A change in open-circuit potential, measured across a pnc-Si membrane, in response to a fluctuation in flow rate of electrolyte solution exhibits a promising flow-sensing capability of the membrane.  To demonstrate this correlation, the open-circuit potentials were measured under a…

I am trying to grow endothelial cells under flow and measure electrical resistance of the culture during the flow-based growth. I am using a peristaltic pump to generate the flow. I am using microporous membrane with 3 micron pores with…

My last experiment did not go as planned, but the results are very interesting nevertheless, and might provide another interesting application for these tw0-membrane systems that we had not yet considered. The start of the experiment went as planned: painted…

I made a size ladder of ALD-ed chips. The chips I began with were ~35 nm average pore size, and I applied 2, 5, 7, 10, and 12 nm of alumina using the ALD in UR nano. This does represent…

Program C. Gu – Harvard Seminal Experiments Reese and Karnolvsky 1967 Brightman and Reese (1969) Two unique features of CNS endothelium: Specialized tight junctions – Very low rate transcytosis. Tight Junction by EM Ben-Zvi et al 2014 Nature. Transcytosis becomes…

Josh Miller and Elizabeth Hirschman (RIT co-op student working on STTR lift-off project) obtained preliminary successful results lifting off ~1 in2 sections of NPN membrane where the nanopores were only transferred into the nitride layer in a microporous pattern (ø3…

Xingyu et al; Supplement The authors of this submission to ACS Nano apply techniques for the creation of mesoporous silica thin films with vertically aligned nanochannels to create ultrathin (< 100 nm) silica membranes with ~ 2 nm nanochannels. The…

Based on the talk I gave at the ICNMM (International Conference on Nano, Micro and Minichannels) this past summer, I’ve been asked if I would organize and chair a session titled: Transport in Membranes and Nanofluids. I’d like to include people…

Notes from the ECM4 conference Met with Mathew Halls from Schrodinger. He was curious about what I did, came up, gave me his card. Apparently he knows Chin Tang. He’s giving a talk on the last day. Opening Remarks –…

I decided that instead of trying to figure out why it was delaminating, I would simply remove the option altogether.To that end, I painted PDMS on two NPN chips up to the oxide spacer.   Attempt 1: This chip was…