Process Flow Update

The following data is from analysis of Wafer #1059, consisting of 30nm pnc-Si with 7% porosity and an average pore diameter of 28nm. Square window sizes with sides lengths of 0.1mm, 0.3mm, 0.5mm, 0.7mm, and 0.9mm were tested. For 1.1mm x 1.1mm windows, burst pressures could not be determined, as these windows did not etch…

Overview: The study of ADSC spreading on various surfaces was conducted to determine if porous surfaces and the porosity of the surfaces had any effect on cell spreading. Eight different surfaces were studied and each of the membranes were SiO2, these included: 0.5um low porosity (LP), 0.5um high porosity (HP), 3um LP, 3um HP, 5um…

Since HUVEC morphology hasn’t looked good in short-term adhesion assays recently, I analyzed HUVEC on the 2nd day after cell seeding. Normally, CMFDA staining is done for 30-45 minutes in serum-free media.  I wondered if the serum-free environment during staining was affecting the HUVEC.  So, I stained one sample with 5uM CMFDA in serum free…

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 from cell to cell. Electron micrographs show that the membranes of two adjacent cells are…

Ring Resonators are photonic structures that have a very repeatable behavior. As light is guided along a path, it can evanescently couple into a very closely positioned wire (submicron gap). If the wavelength of light is just right, constructive interference can occur, causing the rings to resonate (lost through scattering). Necessarily, this causes a drop…