Monthly Archives: July 2014

Over the years, we have received a number of questions about the optical clarity of our polycarbonate (PCTE) membrane filters.  Optically clear membranes are of importance when viewing plankton from the Antarctic under a microscope, manufacturing porous PDMS chambers, epifluorescent microscopy, and numerous other applications studies or even unmanned biology missions into space!   All of our polycarbonate membrane filters are made by the same process, track-etching, but the clarity of our filters varies based on both the use of the base film (amorphous or crystalline– we use both) as well as the pore size and density.  To shed some light on (or through) the matter of our filters' optical clarity we put together a handy infographic that you can check out at the bottom of this page. 

Amorphous polycarbonate has no defined molecular arrangement within the film, and as such tends to show greater clarity (in an otherwise untreated

Sterlitech Corporation is now offering fully customizable membrane and process development systems which provide users with complete experimental control over the system’s flow parameters to simulate the dynamics of larger membrane systems.  Sterlitech first began building custom-made crossflow systems in 2011 and has since improved and expanded their capabilities to cover a wide range of applications in reverse osmosis, nanofiltration, ultrafiltration and microfiltration. These units can be individually tailored to meet the specific testing needs for off-the-shelf or custom membrane designs. Customizable factors include: membrane size, the number of cells in operation (up to 6), and whether the cells are run in sequence or in parallel.  Some of the new features built into the new testing units include a NEMA-standard waterproof touchscreen HMI panel and new back pressure regulators for better testing performance. This

As first time exhibitors, we had a great time meeting everyone who stopped by our booth at the 41st Annual NAOSMM Conference and Trade Show! Indianapolis is a great city and it was great having the chance to meet you there. Thanks to all of you who stopped by our booth during the show! Look for us again at next year's NAOSMM trade show, which will be hosted in Long Beach, CA.