Carbonization and Discoloration, final time point

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…

This post is a brief update on the previous post of HUVEC migration on 0.5 μm porous substrates.   Brief Recap We compared cell migration on nonporous (np), 0.5 μm low porosity, and 0.5 μm high porosity SiO2 membranes. Low and high porosity refer to a center-to-center distance of two or three pore diameters, respectively. For…

I hope to bring this question to our group meeting. As we discussed before, we know that Cl- can be absorbed at the gold surface to screen the applied positive charge. We are using R6G as the filtration species, which is positively charged. So we must either use DI water as the buffer solution (we…

Summary: Dan and I went to Woods Hole Oceanographic Institute to learn about the current state of microplastics research. There were a number of things that we learned that we did not know. The common sentiment among researchers agreed climate change was a much bigger threat to humans than microplastics, but the reality and immediacy…

In continuation of the previous post, its been further observed that O2 RTP treated samples remain unchanged whereas the Ar RTP treated samples started to discolor after a week, as shown in the following images: In order (left to right)1. Ozone+Ar RTP2. Ozone+O2 RTP3. Control (Untreated)4. Ar RTP5. O2 RTP

This was mentioned in the meeting today, and I’ll try to describe what’s going on here. We start out with a system with a smaller volume on the top of the membrane: If we start out with 10 mg/mL in the retentate, and assume perfect equilibrium of the protein/particle: The concentrations in each compartment would…