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Transportní vlastnosti hydrogelových systémů na bázi hyaluronanu
Káčeríková, Martina ; Smilek, Jiří (oponent) ; Klučáková, Martina (vedoucí práce)
Táto práca sa zaoberá preštudovaním transportných vlastností hydrogélov pripravovaných interakciou hyaluronanu s tenzidom karbetopendeciniumbromidu (Septonex). Na preskúmanie schopnosti absorbovania či uvoňovania látky bola použitá nílska červeň, ako sonda na sledovanie tohto javu. Všetky hydrogély boli pripravované tzv. „mokrou“ cestou, kde sa pripravili zásobné roztoky hyaluronanu a tenzidu. Nílska červeň bola vždy pripravená v roztoku tenzidu, kedy sa po zmiešaní s hyaluronanom vytvorili zafarbené gély. Metódou spektrofotometrie boli následne zmerané absorbancie pôvodných ale aj zamenených supernatantov v sadách gélov po 24, 72 a 168 hodinách.
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Development of organic UV filtres based on natural extracts
Káčeríková, Martina ; Kovalčík, Adriána (oponent) ; Márová, Ivana (vedoucí práce)
This diploma thesis is focused on the development of organic UV filters. Organic UV filters were extracted from natural resources and encapsulated into nanomaterial-like delivery systems such as liposomes and nanofibres. SPF of particular extracts and carriers with encapsulated extracts were measured. All of the prepared extracts as well as carriers were characterised for their content of natural substances like phenolic compounds and their antioxidant acitvity, stability, cytotoxicity, micriobial acitivity and their safety were studied too. All of the prepared materials were evaluated as suitable for use in comestic industry. However, in a future, it would be appropriate to add to the study other experimental methods to increase the active substances and at the same time increase the SPF protection factor.
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Development of organic UV filtres based on natural extracts
Káčeríková, Martina ; Kovalčík, Adriána (oponent) ; Márová, Ivana (vedoucí práce)
This diploma thesis is focused on the development of organic UV filters. Organic UV filters were extracted from natural resources and encapsulated into nanomaterial-like delivery systems such as liposomes and nanofibres. SPF of particular extracts and carriers with encapsulated extracts were measured. All of the prepared extracts as well as carriers were characterised for their content of natural substances like phenolic compounds and their antioxidant acitvity, stability, cytotoxicity, micriobial acitivity and their safety were studied too. All of the prepared materials were evaluated as suitable for use in comestic industry. However, in a future, it would be appropriate to add to the study other experimental methods to increase the active substances and at the same time increase the SPF protection factor.
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Transportní vlastnosti hydrogelových systémů na bázi hyaluronanu
Káčeríková, Martina ; Smilek, Jiří (oponent) ; Klučáková, Martina (vedoucí práce)
Táto práca sa zaoberá preštudovaním transportných vlastností hydrogélov pripravovaných interakciou hyaluronanu s tenzidom karbetopendeciniumbromidu (Septonex). Na preskúmanie schopnosti absorbovania či uvoňovania látky bola použitá nílska červeň, ako sonda na sledovanie tohto javu. Všetky hydrogély boli pripravované tzv. „mokrou“ cestou, kde sa pripravili zásobné roztoky hyaluronanu a tenzidu. Nílska červeň bola vždy pripravená v roztoku tenzidu, kedy sa po zmiešaní s hyaluronanom vytvorili zafarbené gély. Metódou spektrofotometrie boli následne zmerané absorbancie pôvodných ale aj zamenených supernatantov v sadách gélov po 24, 72 a 168 hodinách.
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