Articles Related to Polyethylene Glycol
A New Bi-Functional Derivative of Polyethylene Glycol as Molecular Carrier for Eugenol and Ibuprofen
Eugenol (EU) and ibuprofene (IBU) were covalently bound to a bi-functionalized PEG, used as molecular carrier of drugs and the release kinetics of the two bioactive molecules was studied in vitro in buffer solution at pH 7.4, in simulated gastric fluid and in mouse plasma.
Wet Granulation to Overcome Liquisolid Technique Issues of Poor Flowability and Compactibility: A Study to Enhance Glibenclamide Dissolution
The aim of this study is to apply wet granulation on liquisolid powders to overcome issues of poor powder flowability and compressibility especially with using high viscosity liquid vehicles. Different liquisolid formulations were made using three excipients where the effect of each excipient used in the dissolution of the model hydrophobic drug (Glibenclamide) was evaluated. The Glibenclamide tablets were formulated using PEG 400, Synperonic PE/L44 and Cremophor ELP, at a 10 %w/w in liquid vehicle drug concentration. The carrier (Avicel®PH102) was used followed by colloidal silicon dioxide (coating material) that converted the wet mixture into dry powder. Potato starch, 5%w/w, as a disintegrant was mixed with the mixture manually for 10 minutes and was finalized by adding 0.75% of magnesium stearate as a lubricant.
Cancer is a highly heterogeneous disease characterised by continuous uncontrolled growth and expansion of abnormal cells. In general, in tumor cells the signalling pathways regulating cellular processes, as cell growth and division and cell to cellcommunication result strongly altered.
In recent years many progress has been achieved in the biomedical and biopharmaceutical fields particularly in drug delivery and regenerative medicine. This has been possible thanks to the increased expertise in polymers chemistry as well as the advent of innovative techniques of materials manipulation that have lead to the production of new “smart” polymeric devices with peculiar propertiesable to selectively reach almost all areas of the human body, in the case of drug delivery systems, or to reduce the chemical-physical gap between human tissues and synthetic devices, in the case of tissue engineering.