of…
Transendothelial electrical resistance measurements are expressed in the units . Where the measured resistance is multiplied by the area of the membrane to enable a comparison between measurements in different systems. We have often wondered why, but the reasoning for…
Last fall we decided to try to integrate a filter immediately upstream of Vincent Tabard-Cossa’s nanopore DNA sensors. The idea is to assemble back-to-back a NPN membrane a standard nitride membrane used in Vincent’s nanopore fabrication system an oxide spacer.…
The blog has migrated to a new hosting provider. This means that the passwords for owncloud and the blog are no longer in sync. Owncloud has been upgraded from 5.0.18 to 7.0.4. The passwords have not been changed and are…
There are now two ways to sign up to receive new blog content by e-mail. The original way was disabled for a few months, but is now back. This is the approach that creates a beautiful e-mail with full post…
The company Protochips is making interesting microfluidic chips and systems for electron microscopy. See this page and this movie. Note their use of integrated spacers as thin as 150 nm to create a flow channel between back-to-back membrane chips. This…
Very last minute but here goes … Voting closes at 7 pm tonight. Vote for 2! [yop_poll id=”4″]
Bhimani(Ward)10NDT This is a useful paper for our work on Hemodialysis. The authors examine the clearance rates of urea, B2 microglobulin and phosphate as a function of dialysate flow rate . Two things surprise me in this paper: 1) the…
The typical dialysis center experience targets a urea clearance value of KT/V = 1.4 (KT/V is explained by Dean here). We can use this knowledge to solve for the clearance rate of a typical dialysis center experience. Assuming 40 L…
Final-Program-MMD-2014.prog_ June 19 Random Notes • Blood Stasis is the main cause of thrombosis • 23 French can access the venous system • 3 French per mm • Extracorporal Membrane Oxygenator used in the treatment of Cardiogenic Shock ◦ Use…