We have ever developed micro dialysis system that consists of micro channels and polyethersulfone (PES) membranes. However, when blood was used in dialysis experiments, platelets adhered to the surface of membrane and performance of the membrane degraded. Therefore, we modify the surface of PES membranes by coating fluorinated diamond-like carbon (F-DLC). We examined antithrombogencity of the F...

Supported ionic liquid membranes (SILMs) have a promising prospect of application in flue gas separation, owing to its high permeability and selectivity of CO₂. However, existing SILMs have the disadvantage of poor stability due to the loss of ionic liquid from the large pores of the macroporous support. In this study, a novel SILM with high stability was developed by confining ionic liquid in ...

Characterization of Polyethersulfone (PES) and Polyvinylidene Difluoride (PVDF) Resistive Membranes under In Vitro Staphylococcus aureus Challenge by Sandra Nakasone Department of Biomedical Engineering Duke University Date:_______________________ Approved: ___________________________ Bruce Klitzman, Supervisor ___________________________ William (Monty) Reichert ___________________________ Fan...

Surface charge characterization is important in the design and testing of coatings and membranes for biological and industrial applications, but commercial zeta potential meters are expensive and difficult to adapt to a variety of membrane designs. We combined inexpensive off-the-shelf components, a test mount fabricated with a conventional rapid prototyping system, and software written using a...

Abstract In this study, the polyether sulfone (PES) based membranes containing various concentrations of graphene oxide (GO), polyvinylpyrrolidone (PVP), and polyethylene glycol (PEG) were synthesized via phase immersion method. This study aims to evaluate effect GO addition on structural properties performance membranes. The analyzed by x-ray diffraction (XRD), scanning electron microscopy (SE...

-In this work, a vibrating search algorithm is applied to design a normal-incidence broadband visible antireflection (AR) coating on the flexible Polyethersulfone (PES) substrate, and then AR coats PES using ion-assisted deposition (IAD). The average visible spectral reflectivities of calculated and experimental AR performances are reduced to below 0.321 and 0.327%, respectively, revealing very...

Separation performances of micellar enhanced ultrafiltration process in Cr(III) and Cr(VI) removal has been evaluated. The neat as well as sulfonated and aminated derivatives of polyethersulfone were tested as the material for membrane preparation while hexadecylpyridine chloride and sodium dodecyl sulfate served as surfactant. It was shown that modified membranes can better reject both forms o...

Aromatic nitration has been used to modify the polymer mam chain of polysulfone and polyethersulfone Alteration m the gas separation charactenstlcs of homogeneous membranes made out of these polymers could be observed upon nitration Generally, separation factors for gas mixtures of CO&H, increased while the permeability decreased Remarkably, a decreasing dlffuslvlty for both gases upon nitratio...

The present study investigated the performance of a self-made nanofiltration (NF) membrane for the removal of antibiotics from wastewater under changing operating conditions such as pH, initial feed concentration, operating pressure, and temperature. Amoxicillin (AMX) was used as one of the commonly prescribed antibiotics. A self-made NF membrane containing Polyethersulfone (PES), and Polyvinyl...