Optimalizace přípravy biodegradovatelných nanonosičů léčiv

Kvasnicová, Lucia

Charles University, Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical technology Candidate: Mgr. Lucia Kvasnicová Consultant: PharmDr. Ondřej Holas Ph.D. Title of Thesis: Optimising the preparation of biodegradable drug nanocarriers The theoretical part was devoted to different types of nanoparticles, especially those which were prepared from poly(α-hydroxy acids). Other chapters were devoted to methods of their preparation- either from pre- prepared polymers or from directly polymerized monomers and the use of nanoparticles in medicine. The experimental part was aimed at optimizing the preparation of various derivates of poly(lactic-co-glycolic acid) (PLGA) using a nanoprecipitation method with medicated model drug. Rhodamine B was used as a model drug and poloxamer Pluronic® F127 was used as a stabilizer. The size of nanoparticles, their index of polydispersity (PDI) and the zeta potential were measured in the experimental part. Recovery yield, encapsulation efectivity and relative encapslation efectivity were also measured. The results showed that acetone was more suitable solvent than acetonitrile. The most appropriate weight of polymers was 20 mg, when the values of PDI were less than 0,2 and the size of nanoparticles was between 100 nm to 300 nm, so these samples had high...

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