02. September 2018
The current study was aimed to develop extended release (ER) pellets formulations containing zaltoprofen as a model drug and cross-linked starch-κ-carrageenan (Sκ-C) hydrogel composite as a binder and extended release polymer. The Sκ-C cross-linked hydrogel composites were prepared using a 32full factorial design approach and characterized by FTIR, DSC, XRD and SEM analysis. The matrix pellets were prepared by extrusion-spheronization technique and characterized production yield, FTIR, DSC,...
02. July 2018
The aim of this study was to develop self-nanoemulsifying drug delivery system (SNEDDS) of bosentan using quality by design (QBD) approach with better bioavailability. The major component of the formulation vis-à-vis lipid (Capmul MCM), surfactant (LABRASOL) and co-surfactant (PEG 600) were selected on the basis of saturation solubility. Mixture of LABRASOL and PEG 600 in the ratio of 1:1 showed better nano emulsifying region as depicted by pseudo ternary phase diagram. The optimum mixture of...
15. March 2017
Abstract Composite films were sprayed from mixtures of water soluble hydroxypropyl methylcellulose (HPMC) and either nanofibrillated cellulose (NFC) or cellulose nanocrystals (CNC). Fiber diameter was similar for both nanocelluloses but fiber length was several μm for NFC and about 200 nm for CNC. Films were characterized for morphology, swelling, mass loss and transport properties. NFC-HPMC films swelled less than CNC-HPMC films; with a HPMC content of 20 wt% NFC-HPMC and CNC-HPMC films...
14. September 2016
Abstract The objective of present study was to explore the application of Soluplus® as a stabilizer for the preparation of febuxostat (FEB) nanocrystals using ball milling technique. Preliminary trials were performed for the selection of stabilizer from HPMC VLV, PVA, PVP K30, Poloxamer 188 and Soluplus®. Soluplus® stabilized FEB nanocrystals were found stable and had least particle size as compared to the batches prepared using other stabilizers. A systematic optimization of critical...
29. March 2016
Microcrystalline Cellulose (MCC) pellets containing highly water soluble compound A was formulated with highest pellet usable yield of 86%, aspect sphericity that is (aspect ratio less than 1.1 and roundness greater than 0.85), minimum friability of 0.33% by extrusion and Spheronization technique. A Central Composite Design (CCD) was executed to estimate the effect of formulation and process variable namely water (21-41%), spheronization time (1-9 min) and Spheronization speed (200-800) to...
12. March 2016
Objective: The objective of the current work was to develop Ivabradine hydrochloride (HCl) floating pulsatile pellets containing drug loaded calcium alginate pellets coated with pH-dependent polymer Eudragit S100 oil dispersion. Methods: Fluidized bed coating technique was used to develop pellets. A 22 factorial design was employed to study the effect of independent variables (inlet air temperature, spray rate), on dependent variables (% entrapment efficiency, % friability, and average particle...
27. February 2016
The present study concerns the preparation of ternary composites via the in situ encapsulation of solid dispersion of diclofenac sodium within the acrylic polymer beads. The encapsulating species were produced through the hydrolysis and condensation of the silica precursors (tetraethoxysilane or ethyltriethoxysilane) introduced into the solid dispersion. The transformation of precursors occurred in the vapor phase of ammonia. A great advantage of the presented vapor-phase method is preventing...
23. January 2016
This paper describes the preparation and the release properties of composite materials based on Pluronic F127 and gelatin hydrogels, which could be of interest in the field of enteral nutrition or drug administration. The composites were prepared by exploiting the opposite responsivity to temperature of a 20% w/w Pluronic F127 aqueous solution (critical gelation temperature around 23 °C) and gelatin (gel–sol temperature transition around 30 °C). More
26. December 2015
Biopolymers are naturally occurring polymeric biomolecules. They are easily accessible, relatively cheap, can be synthetically altered and biodegradable. Locust bean gum and Xanthan gum is widely used ingredient in drug formulations due to their non interacting behavior with the drug and less toxicity. Microparticle formulations of celecoxib, a COX-2 inhibitor were formulated using Locust bean gum and Xanthan gum. More