Fabrication of silicon membrane using polymer self-assembly template

Above video shows the disruption of the membrane from W404 after around 12 hours in the DMEM media (benchtop). The membrane was not treated with UV-Ozone and degraded pretty early as compared to that from W336 which broke at ~28 hrs. The membranes were loaded with 15um beads to check if they were intact and…

Last week, we ran several wafers with a silicon target from Refining Systems (Las Vegas).  In addition to the source material being different, the target bond was a silver elastomer vs. the typical indium bond that AJA uses.  Below is a TEM micrograph of a comparison between the RS silicon and AJA silicon.  Both these…

Small DNA oligomers behave like stiff cylindrical rods.  They have both rotational and translational diffusion, and this is of interest when considering how such a rod will diffuse through a nanopore.  In this post I briefly consider the effects of rotational and translational diffusion of cylinders of different lengths. The rotational diffusion coefficient can be…

This is the method Brian McIntyre developed for the recent URNano Microfluidics Workshop. Based on a polyaddition-based mechanism based on introducing amine groups onto the surface of one material and epoxy groups on another material and enabling the amine–epoxide polyaddition reaction at their closely contacted solid-to-solid interface to establish a covalent and permanent bonding presented in…

Submitted on March 14, 2014 Submitted Manuscript (PDF) Check Status

Since Paul sent an email saying he will be on leave from this week, I spent some time in the hopeman metal workshop with Paul working on our second diffusion chamber before he leaves. We actually failed four substrates before we made it. Here is the enhanced version. First, we made the hole through the…