First results on polyimide deposition

This is my attempt to summarize where we are with our investigation into the use of membrane arrays in high throughput screening. The effort is known colloquially as the ‘Harold Smith Project’ because the model protein system comes from Harold and is inspired by work in his laboratory on HIV. The principle being tested is…

We are working on finishing up a manuscript on our nanosphere lithography work. this post shows some of the figures for said publication. This paper includes work done with 300 and 200 nm NS as preliminary work, and then focuses on 200 nm NS only to evaluate the porous pattern obtained. From the data presented,…

From the last post, I had successfully manufactured waveguide on top of our porous silicon nanomembrane chip. However, the proof that light can transmit through the waveguide was not accomplished until last week. The problems I was experiencing included insufficient thickness and wrong cladding layer refractive index. Thus, in order to prove that my waveguide…

With my TEM tilt stack work, we can see a marked difference in the roughness of npMg2 and NPN. Quantifying the bulk roughness properties of the npMgF2 using AFM gives us a way to check that property. Surface roughness has been known to effect SERS activity in other substrates, and our current hypothesis is that…

As part of my thesis, I am trying to get a non-fouling pattern on a substrate which resembles our porous membranes to investigate cell behavior including cell adhesion and migration and to compare with our previous results which was obtained on porous membranes. This study can separate the role of pore edges and disrupted surface…