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Surface Chemistry Modification for PEG
The goal of this project is to determine the viability of PEG as a structural support for large area nano porous membranes. This would enable lift-off vs. the current method of etching through the wafer. The ideal properties are that the structure can withstand an aqueous solution for many days without peeling off or dissolving,…
Desalting with Intact Membranes: Continued
As mentioned previously intact membranes show a flux comparable to membranes with pinholes during desalting experiments. To confirm this a third intact membrane test and two pinholed tests were run under the exact same conditions. Previous pinholed samples had different NaCl solution volume in the SepCon, I wanted to remove any variability caused by this….
More excitement on o-ring position and transport
In my last post, I concluded that switching the o-ring position from below the membrane to the top in the sepcon produced no leaks. The reason for this switch was to reduce the 1mm “dead-space” (created by the o-ring) that adds to the unstirred water layer (UWL). The next thing that Barrett and I looked…
Blanca giving UR BME seminar tomorrow
ByJim“Dynamic Particle Manipulation in Microfluidic Devices Employing Dielectrophoresis” Dr. Blanca H. Lapizco-Encinas Associate Professor Microscale Bioseparations Laboratory Chemical and Biomedical Engineering Department Rochester Institute of Technology Tuesday, February 26, 2013 8:30 am River Campus Robert B. Goergen Hall Sloan Auditorium, Room 101
Fun Posters for the Lab
Over winter break I put together some posters to hang up in the lab. I tried to represent in an clever way a few key areas of research that NRG is interested in: If anyone has any ideas for more, or any suggestions for captions or improvements (I’m really not a fan of “At…
Magnesium Fluoride Nanoporous Membranes
Wet Etching of Optical Thin Films As a result of Christian’s trip and Kevin’s discussions with me, I have been wondering if we could make nanoporous MgF2 membranes for Raman spectroscopy. Part of the appeal in using our Si-based nanomembranes is that the volume they occupy in the observation space is extremely minimal. Even…


