These are cross sections of my comsol diffusion model. Each chip has 6 square wells terminated in a membrane. This cross section cuts across the two middle wells. Concentration contours are in 0.025 intervals.
6 hours:
12 hours:
18 hours:
24 hours:
I used the spectroscopic ellipsometer to measure several wafers deposited using the AJA system. I verified film uniformity as well as film quality using index of refraction as the metric. The term “w/ Bias” refers to an applied RF power over the substrate. The bias adds energy to the surface as adatoms re-arrange during deposition…
A couple weeks ago, I showed some preliminary data on H2O2 detection via the Amplex Red Assay, which is a project for one of our high school students. This generated some discussion at the last NRG meeting about diffusion through “nonporous” membranes. Jess wanted to look at very small molecule diffusion in her set-up so…
Last meeting, we discussed the possibility of the storage gel-boxes outgassing a residue onto the porous SiO2 membranes, as evidenced by cells not adhering to the membranes and difficulty in acquiring SEM images. Possible Gel-Box Outgassing on Porous SiO2 Membranes Several cleaning methods were utilized in attempt to clean the membranes, such as O2 plasma,…
A two multi-channel chip device was fabricated with gaskets and PDMS caps. The Upper fluidic
Today I tried to pass 5 nm gold through three different membranes with similar cut-offs but distinct mean diameters and porosities. All the samples I used were ozoned yesterday and tested for water permeability. Based on the absorbance measurements, it seems that the 5 nm Au passes through 582 and 558 but not the carbonized…