Finally on Friday all the pieces came in that we ordered to connect the peristaltic pump tubing to the 238umOD capillary tubing. This is our first order, after last weeks meeting we ordered a smaller OD capillary tubing (164um) with…
Category: NRG
Adsorption Quantification III
UPDATE: Teflon data now include Original Post: Refer back to Part I, and Part II This weekend I ran a bunch of gels to flesh out the adsorption data a bit more. I tested MicroCons, NanoSeps, and teflon and reran…
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pinhole-less membranes
Inspired by JP, we decided to try to etch amorphous (unannealed) wafers this week to see if pinhole density changed. To my surprise, the amorphous membranes had no pinholes! Furthermore, I tried to anneal the membranes after the etch and…
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COMSOL modeling progress…
Over the last few days I have spent some time learning the basics of the COMSOL modeling software. I have just started to understand the basics and I just wanted to show an example of what this program is capable…
Fibroblast adhesion study using controls
Fibroblast adhesion experiment was done using poly-lysine coated plastic and teflon coverslips as positive and negative controls repectively. Poly-lysine is a polypeptide that gives the cells a sticky surface to adhere to. Teflon coverslips are used as negative control because…
Polycarbonate Sheet — substrate material
I worked with Paul this afternoon and finally we highly suspect the raw material used for the prototype diffusion chamber could be Polycarbonate. Paul could not provide direct evidence for the material source since he did not keep any purchase…
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Question about observation through the plastic substrate of the new diffusion chamber
Attached are the photos taken under DIC and Rhodamine channels, using the new diffusion chamber. I can clearly observe Rhodamine pass to the lower hole of the chamber, under the Rhodamine channel by eye ball. But from what I got…
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Silica NP sizes
Hybrid silica studies the size of their particles by fluorescence correlation spectroscopy. I used our dynamic light scattering instrument to see what sizes it would get from these particles. Their 45nm particles: Avg center of peak = 46.2 nm Avg…
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Silica NP Separation
Here’s my ‘blog’ post using Google’s Picasa photo album: A few weeks back I received nanoparticles from Ithaca startup company called Hybrid Silica Technologies (HST). They are silica particles that are infused with fluorescent dyes that are generally similar in…
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