For my work with Kyle and Vincent in Ottawa, I wanted to showcase more of the interesting configurations of DNA rather than simply passing the DNA through the nanomembrane. DNA Dual End Blockage and Clearage: DNA Flossing: DNA Stuck to nanofilter: These are all fine to show the pore being blocked at…
We manufactured a wafer specifically for SERS experiments in the hope of recapturing larger pore distributions/pore densities that we observed in some of the prototype runs of NPN. Natively, it’s a little thicker, and a little less porous than the 1085 material. By partially etching the membranes from the backside, we should be able to…
Kilean and I are working on submitting a paper to Membranes on some of our electron tomography work. Here’s some of the work that we’ve done so far: Tomography Paper V2_KL
We have a wafer that did not clear 500 nm pores (400 nm thick silicon nitride, #4682). There are about 230 chips that could be useful if they were etched a little. I used a SF6 based recipe (15 sccms O2, 30 sccms SF6, 10 sccms CHF3, 110/10 W FWD/REF power, 5e-5 torr base pressure,…
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…
Presentation: Madejski Proposal Presentation v3 Compressed Document: Madejski Silicon Nanomembrane Microsystem Proposal Final Passed in August 2015. Document was criticized heavily, oral presentation was thought to be good.
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…
We’d like to get verification of the absorption spectra of our npAu/npMgF2 SERS structure. The SERS effect should occur where the absorbance is maximized. Total Light = Absorbance + Reflection||Scattering + Transmittance Last Friday, I had the opportunity to work with Jennifer Kruschwitz who possesses a Konica-Minolta integrating sphere spectrophotometer from 380-740 nm (10 nm…
Some of the animation work that I have done (example as above) using Blender has been useful to communicate ideas and generate high quality images for papers. However, it is often time consuming to run them on our own personal laptops. The figures I generated for Kyle’s nanoporous tenting paper could take a day…
As the title states, these are images from the monolithically fabricated devices used by Kyle and Vincent in Ottawa. These devices were fractured with tweezers, then tilted and metallized with 5 nm of Pt, mounted on carbon tape.