Rhodamine 6G diffusion through RTP treated and non-treated pncSi (w/o pinholes)

Although the connection of those electrical circuits was always unstable, Greg and I did get some TEER measurement with this set up:   Device A Day 1 Day 2 Day 3 Day 4 Day 5 EVOM 1 -3450Ω* -1000Ω -1200 Ω -1000 Ω / EVOM2 100 Ω -9600 Ω 450 Ω -3 Ω 827Ω Device…

I’ve been trying to make the following device work for the past few years: The people who have been studying this have been trying to use the phenomena to mix solutions, or using arrays of mismatched electrodes to generate a sort of conveyor belt pumping mechanism: My idea is to use the electrokinetic phenomena of AC…

Last week Jess helped me set up the diffusion cell with human albumin and cytochrome c. We ran 3 cells and used membranes from wafer 565. The membranes used were -1,4 (retentate 1), 3,3 (retentate 2), and 4,2 (retentate 3). The gel is posted below: The columns are (from left): Protein, control, retentate 1, filtrate…

I was concerned that even though my calculations for etching the microporous MgF2 material show that the silicon nitride was being removed completely, not all of the silicon nitride was indeed being removed. Hypothetically, the presence of additional remnants of silicon nitride could be causing additional film stress and cause membranes to break more frequently. I…

Since I discovered a dilution of polyurethane acrylate (PUA) which coats well (described here), I have restarted my efforts towards etching the PUA. Described below are my most recent attempts towards creating a PUA coating with a smooth surface with a 1 um in thickness. Unfortunately, it has proven harder to maintain a smooth surface…

This post serves as an introduction to the uni-axial motion envisioned to be integrated into the tendon-on-chip platform. As discussed previously we are working in junction with Dr. Awad from the Center for Musculoskeletal Research (CMSR) center at UR to develop an in vitro platform to study fibrosis and inflammation in tendon tissue. One important…