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NxStage System One Now Cleared for Night Time Hemodialysis in Europe
NxStage System One Now Cleared for Night Time Hemodialysis in Europe Posted: 19 Feb 2013 11:13 AM PST Hemodialysis is a time consuming process that typically requires multiple weekly sessions lasting a few hours each being stuck to a stationary device. The availability of at-home dialyzing has brought a new level of convenience to patients,…
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Lab tours on Friday
Prospective Graduate Students will be touring the lab this Friday from 12:30-1:00. Please be working in the lab and ready to engage!
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Burst Pressure Probability
Prior Post w/original data and images UPDATE: In the couple plots below, the minimum dimension has been changed to aspect ratio (minimum dimension/maximum dimension): For constant perimeter: alpha=1.1930, beta=.2005, gamma= -0.1380 And for constant area: alpha= -0.1624, beta= -0.0060, gamma=0.2922 In my last post I explained an experiment where multiple features were put on a single sample…
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Pre-spring lab clean! (and o-rings)
Let’s get a blast-from-the-past and go through a bunch of drawers in the lab! I spoke with Jim and it seems like it might be best to schedule it during next regularly slotted Tuesday NRG mtg. So let’s plan on meeting downstairs in the lab on 2-19 at 9:45 am. Also, I bought an assortment…
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Cytochrome C can pass through 10nm EA-treated Sepcons
Using the remaining 10nm EA-treated chips (all of the 15nm EA-treated and all of the PEG-lyated chips had either been used or broken) I was able to pass cytochrome C through Sepcons. As usual, yields were low (~8-12uL) but the curves were of high quality. The passage of Cytochrome C is not surprising because we…
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Simple PEG crosslinking on a microscope
We have re-started the PEG x-linking project at RIT. One of the goals is to create microwells made of PEG on top of a membrane in order to culture individual cells or small colonies of cells with the potential for a co-culture with a confluent monolayer on the opposite side. PEG is available as PEG-Diacrylate…
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Substrate bias
We wanted to test the effects of changing the substrate bias during the Si deposition step similar to what Dave Fang had done so many years ago. Attached is a couple of plots showing the effect of varying substrate bias on pore size and porosity. He used 15 nm thick a-Si and an anneal at…
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If you do any separations with ultrathin nanoporous membranes please read this…
I’m not sure how many people in the current group have read all the papers that we have published, but a critical one was a JACS paper from Shigeru Amemiya where he used his Scanning ElectroChemical Microscopy (SECM) to probe the permeability of our membranes at the micron scale. In the supplement to this paper,…
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BSA does not pass through Peg-lyated or EA treated Sepcons with cutoffs of either 10 or 15nm
On Wednesday we ran several separations using both the EA and PEG treated membranes. The treatment process had damaged many of the chips. Of the 10 treated 10nm PEG chips, 2 survived. Of the 10 treated 15nm PEG chips, 2 survived. Of the 10 treated 10nm EA chips 8 survived. Of the 10 treated…