The International Conference for Porous Semiconductors Science and Technology, 2014, was last week in Benidorm, Spain. Jim was kind enough send me to represent NRG. Dave Fang gave a great talk at PSST based on pnc-Si data in 2010. Here…
Category: NRG
Electrostatic Effects on Convective Flux of Nanoparticles: A Mathematica/Matlab Implementation of W.M. Deen’s Model
UPDATE: I have since ported the program into Matlab. If you open the following zip document(Archive) you can run Find_Sieving_Coefficient. You can select a results file and after ~5 minutes the expected sieving coefficient for the pore distribution is spat…
Posted in NRG
Surface modification of PDMS for enhanced cell adhesion and proliferation
PLEASE read this journal article for NRG on Tuesday March 18th @ RIT (PDF links are at the bottom) Surface Chemical Modification of Poly(dimethylsiloxane) for the Enhanced Adhesion and Proliferation of Mesenchymal Stem Cells Shreyas Kuddannaya,†,§ Yon Jin Chuah,‡,§ Min Hui…
Posted in NRG
Cytotoxicity of silver chloride and platinum electrodes
I am working with different electrode materials as a substitute for ITO for my TEER measurement device. I used silver-silver chloride electrode and platinum-iridium ribbon (90:10) for that purpose. I made AgCl electrode by dipping about an inch of silver…
Posted in NRG
Nanofiber Mesh Filters Blood of Toxins, May Allow for Tiny Hemodialysis Machines
The basics of this device are… Blood flows through a filter made of zeolite containing nanofibers. While the blood flows transversely through the mesh, creatinine can diffuse through the mesh where zeolites stand by to grab them via size selecting…
Posted in NRG
ADSC Endothelial Differentiation Manuscript
Membranes Promote Endothelial Differentiation of Adipose-Derived Stem Cells and Perivascular Interactions Submitted to Journal of Cellular and Molecular Bioengineering (a BMES journal) ADSC-All-Figures FIGURE 1. Ultrathin microporous silicon dioxide (SiO2) membranes. (A) 300 nm thick SiO2 membranes were fabricated…
Posted in NRG
Stable, Reasonable, and Reproducible Zetapotential Readings for pnc-Si Remain Just Out of Reach
I’ve spent a long time in lab trying to optimize the protocol for streaming potential measurements. The slope of an applied pressure vs. streaming potential graph can give us the apparent zetapotential through the helmholtz-smolachowski equation. The apparent zetapotential is…
Posted in NRG
Dialysis Chip Recovery After Membrane Damage
Josh Miller came up with the idea of filling individual damaged membrane channels with PDMS so the rest of the chip could be salvaged. We worked on it this week, mostly Josh, and we developed a process using strips of…
Posted in NRG
NSF proposal on Catalytic Membrane Reactors
I submitted a proposal last week with Tom & I as co-PI’s to NSF’s Process Reaction Engineering division in CBET. Novel Catalytic Membrane Reactor Based on Ultra-thin Palladium Film Supported on Nano-structured Inorganic Membrane I’m attaching the intro. paragraph and…
SU-8 microgrid strain measurement
Kelly & I finally succeeded in getting a measurement of the SU-8 scaffold change in size upon liftoff. Kelly, lifted off a sample (~0.5 x 2 cm) using the XeF2 dry etch and transferred the sample to a glass slide…
Posted in NRG
