Jim’s Talk at Spring Brain Conference in Sedona, AZ

In this post I will show that the analytical 1D model of diffusion is similar to our 3D COMSOL model, with the exception that the times do not seem to line up.  This is reasonable though since the 1D model does not take into account the non-membrane silicon pieces and enlarged volumes that occur in…

I derived the governing equation for the volume transfer from SepCon devices in the wet/wet (EQ) format. It is … where the equilibrium volume for the cup can be calculated apriori using the cross sectional areas of the cup and the surrounding annulus … with the total volume of interest given by and the time…

The retrial on cellulose (100kD) gold separations gave similar results to the first study (results from Tecan scans): particle salt results 5 0mM no au in filtrate, retentate concentration 15 0mM no au in filtrate 5 10mM no au in filtrate, retentate concentration 15 10mM no au in filtrate I took the membranes and rinsed…

Purpose: Study the hemocompatibility of different substrates using platelet activation as the indicator.   Extraction of platelet rich plasma (PRP): PRP were prepared from whole blood following the standard protocol outlined by Abcam (http://www.abcam.com/protocols/isolation-of-human-platelets-from-whole-blood). To describe briefly, 9 mL whole blood was centrifuged at 200g for 20 minutes in a 15 mL Falcon tube to obtain…

http://www.genengnews.com/insight-and-intelligence/silicon-ideal-to-culture-patient-on-a-chip/77900627/ Organs-on-Chips Remotely Monitored, Controlled via Google Glass

Xunzhi from the Shestopalov lab gave us a brief presentation on how XPS is used to assess surface modification of the nanoporous nitiride silicon (NPN) membrane chip.   Power Point Presentation: surface assessment via XPS