Chitosan nanoparticles have been prepared using an ionic gelation method. The effects of freezedrying, cryoprotectant (D-trehalose) utilisation and ultrasonication time on the mean particle size, size distribution and stability of nanoparticles were investigated. The size distribution results indicated that freeze-drying caused the particles to agglomerate. Addition of the cryoprotectant and ul...

Objective(s): Nanoparticles (NPs) are known for their specific accumulation in the inflamed tissues of the colon and thus allow a selective delivery to the site of inflammation with minimum adverse effects. The main objective of this work is to attain mesalamine loaded chitosan nanoparticles as a carrier for oral delivery. Methods: In this study, me...

-Gelation and precipitation are two possible outcomes for the polymerization of monomers dissolved in a solvent. Gelation is obtained when the polymers

in this paper, polyacrylamide/chromium acetate gel polymer system was prepared as water shut-off system to control water production in one of the iranian oil reservoirs condition. effect of various parameters such as temperature (90 °c) and water formation from view point of salinity and divalent cations, was evaluated on the gelation kinetic and gel strength using bottle testing method. the re...

The objective of the present study was to prepare microbeads Simvastatin loaded with sodium alginate provide control release drug delivery system. So, design system improve and enhance bioavailability drug. were prepared by ionic gelation method using polymer such as a natural substance. formulated different cross linking agent like CaCl₂, BaCl₂, ZnCl₂ FeCl₃ in ratio. spherical, free flowing ex...

Studies on the functionality of muscle proteins in gelation mechanisms of structured meat products during the last three decades are briefly reviewed. Among muscle proteins, myosin is primarily the most important protein for gelation, whereas actin plays a complementary role in gelation when it coexists with myosin. The combined data of gelation and denaturation indicate that the gelation of my...