Blend reverse osmosis membranes were fabricated using polyvinyl chloride (PVC) with cellulose acetate (CA) as polymer blends. Tetrahydrofuran (THF) and N-Methyl-2-pyrrolidone (NMP) were used as solvents. The membrane polymer solution was cast on a coated woven fabric support material. The prepared membranes have been characterized by SEM and mechanical properties. SEM r...

The present study was undertaken to develop a suitable transdermal matrix patch of ketorolac tromethamine with different proportions of polyvinyl pyrrolidone (PVP) and ethyl cellulose (EC) using a D-optimal mixture design. The prepared transdermal patches were subjected to different physicochemical evaluation. The surface topography of the patches was examined by scanning electron microscopy (S...

Multifunctional Fe3O4/Eu(DBM)3phen/PVP ((DBM: dibenzoylmethane, phen: 1,10-phenanthroline, PVP: polyvinyl pyrrolidone) microfibers were constructed by simple electrospinning process. The structure and morphology of the characterized X-ray diffraction (XRD), scanning electron microscopy (SEM) transmission (TEM) images. diameters pure PVP doped only with Fe3O4 nanoparticles (NPs) uniformly distri...

Bi-Pr-O composite nanoflakes were synthesized with the aid of polyvinyl pyrrolidone (PVP) as surfactant. The characterization was performed by X-ray diffraction and electron microscopy. prepared consisted tetragonal Bi2O3, hexagonal Pr2O3, Bi0.4Pr0.6O1.5 smooth surface. size whole is less than 1 μm thickness 100 nm. formation can be explained a PVP-assisted growth mechanism. A systematic study ...

Diastereomers of y-fluoroglutamate tentatively assigned the D configuration at the or-carbon are substrates for Dglutamate cyclase purified from mouse liver. In order to elucidate properties of these potentially useful analogues of glutamate as well as to gain some insight into the mechanism of the enzyme, the kinetics and thermodynamics of the reaction of these analogues have been compared to ...

A novel chlorinated polyvinyl chloride (CPVC) membrane with low area resistance and excellent cycling performance was prepared for vanadium flow batteries (VFBs). Poly(vinyl pyrrolidone) (PVP), in which amine groups could be protonated the acidic conditions, introduced into CPVC to conduct ions. The positively charged can not only form successive smooth pathways ion transport, but also prevent ...

(1) Background: Several properties of silver nanoparticles (AgNPs), such as cytotoxic, anticancer, and antimicrobial activities, have been subjects intense research; however, important aspects nanoparticle aggregation are generally neglected, although a decline in colloidal stability leads to loss the desired biological activities. Colloidal is affected by pH, ionic strength, or plethora biomol...