Hemo-Dialysis Channel Flow Characterization
Dialysis Rate: 10 mL/min, Péclet Number: 1, Membrane Width: 700 µm, Channels per chip: 17


Péclet number
Pe ∝ H
Pe ∝ 1/L
Pressure Drop, P
P ∝ 1/H3
P ∝ L
Dialysis Rate: 10 mL/min, Péclet Number: 1, Membrane Width: 700 µm, Channels per chip: 17


Péclet number
Pe ∝ H
Pe ∝ 1/L
Pressure Drop, P
P ∝ 1/H3
P ∝ L
I repeated the autoclave experiment from earlier this week, but this time I also used the Sepcon format. I used wafer 662, which was contaminated with large spots. This was done in the oven in RPMI-1640 with FBS (no RTP). I think my 0 hour pictures were accidentally erased from the camera, but I think…
Today I performed a coating of n-Dodecyl β-D-Maltoside (“DDM”) on PDMS in an attempt to block protein adsorption (reference). The reference describes two different procedures, one in which the protein being incubated on the PDMS surface is in solution with DDM, and one in which the DDM coating is performed before the sample is washed…
While performing an experiment to study HUVEC growth rates on various substrates, I observed an interesting phenomena on the oxide membranes. I was using 120nm, nonporous, 600C annealed SiO2 membranes in this trial. The cells were observed at least once per day over a course of 173 hours from seeding. The growth rates and quantitative…
Chris asked me to do some scans of samples last week but I didn’t have time to get to them. I was able to scan them today since I was setting the AFM up for my class anyway. I took 1um square scans (512×512) at 1Hz for all samples. The target and set point voltages…
Last week, I deposited silicon nitride/ amorphous silicon/ silicon nitride stack and then annealed the free standing stack after etching the substrate. The nitride film was deposited with 25W bias and the silicon film with 5W bias. The thickness for the nitride film is 30nm where it is 25nm for silicon. One of the initial…
Ring Resonators are photonic structures that have a very repeatable behavior. As light is guided along a path, it can evanescently couple into a very closely positioned wire (submicron gap). If the wavelength of light is just right, constructive interference can occur, causing the rings to resonate (lost through scattering). Necessarily, this causes a drop…