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Stabilnost vezikularnih struktur v mešanicah lipid/glicerol/voda
ID Ivanova, Stefanija (Author), ID Kogej, Ksenija (Mentor) More about this mentor... This link opens in a new window

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Abstract
Liposomi so vezikularni strukturi, ki so sposobni ujeti tako hidrofobnih kot hidrofilnih spojin in se zato lahko uporabljajo kot nosilci za dostavo zdravil in makromolekul v človeška in živalska telesa. Liposome lahko izdelamo iz naravnih in sintetičnih fosfolipidov. V diplomskem delu smo se ukvarjali z novo liposomsko formulacijo brez uporabe farmakoloških neželenih organskih topil, ki so škodljivi za okolje, pri pripravi, uporabili smo dva različna lipida: jajčni lecitin in tekoči sončnični lecitin ter mešanice glicerola in vode kot topila za lipide v razližnih utežnih razmerjih. Raziskali smo velikost veziklov v pripravljenih suspenzijah lecitin/glicerol/voda z metodo dinamičnega sipanja svetlobe. Zanimal nas je še vpliv temperature na hidrodinamski radij veziklov ter ali dodatek olja CBD oziroma vodne raztopine lizocima vplivata na velikost veziklov. Potrdili smo hipotezo, da je velikost veziklov odvisna od razmerja med lecitinom, glicerolom in vodo. Več kot je v suspenziji glicerola, večji so vezikli. Ob dodatku olja CBD nastanejo manjši vezikli, v prisotnosti lizocima pa večji.

Language:Slovenian
Keywords:liposome, lecitin, CBD olje, lizocim, hidrodinamski radij, stabilnost
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2022
PID:20.500.12556/RUL-139801 This link opens in a new window
COBISS.SI-ID:127229955 This link opens in a new window
Publication date in RUL:07.09.2022
Views:783
Downloads:88
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Secondary language

Language:English
Title:Stability of vesicular structures in lipid/glycerol/water mixtures
Abstract:
Liposomes are vesicular structures capable of entrapping both hydrophobic and hydrophilic compounds and can therefore be used as carriers for the delivery of drugs and macromolecules into human and animal bodies. Liposomes can be made from natural and synthetic phospholipids. In this study, we dealt with a new liposomal formulation without the use of pharmacologically unwanted organic solvents that are harmful to the environment in the preparation, we used two different lipids: egg lecithin and liquid sunflower lecithin, and mixtures of glycerol and water as lipid solvents in different weight ratios. We investigated the size of the vesicles in the prepared lecithin/glycerol/water suspensions using the dynamic light scattering method. We were interested in the effect of temperature on the hydrodynamic radius of the vesicles and whether the addition of CBD oil or the aqueous solution of lysozyme affects the size of the vesicles. We confirmed the hypothesis that the size of the vesicles depends on the ratio between lecithin, glycerol and water. If there is more glycerol in the suspension, larger vesicles form. Smaller vesicles form when CBD oil is added, however larger ones do so when lysozyme is present.

Keywords:liposomes, lecithin, CBD oil, lysozyme, hydrodynamic radius, stability

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