Found a Master’s thesis from RIT that details etch rates for ITO films in Hydrochloric Acid. I originally attempted to do an etch using 1M HCl, but as the graph shows, this is not enough to produce an etch…
Category: NRG
Furnace annealing of free-standing NSN and OSO stacks (2)
In this post, I’ll mainly focus on the furnace annealing results of OSO stacks. The structure of the OSO stack is also 30-25-30, which corresponding to 25nm thick silicon layer and 30nm thick oxide layers. The annealing temperature ranges from…
Posted in NRG
ITO Embedding
I recently bought some slides of ITO from Sigma-Aldrich, and have been working to integrate them into PDMS by using the same process as I did for the glass coverslips (seen here) The main differences between the glass coverslips and…
Posted in NRG
BBB Device V2 Design
The goal of the design is to design a system that can co-culture cells under varying flow conditions, measure TEER, and perform dynamic microscopy. Specifically, the endothelial tight junctions are the primary mechanism by which the BBB is regulated. It…
Posted in NRG
Hemocompatibility studies: Summary
Hemocompatiblity of pncSi membranes was tested by checking for three main parameters: 1) Platelet adhesion, aggregation and activation studies 2) Complement protein activation studies 3) Assaying levels of thrombin generation All the studies and their assays were based on the…
Posted in NRG
Neither Centrifugation, Sonication, nor Filtration Fix the Aggregation in the Barcikowski Lab Samples
In early May, the Barcikowski lab shipped us four samples of gold nanoparticles for us to run separations on. They took forever to get here, and had aggregated and precipitated by the time they arrived. About a week ago, the…
Furnace annealing of free-standing NSN and OSO stacks (1)
I have done some furnace annealing (FA) on free-standing NSN and OSO stacks in last two weeks after the RTP was down. I’ll show the results in the following two posts. In order to compare the annealing result, I chose…
Posted in NRG
High salt concentrations (~50mM) shouldn't be used to tune effective pore sizes for gold colloid separations
What we’d like to have accompany the Sepcon filters is a general way to tune the pore sizes for any given separation. If, for instance, someone wanted to have a filter cutoff of 12nm, we could create a custom wafer…
peg X-linking
Purpose: The purpose of this investigation was to study the diffusion of Rhodamine, a florescent dye, in crosslinked Poly ethylene glycol (peg) using a Leica DMI 6000. Knowing the permeability of crosslinked peg is valuable as peg is a potential…
Posted in NRG
Long Term Urea Clearance (8 hours)
SET-UP Syringe pump: 5 mL of 7.6-nmol/100µL, 5.6 µL/min pump rate. Single Channel dialyser, 10 mm long, 0.5 mm wide, 0.3 mm high in stirred beaker of DI water Fraction Collector programed to rotate every 30 min. Set up in…
