This study reports on the development of novel biodegradable microspheres prepared by oil-in-water–oil (O/W/O) double emulsion technique using the blends of poly (D, L-lactide-co-glycolide) (PLGA) and polycaprolactone (PCL) in different ratios for the controlled delivery of metronidazole (MTZ). Metronidazole encapsulation of up to 40% was achieved within the polymeric microspheres. Blend placeb...

BACKGROUND A novel lovastatin (LVT)-loaded poly(lactic acid) microsphere suitable for oral administration was developed in this study, and in vitro and in vivo characteristics were evaluated. METHODS The designed microspheres were obtained by an improved emulsion-solvent evaporation method. The morphological examination, particle size, encapsulation ratio, drug loading, and in vitro release w...

Highly hierarchical hollow bismuth tungstate (Bi2WO6) microspheres self-assembled by thin nanoplates have been fabricated via a facile template-free solvothermal route. The possible growth pattern and formation mechanism of hierarchical hollow Bi2WO6 microspheres was investigated. The excellent visible-light-driven photocatalytic performance on rhodamine B (RhB) degradation was displayed by hie...

The present study involves preparation and evaluation of floating microspheres with cimetidine as model drug for prolongation of gastric residence time. The microspheres were prepared by the solvent evaporation method using polymers hydroxypropylmethyl cellulose and ethyl cellulose. The shape and surface morphology of prepared microspheres were characterized by optical and scanning electron mic...

The aim of this study was to develop and characterize pirfenidone (PF)-loaded chitosan microspheres for lung targeting. The microspheres were prepared using the emulsion-solvent evaporation method and characterized by assessing morphology, particle size, and zeta potential. The microspheres had a spherical nature with highly smooth and integrated surfaces. The particle size of microspheres was ...

The present work was to prepare and evaluate colon specific meloxicam loaded microspheres for the treatment of rheumatoid arthritis. Sodium alginate microspheres were prepared by using emulsification method using different ratios of sodium alginate (1:1, 1:2, 1:3 and 1:4). Prepared microspheres were coated with eudragit S100. The microspheres were characterized for different physical parameters...

Novel immunomagnetic microspheres have been prepared for separation of CD4 + lymphocytes. The magnetic nanoparticles with a diameter of approximately 78 nm were first synthesized by co-precipitation from ferrous and ferric iron solutions and subsequently entrapped within poly (glycidyl methacrylate) (PGMA) microspheres by a swelling and penetration process. Monoclonal antibody specific to CD4 m...

Transcatheter arterial chemoembolization was an important method in the treatment of solid cancers and the effectiveness of such treatment depends on the nature of embolic agent. Due to the biocompatibility, controllable degradation rate, and both hydrophobicity-hydrophilicity, researches of application on poly(lactic-co-glycolic acid) (PLGA) in medical practice has been ongoing for more than 4...

The aim of present study was to formulate and evaluate the loxoprofen loaded Sustained release microspheres by emulsion solvent evaporation technique. Ethylcellulose, a biocompatible polymer is used as the retardant material. The effects of process conditions such as drug loading, polymer type and solvent type on the characteristics of microspheres were investigated. The prepared microspheres w...

Post-coating of biodegradable polylactides (PLA)/polyethylene glycol (PEG) microspheres with a gelatin film produced by dipping the microspheres into a gelatin solution to reduce the initial drug release burst was investigated. Biodegradable block PLA/PEG microspheres, prepared by w/o emulsion/solvent evaporation, showed that the hydrophilic segment PEG protruded to the sphere surface. However,...