OBJECTIVES Solid dispersion formulation is the most promising strategy to improve oral bioavailability of poorly water soluble drugs. The aim of this study was to compare the effect of polyvinylpyrrolidone K30 (PVP) and poloxamer-188 (PLX) as carrier in solid dispersion formulations of celecoxib (CLX). MATERIALS AND METHODS Solid dispersions of CLX:PVP or CLX:PLX were prepared at different ra...

Photoselective vaporisation of the prostate (PVP) is an established treatment option for bladder outlet obstruction (BOO). PVP has demonstrated durable clinical efficacy equivalent to other endoscopic procedures at 5 years [1]. Furthermore, PVP has demonstrated superior haemostatic properties compared with other endoscopic treatments for Benign Prostatic Hyperplasia (BPH) [2]. Despite this many...

Abstract Diverse wet adhesives were prepared from oleic acid (OA), polyvinyl pyrrolidone (PVP), and cis -1,4-polyisoprene (PI) at different ratios for attracting trapping insects. The of (PVP-PI)/OA 1:2, 1:1 2:1 (g/g). ratio between PVP PI was 9 to 1 blends irradiated with doses 10 50 kGy. Adhesion properties, water sorption, Fourier transform infrared spectroscopy, thermogravimetric analysis s...

Electrochemical behaviors of 1-naphthaleneacetic acid (NAA) at an ionic liquid N-butylpyridinium hexafluorophosphate (BPPF6/CPE) modified carbon paste electrode was investigated by cyclic voltammetry (CV) and further used for NAA sample determination. The experimental results showed that NAA at both the bared and the modified electrode showed an irreversible oxidation process, but at the modifi...

Upon addition of 1-naphthaleneacetic acid (1-NAA) and benzylaminopurine, flower buds developed on explants from flower stalks of Nicotiana tabacum L. cv Samsun cultured in vitro. At low concentrations of 1-NAA, buds emerged mainly at the basal edge, whereas at high concentrations they developed on the remaining surface. The optimum concentrations for the two groups of buds were 0.45 micromolar ...

polyvinylpyrrolidone  /  nickel  oxide  (pvp/nio)  dielectrics  were fabricated  with  sol-gel  method  using  0.2  g  of  pvp  at  different working  temperatures  of  80,  150  and  200  ºc.  structural  properties and surface morphology of the hybrid films were investigated by x-ray  diffraction  (xrd)  and  scanning  electron microscope  (sem) respectively. energy dispersive x-ray spectrosc...