Gene vs Protein nomenclature

Today I etched wafer 621, which is the pair to 620.  While w620 has a relatively low pinhole density, w621 shows a much higher occurence of defects. Since the front-end processing and thermal treatment was identical for these wafers, I believe that the variability lies in the etch process.  Looking at the two wafers side-by-side,…

Introduction: Over the past few weeks I’ve begun working on a project that deals specifically with characterizing tangential flow filtration with our labs ultra-thin membranes. Essentially, I’m working on understanding the advantages our membranes have over conventional/thicker ones by looking at characteristics such as transmembrane pressure, fouling, and flux. Our working hypothesis is that our…

Maryna’s presentation

Josh Miller and Elizabeth Hirschman (RIT co-op student working on STTR lift-off project) obtained preliminary successful results lifting off ~1 in2 sections of NPN membrane where the nanopores were only transferred into the nitride layer in a microporous pattern (ø3 µm pores, hex-close-packed on 6 µm pitch).  Details of process are given below.   Bruce…

Ultimately we want to use SiN-NP filters to separate viruses or some other biological species, but repeated attempts to pass 20 nm fluorospheres in water or PBS have failed.  Au particles, however, have passed through the filters.  This post reports the results of Sarah and I attempting to pass Au particles from 20 to 100…