Studium interakcí biomateriálů s humánními buňkami
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Vysoké učení technické v Brně. Fakulta chemická
Abstract
Bakalárska práca bola zameraná na zavedenie techník kultivácie ľudských buniek in vitro a optimalizácii ich využitia v testoch cytotoxicity, prípadne na štúdium interakcií s biomateriálmi a s pripravenými organicko-anorganickými nanočasticami. V teoretickej časti boli opísané základné podmienky kultivácie, charakteristika keratinocytov ako bunkových kultúr vhodných pre testovanie, základné charakteristiky pripravovaných častíc a krátka rešerš o najpoužívanejších testoch pre zisťovanie toxicity charakterizovaných častíc. V experimentálnej časti bola prevedená optimalizácia prípravy strieborných častíc, kde bolo ako najvhodnejšie redukčné činidlo vybraná maltóza. Priemerná veľkosť takto pripravených častíc bola 35 nm. V práci bola testovaná aj možnosť prípravy kombinovaných organicko-anorganických častíc. Pripravené boli lipozómové častice, PHB častice, alginátové častice a chitozanové častice, do ktorých boli enkapsulované pripravené strieborné nanočastice. Ako najlepšie z pripravených kombinovaných častíc boli vyhodnotené lipozómové častice pripravené pomocou ultrazvuku. Ako bunkové línie pre skúmanie interakcií častíc s humánnymi bunkami boli vybraté ľudské keratínocyty. V rámci práce boli zavedené metódy kultivácie a pasážovania keratínocytov, boli optimalizované podmienky práce s bunkovými kultúrami a ich využitia k testovaniu cytotoxicity pomocou MTT testu.
The bachelor thesis was focused on introducing of techniques of cultivation of human cells in vitro and optimization of their uses in variety of cytotoxicity tests. Further, in this work were studied also interactions of cells with biomaterials and prepared organic-inorganic nanoparticles. In the theoretical part the basic conditions of cell cultivation, the characteristics of keratinocytes as cell cultures, basic characteristics of particles and also short search about the most used tests of cytotoxicity on various cells systems were described. The experimental part was focused on the optimizing the preparation of silver particles, where maltose was chosen as the most appropriate reduction agent. The average size of these prepared particles was 35 nm. The possibility of preparation of combined organic-inorganic particles including liposome particles, PHB particles, alginate particles and chitosan particles was also tested in the thesis. Later, the silver nanoparticles were encapsulated into these organic-inorganic particles as an inorganic component. The liposome particles prepared by ultrasound were evaluated as the most stable of all the other prepared particles. Human keratinocytes were chosen as the cell cultures that were needed for the observation of the particle interactions with human cells. In this work basic methods of cell cultivation and passage were introduced. Conditions of experimental work in cell culture laboratory were setting and possible application of cell cultures to cytotoxicity testing by MTT was tested.
The bachelor thesis was focused on introducing of techniques of cultivation of human cells in vitro and optimization of their uses in variety of cytotoxicity tests. Further, in this work were studied also interactions of cells with biomaterials and prepared organic-inorganic nanoparticles. In the theoretical part the basic conditions of cell cultivation, the characteristics of keratinocytes as cell cultures, basic characteristics of particles and also short search about the most used tests of cytotoxicity on various cells systems were described. The experimental part was focused on the optimizing the preparation of silver particles, where maltose was chosen as the most appropriate reduction agent. The average size of these prepared particles was 35 nm. The possibility of preparation of combined organic-inorganic particles including liposome particles, PHB particles, alginate particles and chitosan particles was also tested in the thesis. Later, the silver nanoparticles were encapsulated into these organic-inorganic particles as an inorganic component. The liposome particles prepared by ultrasound were evaluated as the most stable of all the other prepared particles. Human keratinocytes were chosen as the cell cultures that were needed for the observation of the particle interactions with human cells. In this work basic methods of cell cultivation and passage were introduced. Conditions of experimental work in cell culture laboratory were setting and possible application of cell cultures to cytotoxicity testing by MTT was tested.
Description
Citation
MASLONKOVÁ, I. Studium interakcí biomateriálů s humánními buňkami [online]. Brno: Vysoké učení technické v Brně. Fakulta chemická. 2016.
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Document version
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cs
Study field
Biotechnologie
Comittee
prof. RNDr. Ivana Márová, CSc. (předseda)
doc. RNDr. Alena Španová, CSc. (místopředseda)
doc. Ing. Bohuslav Rittich, CSc. (člen)
doc. Ing. Pavel Diviš, Ph.D. (člen)
doc. Ing. Stanislav Obruča, Ph.D. (člen)
RNDr. Renata Mikulíková, Ph.D. (člen)
Date of acceptance
2016-06-15
Defence
1. Studentka seznámila členy komise s náplní a cílem bakalářské práce.
2. Byly přečteny posudky na bakalářskou práci.
3. Studentka akceptovala všechny připomínky oponenta a na všechny otázky odpověděla v plné šíři.
Diskuse
doc. Španová:
Jak se připravovaly nanočástice stříbra ?
doc. Diviš:
Únik stříbra do ovzduší (množství) ?
Forma stříbra ve vodném prostředí ?
Result of defence
práce byla úspěšně obhájena
Document licence
Standardní licenční smlouva - přístup k plnému textu bez omezení