Category: NRG

Nanomembrane transfer onto glass and SiN using vapor from tap and deionized water

Introduction: After meeting with Tucker, he showed me the experiment he conducted to induce membrane transfer to, supposedly, any kind of surface. The method he used was initially with breath, and then he passed on to deionized water vapor. The…

Posted in NRG

Game plan for NPN-Nanopore integration

The new oxide chips arrived this week, so I have materials for lots of experiments going forward. The current inventory stands as follows: ~100x NPN chips (mostly still in wafer form) 81x 20nm SiN + 200nm  + 10nm SiN cap…

Posted in NRG

Gap Junction Formation

Background:  The purpose of these experiments was to investigate the formation of gap junctions between co-cultured HUVEC and ADSC across 0.5µm HP SiO2 and 0.4 µm HP Track-Etched membranes. Gap junctions are channels that allow small molecules to pass directly…

Posted in NRG

Flow Sensing and Energy Harvesting Capabilities of NPN Membrane

Principle of Operation The electrokinetic properties of charged membrane make it possible for conversion between the electrical and mechanical regimes. The electroosmosis is an example of converting from the electrical to mechanical powers. In reverse, exchanging the mechanical energy for…

Posted in NRG

Distributions of in-Situ formed Au Nanoparticles

Jirachai’s recent post on the formation of Au nanoparticles on the surface of the NPN is very exciting. For one, it is a very dense monolayer of particles. This self assembly mechanism is magnificent whereas if we tried to dry…

Posted in NRG

Nanoporous SiN Membrane Coated with Gold Nanoparticles

It was expected that heating up the substrate during Au sputtering would help increase mobility of Au into nanopores so that the uniform coating on pore wall could be achieved.  The result was quite unexpected; Au did not coat uniformly on…

Posted in NRG

Model curves for TE, graphene, and SiN membranes at various pressures

After correcting a minor error in my code that was giving me some weird limiting behavior, and optimizing the code to give me faster results, I generated the following curves: Note that, as experiment predicts, the ‘sharpness’ of the graph…

Posted in NRG

Cell Suspension, Discoloration and Immunofluorescent assays – Marian

Discoloration Assays Introduction: pnc-Si chips were monitored for discoloration to find chips that had not been previously RTP’d. These assays were necessary in order to find chips that could potentially be used for cell proliferation assays later. Setup: pnc-Si chips…

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Journal Club: exosome isolation and detection in micro- and nano- devices

Hi All, Presented in this post is the following paper, titled: “Detection and isolation of circulating exosomes and microvesicles for cancer monitoring and diagnostics using micro-/nano-based devices” [REVIEW] exosome handling in micro and nano devices Keynote presentation: [PRSENTATION] NRG (2015-11-16) exosomes

Posted in NRG

Burst Pressure Test

Introduction After completing my experiments on burst pressure of HD membranes, I started the experiments on finding the burst pressure of 3-channel nitrite chips by using the airgas cylinder. This experiment is to investigate if soaking in viscous fluid will…

Posted in NRG
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