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Formulation of vancomycin loaded PLGA nanoparticles for local treatment of musculoskeletal infections II.
Ptáčková, Karolína ; Šnejdrová, Eva (advisor) ; Zbytovská, Jarmila (referee)
Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Technology Author: Karolína Ptáčková Title of thesis: Formulation of vancomycin loaded PLGA nanoparticles for local treatment of musculoskeletal infections II. Supervisor: PharmDr. Eva Šnejdrová, Ph.D. Consultant: Mgr. Vladislav Frolov The aim of the work was to formulate vancomycin hydrochloride (Van-HCl) loaded PLGA nanoparticles (NPs) using a double emulsion method for the local treatment of musculoskeletal infections. During preparation, selected critical formulation factors were modified and their influence on the characteristics of nanoparticles was studied. The size of the NPs determined by the DLS method ranged from 200 to 800 nm, the PDI was lower than 0.2 in most batches. The encapsulation efficiency (EE) determined by the direct method ranged from 2 % to 9 %. Glycerol monostearate at a concentration of 15 mg/ml proved to be a suitable primary emulsion stabilizer. The optimal concentration of PVA for stabilizing the nanosuspension was 30 mg/ml. The size of the NPs was influenced by the intensity of homogenization and the concentration of PVA. The concentration of Van-HCl, the organic solvent used and the intensity of homogenization led to an increase in EE. The DSC method confirmed that Van-HCl remains...

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