Hydrophilic PES Membranes: Boosting Filtration Performance Polymeric such Polyethersulfone (PES) present a robust base of sheet fabrication, but its inherently non-polar nature might limit use in some liquid filtration https://tailinscitech.wixsite.com/tailinscitech/post/tailin-sterility-test-canisters-closed-systems-for-accurate-results