Understanding nanoparticle diffusion within non-Newtonian biological and synthetic fluids is essential in designing novel formulations (e.g., nanomedicines for drug delivery, shampoos, lotions, coatings, paints, etc.), but is presently poorly defined. This study reports the diffusion of thiolated and PEGylated silica nanoparticles, characterized by small-angle neutron scattering, in solutions o...

Dewatering or drying of diluted cellulose nanofibril suspensions is an effective way for reducing the costs transportation and storage. In this study, poly(vinylpyrrolidone) (PVP) was introduced into a redispersing system concentrated CNFs, obtained redispersed CNFs were used fabricating CNF/PANI (polyaniline) nanomaterials by in situ polymerization method. The results showed that mechanical gr...

Poly(vinyl pyrrolidone) (PVP) electrospun fibers loaded with ketoprofen were fabricated in this work as potential fast dissolving drug delivery systems (DDSs) for oral delivery. By changing the processing parameters and collector geometry it was possible to increase throughput rate from 1 20 mL/h. The all took shape of cylinders had smooth surfaces. They comprise amorphous solid dispersions dru...

Intelligent, stimuli-responsive hydrogels have great utility in various fields spanning biomedical technology, separations, and catalysis. Their overall response to surrounding fluids may be further tailored to a specific application by incorporation of one or more intelligent responses within one material, known as multiresponsive hydrogels. This is a report on the facile synthesis and charact...

nicr2o4 normal spinel nanostructures were prepared via hydrothermal treatment at 180 °c for 12 h in the presence of cetyltrimethylammonium bromide (ctab), sodium dodecyl sulphate (sds) and poly vinylpyrrolidone-25000 (pvp-25000) as capping agents and subsequent calcination process at 500 °c for 3 h . in this method, [ni(en)2(h2o)2](no3)2 and [cr(en)3]cl3.3h2o used as precursors and not utilized...

Background. Various cationic polymers have been proposed for use as carriers of genetic materials in biotechnology and biomedicine. The poly(2-dimethylamino)ethyl-methacrylate (poly(DMAEMA)) demonstrated high transfection efficiency low cytotoxicity when used a gene delivery system. aim the present study was to evaluate ability poly(DMAEMA)-block-poly(N-vinylpyrrolidone)-co-(butyl-acrylate)-co-...

This paper reports a high-yield synthesis of Ag nanospheres made up of primary nanoparticles. The size of the silver nanospheres can be controlled by changing the concentration of poly(vinylpyrrolidone) (PVP) which acts as a stabilizer. In addition, the surface morphology of the nanospheres can be well controlled through controlling the shape of primary Ag nanoparticles by introducing a small q...