Ferrocene solubilized with poly(vinylpyrrolidone) in aqueous KCl solution exhibited a well-defined voltammetric peak at 1.33 V vs. Ag|AgCl at a platinum electrode. The wave was attributed to the oxidation of chloride to chlorine, demonstrated by smell of chlorine, by a view of formation of gas bubbles, by coloration through the reaction with diethyl-p-phenylene diamine, and by the increase in t...

PURPOSE In this study, to optimize the polymeric drug delivery system for cancer chemotherapy, we developed a new pH-sensitive polymeric carrier, poly(vinylpyrrolidone-co-dimethylmaleic anhydride) [PVD], that could gradually release native form of drugs with full activity, from the conjugates in response to changes in pH. We examined the usefulness of PVD as a polymeric drug carrier. EXPERIME...

Self-assembled nanoparticles based on amphiphilic poly(N-vinylpyrrolidone) (Amph-PVP) were proposed earlier as a new drug delivery system. In the current work, we study antitumor activity of Amph-PVP-based self-assembled polymeric micelles covalently conjugated with receptor-specific TRAIL variant DR5-B (P-DR5-B). The Amph-PVP polymer was synthesized by developed one-step technique (Kulikov et ...

lactide)-b-poly (N-vinylpyrrolidone-co-N-acryloxysuccinimide) (PLA-b-P (NVP-co-NAS), 19000–22000 g.mol 1, PDI= 1.5) were prepared by nanoprecipitation and characterized in terms of size (DLS) and critical micellar concentration (cmc). Imiquimod was incubated with the aqueous micellar solution for 1 hour and imiquimod loading in the micelles was quantified by fluorimetry. The micelles were furth...

Quantum-confined Bi structures (quantum wells and quantum wires) are currently being studied for their varies novel properties. We now pursue the next level of quantum confinement in bismuth, quantum dots. In this work, we present a technique for the synthesis of bismuth nanoparticles using an inverse microemulsion method. To prevent air-oxidation in the characterization stage, poly(vinylpyrrol...

In this article, we describe a microfluidic approach to fabricate hollow and core/sheath nanofibers by electrospinning. Key benefits in using microfluidic devices for nanofiber synthesis include rapid prototyping, ease of fabrication, and the ability to spin multiple fibers in parallel through arrays of individual microchannels. Hollow poly (vinylpyrrolidone) (PVP) + titania (TiO2) composite an...