نتایج جستجو برای: polysulfone

تعداد نتایج: 896  

Journal: :Journal of Membrane Science 2021

Abstract Key issues for membrane technology in harvesting microalgae are to reach high fluxes and alleviate fouling by microalgal cells extracellular organic matter. To achieve this goal, negatively charged patterned membranes were prepared from polysulfone/sulfonated polysulfone (PSf/sPSf) blends using a spray-modified phase inversion method, the effect of sPSf on morphology filtration perform...

Journal: :Environmental Health Perspectives 2003
Kembra L Howdeshell Paul H Peterman Barbara M Judy Julia A Taylor Carl E Orazio Rachel L Ruhlen Frederick S Vom Saal Wade V Welshons

Bisphenol A (BPA) is a monomer with estrogenic activity that is used in the production of food packaging, dental sealants, polycarbonate plastic, and many other products. The monomer has previously been reported to hydrolyze and leach from these products under high heat and alkaline conditions, and the amount of leaching increases as a function of use. We examined whether new and used polycarbo...

تمدن, محمد رضا, طوسی, جعفر, قادری, مرضیه, ملک, فرهاد, ملک, مجتبی, موسوی, شاهرخ,

Introduction: One of the main complications of hemodialysis in patients with chronic renal failure is hypoxemia which is related to several factors including the type of filter. The aim of this study was to evaluate the hypoxemia levels in patients undergoing hemodialysis with focus on the type of filter. Methods: In a crossover clinical trial, 29 patients from emodialysis ward of Fatemieh hos...

Journal: :Blood purification 1990
C Tetta G Camussi E Turello M Salomone G Aimo G Priolo G Segoloni A Vercellone

Tumor necrosis factor (TNF-alpha) and interleukin-1 (IL-1 beta) are cytokines primarily produced by monocytes/macrophages when stimulated by endotoxin, complement-derived anaphylatoxins and the specific antigen. In the present study, the plasma levels of TNF-alpha and IL-1 beta were evaluated before and after hemodialysis with cuprophane membrane (in 9 patients) and hemodiafiltration (in 9 pati...

Journal: :The Canadian Journal of Chemical Engineering 1991

Journal: :Journal of Polymer Science: Polymer Letters Edition 1988

Journal: :Journal of Materials Chemistry C 2023

This research work presents a photochromic flexible film, for fast and real-time detection differentiation of UVA and/or UVB radiation. The host–guest system was produced by confining 7% (w/w) highly fluorinated ionic liquid in polysulfone.

Journal: :Journal of Polymer Science Part A-2: Polymer Physics 1967

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