UV Ozone treated W404 sample testing (benchtop) :
In EGM
In L15
In DMEM
In each row, the first two samples (from left) are UV Ozone treated whereas the next two are not.
It can be observed that there is no significant difference in discoloration due to the treatment after ~15 hrs.
Note: The starting color of the chip is not blue for W404 (shown before).
It looks something like:
Another set of images of both sides of a membrane, this time something weird is happening… It looks as though I’m missing some holes from the top side. They looked to be filled in but are not when seen from the back. Here is the backside of the wafer showing a bunch of holes. (the…
An initial experiment for membrane deflection characterization using an optical profiler (Veeco Wyco) has been performed. Below are some of the images taken with the tool: (a image was taken at each 0.5 psi interval): Once we get a pressure regulator we will be able to generate numerical data of membrane strength/deflection down to 5.0…
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Because of the failure of bonding the electrode to the top gasket in my last design, I have been trying to make improvements to my fabrication to make the electrode/gasket surface more planar. Things I have tried: 1. Pressure during curing. I placed a 500g weight on top of a microscope slide on top of…
I have been developing a microsystem for Paul Dunman’s group that will allow them to flow in bacteria, immobilize them on antibodies, and then subject them to varying concentrations of antibiotics. The full system will incorporate a fluidic mixer and a NPN membrane as a way to introduce the antibiotic I have been working with…
My goal and focus of the last post is to to use the existing SU-8 grid structure used on the ultrathin silicon oxide lift off membranes to create . To accomplish the goal the SU-8 surface needs to be modied to decrease cell adhesion so that the cells are trapped in the wells. Please see…