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:
Purpose: We want to know the effects of the RTP process on pore size, pore density for the biased films coming out of the AJA. I believe that the RTP ramp rate is important for forming bigger pores. Some work (Joe Qi Thesis) has indicated that the pores come out more circular as the wafer is…
From my last two posts (Anodic Bonding, Ozone Bonding), it is clear that we have some sort of bonding going on between the freestanding membrane and the posts intended to support the membrane. However, we do not understand the nature of the transfer. To gain more insight into this process, I took more SEMs of…
A group published a paper in Lab on a Chip (2012) using track-etched membranes for electro-osmosis. There are a lot of eerily familiar terms and concepts in the paper. The title even sounds familiar: Low-voltage electroosmotic pumps fabricated from track-etched polymer membranes They created a device with metal mesh electrodes on the opposite sides of…
The following images are from ARPE-19 Cells cultured for 3 Weeks over here in Nottingham (thanks for help from Emilia Moradi, Victoria Ciampani, and Kevin Webb). MgF2 nanomembrane chips were positioned into a transwell insert and sealed using PDMS, a biocompatible polymer, creating a two-compartment transwell. After an ethanol sterilization, ARPE-19 cells were seeded in a 12 well…
W407 (non treated) in different NaCl salt concentrations (benchtop) : At t=0 In order (from l-r)1. 0.5 M NaCl2. 1.0 M NaCl3. 2.0 M NaCl At t=24 hrs. At t=53 hrs. At t=6 hrs and t=12 hrs the chips were not found to be discolored.This was carried out to test the stability of the membranes…
Wafer 1148 was produced roughly around the same time that the wafer I used to make my oldest MgF2 material (wafer 1085) was produced. We know that some of the NPN material from that time was not etched all the way through, creating pores that look like a ‘bowl-with-hole’. I believe the shape of the…