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The Long Road to Wearable Dialysis
Directory containing article and presentation Nature Article about Willem Kolff
Zeta Potential Measurements for PES and Cellulose
Using streaming potential data collected via the flow device Jess created, I have attempted to recreate the Zydney findings for membrane zeta potential. Ag/AgCl electrodes were used in 10mM KCl, mimicking identically the method outlined in Zydney. Data are below: The streaming potential for both trials of PES membranes varied significantly after 60 minutes in…
Variability of Shear Induced Endothelial Cell Alignment on Various Substrates in a Microfluidic Device
ByAlec-Intro The mechanobiology behind endothelial cells has been extensively studied in recent years. Shear stress as well as substrate stiffness have both been shown to influence endothelial cell signaling and morphology in vitro [1,2]. However, the combination effect of both shear stress and substrate stiffness on endothelial cell function has not been elucidated to date. Reinhart-King et…
Shadow Mask ITO Deposition Characterization
Josh has been kind enough to fabricate a shadow mask for me to create interdigitated electrodes without the hassle of photolithography and etching. In order to be able to use this method, I want to make sure the produced electrodes are the same or better than the old method. I worry about shadowing effects due…
UV/Ozone is finally ready
ByJimOur two O2 regulators arrived this week (it figures we would have two to arrive within a day of each other after waiting for weeks to have one). Tom and Lingyun got to work right away. The image below shows that the UV/Ozone system does reduce the contact angle dramatically when used with oxygen (recall…
Discoloration in flipped sample – II
I repeated the experiment with samples from #703. Two samples were in a dish with one flipped over. Again, the ‘well side up’ sample (flipped) discolored earlier as seen in the 24 hour time point in the figure below.