Crystal Growth inside Nanopores
Please see the attachment:
Please see the attachment:
Objective: Determine the minimum required area and number of exploratory cytoplasmic protrusions for sensing ECM alignment and causing cell polarization. Hypothesis: Cells only need to sense collagen alignment through exploratory protrusions extended during initial phases of cell seeding and not throughout the entirety of the cell, and a minimum number or size of protrusions is…
We have a wafer that did not clear 500 nm pores (400 nm thick silicon nitride, #4682). There are about 230 chips that could be useful if they were etched a little. I used a SF6 based recipe (15 sccms O2, 30 sccms SF6, 10 sccms CHF3, 110/10 W FWD/REF power, 5e-5 torr base pressure,…
Prior to my qualifying exam about a month ago, I put together a simple model of transport (detailed in this previous post) across a nanomembrane that incorporated electrostatics as well as terms describing both convective and diffusive transport across the membrane. It was a useful model, but ultimately limited, as shown by the following image:…
In a previous post, we showed that both Cytochrome C and BSA at concentrations of ~1mg/mL through 20nm cutoff Sepcons with about the same filtrate concentration (~60% of the feed concentration). Yesterday (1/14/13) we repeated these experiments with 10 and 15nm cutoff Sepcons and demonstrated pretty clearly that either 10 or 15nm Sepcons can be used…
Having finished the hydraulic permeability testing with DI water I wanted to see what the effect of an introduction of protein would have on the permeability values. To do this I simply reran a set of fresh membranes at 21.63psi using a 1mg/mL solution of bovine albumin in PBS instead of water.The group on the…
This summer I’ll be working on preliminary development of technology that might lead to SiMPore drug discovery assays. The goal is to use SiMPore membranes to create much more efficient and generalized assays, which represents a big opportunity for the company. However, several challenges need to be addressed in order to make such a device…