20. September 2017
Abstract The objective of this study was to evaluate the combination of pH-dependent and time-dependent polymers on drug release in order to optimize coating for colonic delivery. Response surface methodology (RSM) based on central composite design (CCD) was employed for formulation optimization. Theophylline was used as model drug and Eudragit® FS 30D and hydroxypropyl methylcellulose (HPMC) were used as pH-dependent and time-dependent polymer, respectively. Dissolution test was carried out...
29. August 2017
Electrospinning of Eudragit® FS 100 was investigated for the first time.
• Novel AC electrospinning produced excellent quality nano fibers at high throughput.
• Melt rheology of Eudragit® FS 100 was thoroughly explored.
• Eudragit® FS-based solid dispersions provided excellent control on release of poorly soluble spironolactone as pH varied.
03. March 2016
The purpose of this study is to characterize the properties of Eudragit® FS-based granules prepared using melt extrusion process for colonic drug delivery. 5-Aminosalicylic acid (5-ASA), theophylline, and diclofenac sodium were used as the model compounds. Drug and polymer blends were melt-extruded into thin rods using a single screw extruder. Drugs were found to be dispersed as crystalline particles in the granules. A hammer mill was used to reduce the extrudate into 16–40 mesh granules,...