objective (s): mucoadhesive disc is one of the various routes of drug delivery for curing buccal disease.materials and methods:everydiscs containing 70 mg stem bark extract of ziziphus jujuba were formulated  by using carbopol 934, pvp k30 and gelatin as polymers. discs were made by granulation  and direct compression. discs were standardized based on the total phenol.  properties such as in vi...

(2)H-nuclear magnetic resonance (NMR) and neutron scattering (NS) on isotopically labelled samples have been combined to investigate the structure and dynamics of polyvinylpyrrolidone (PVP) aqueous solutions (4 water molecules/monomeric unit). Neutron diffraction evidences the nanosegregation of polymer main-chains and water molecules leading to the presence of water clusters. NMR reveals the s...

Current research has been done to develop statistically and optimized immediate release tablets for eslicarbazepine. Nineteen formulations of eslicarbazepine acetate are prepared by wet granulation. The three-dimensional Box-Behnken design at three levels (33) was developed study how selected independent variables affect dependent responses. After the initial test, items were as follows; polyvi...

Intravenous infusion of 500 ml of 6% polyvinylpyrrolidone (PVP, average molecular weight 40,000) in isotonic saline solution daily for 2 days induced prompt and significant reductions in serum cholesterol and triglyceride concentrations in eight hyperlipidemic patients. Mean maximal decrements in serum cholesterol and triglyceride were 29% and 28% below control values, respectively, occurring 5...

The structure, optical and magneto-optical properties of colloidal solutions iron oxide nanoparticles obtained by pulsed ablation in distilled water, both without additives with various functional additives: gold-hydrochloric acid, silicon oxide, polyvinylpyrrolidone, have been studied. It is shown that the main magnetic phase magnetite Fe 3 O 4 . size distribution degree their agglomeration de...

This communication describes a new method to achieve reversible light-induced chemical composition and phase structural transitions from polyvinylpyrrolidone-capped orthorhombic CsPbBr3 to tetragonal CsPb2Br5 nanosheets or vice versa. This work will deepen our understanding of the controlled synthesis, post-processing, and decomposition pathway of cesium lead halide perovskite nanocrystals.