Slides for Jan 12th STTR Update

Paper: Oo2016 Supplementary Info:Oo2016SI Abstract:  Design and fabrication of three-dimensionally structured, gold membranes containing hexagonally close-packed microcavities with nanopores in the base, are described. Our aim is to create a nanoporous structure with localized enhancement of the fluorescence or Raman scattering at, and in the nanopore when excited with light of approximately 600 nm, with a view…

My previous post on Electroomosis theory describes the deviation between expected and calculated zeta potential using the Smoluchowski equation. In this post I will explain another method of solving for the zeta potential and I will consider the mistakes made in the previous calculations. In a paper by Kim(Mukhtar) in J. Membrane Sci. (1996), the…

In order to resolve the silicon nitride- silicone gasket bonding issue, I, Josh, Tucker and Greg used different approaches to functionalize the nanoporous nitride (NPN) surface. Both surfaces of NPN, although have same material (silicon nitride), behave differently. The flat side is etched using xenon fluoride to remove pncSi layer on top. Different tools at…

I reran the 100K Microcon membranes using bovine albumin. This time I ran a set of four fresh membranes with DI water for a preliminary trial. Once complete I used two of the same four membranes with a 1mg/mL solution of bovine albumin in PBS to test the effects of protein; the other two membranes…

A couple weeks ago, I presented a potential figure for my paper that didn’t make sense.  So, I did a couple more controls and put together this new figure.  This is the “diffusion through ‘non-porous’ SC348/cut-off of nonporous membranes” figure.  I redid it to include SC348 (the nonporous sample) and ‘typical’ pnc-Si as % of…

Introduction/Motivation A problem many of us face in day to day research is the ability to change membrane format in a days to weeks notice. The cost of developing an entire new wafer of membranes for preliminary experiments is costly and time consuming. This cost and time increases when complex formatting is desired. All of…