Cross-flow ultrafiltration of protein solutions through unmodified and surface functionalized polyethersulfone membranes – Effect of process conditions on separation performance

Novel ultrafiltration membranes with adjustable charge density based on sulfonated poly(arylene ether sulfone) block copolymers and their tunable protein separation performance

“…A C C E P T E D ACCEPTED MANUSCRIPT 3 adsorption of protein molecules on the surface or entrapment of protein molecules in the pores [5,9]. The fabrication of low fouling UF membranes with good mechanical and chemical stability is hence important for practical applications.…”

“…Contact angle was measured using optical angle measurement system (OCA 15 Plus, Dataphysics GmbH, Germany) equipped with a video capture. The static captive bubble method was chosen in this study to measure contact angle of the membranes which had been equilibrated in water [5,7]. Five measurements were conducted at M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 9 different locations of the samples and the average values were reported.…”

“…The hydrophilicity of the membranes was evaluated by measuring their water contact angles using the captive bubble method, which is preferred for porous membranes because they can be analyzed in the fully hydrated condition [5,7,43]. The observed values are presented in Table 2).…”

Tuning the nanofiltration performance of thin film strong polyelectrolyte hydrogel composite membranes by photo-grafting conditions

“…It is noted that in a previous report the MWCO of these membranes measured using dextrans as probes was found higher for all membranes [36]. Prior to the modification the membranes were cut with a 56 mm diameter punch hole and washed in methanol for 1 h, then thoroughly washed with Milli-Q water and left in Milli-Q water until used.…”

Integrated membrane process for wastewater treatment from production of instant tea powders

“…The internal pore blocking by the retained molecules may lead to a sharp and rapid flux decline. The further flux decline may be attributed to the formation and subsequent growth of the gel and cake layer, which come from the deposition and accumulation of rejected particles [19]. The common main foulants include dissolved organic or inorganic components, colloidal matter, soluble microbial products, bacteria and suspended solids [20].…”