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Study of polyethylene terephthalate surface treatment with polysaccharides for medical application : doctoral dissertationIndest, TeaPolimerni biomateriali so materiali, ki so primerni za implantacijo. Različne tekstilne tvorbe v pleteni, tkani kakor tudi netkani obliki, igrajo med biomateriali pomembno vlogo, zaradi svojih ... specifičnih mehanskih in morfoloških lastnosti. Vlaknati biomateriali so v medicini našli zelo raznovrstno uporabnost: kirurške niti, žilni vsadki, srčne zaklopke, umetni ligamenti... Polietilen tereftalat (PET) se pogosto uporablja v žilni kirurgiji kot sintetični žilni vsadek, saj ima zadovoljivo biokompatibilnost. Vendar pa so komplikacije po implantaciji, kot so anevrizma, tromboza ali restenoza, še vedno zelo pogoste, predvsem pri žilnih vsadkih majhnih premerov. Veliko študij raziskuje možnosti izboljšanja biokompatibilnih lastnosti žilnih vsadkov in posledično zmanjšanja pooperativnih zapletov. Namen disertacije je bil preučiti različne površinske modifikacije PET materiala, ki bi izboljšale njegove možnosti za uporabo v stiku s krvjo. Prav tako pa je bil namen naloge pridobiti poglobljeno znanje o vplivih posameznih površinskih obdelav z različnimi kombinacijami biopolimerov na biokompatibilnost obdelanih površin. V ta namen smo izbrali hitozan, sulfoniran hitozan fukoidan, pridobljen iz alg. Za boljšo adsorpcijo polisaharidov na PET površino, smo le-to predhodno aktivirali s hidrolizo. Adsorpcijo biopolimerov na aktivirano PET površino smo zasledovali s QCM tehniko. Dosežene površinske učinke pa z XPS, AFM in določanjem potenciala zaradi pretoka. Iz rezultatov je razvidno, da je bila modifikacija PET materiala s polisaharidi (hitozan, fukoidan in 6-0-sulfoniran hitozan) uspešna in da zmanjšana adsorpcija proteina HSA potrjuje doseženo izboljšano biokompatibilnost tako modificiranih PET površin.Type of material - dissertation ; adult, seriousPublication and manufacture - Maribor : [T. Indest], 2007Language - englishCOBISS.SI-ID - 233226752
Author
Indest, Tea
Other authors
Stana-Kleinschek, Karin |
Laine, Janne |
Strnad, Simona, 1965-
Topics
žilni vsadki |
polisaharidi |
hitozan |
fukoidan |
sulfoniziran hitozan |
elektrokinetične lastnosti |
adsorpcija proteina |
endotelne celice |
polimerni biomateriali |
polietilen tereftalat
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GS II 0000625580 glavno skladišče GS II 625580 glavno skladišče |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Indest, Tea | 24334 |
Stana-Kleinschek, Karin | 07814 |
Laine, Janne | |
Strnad, Simona, 1965- | 10575 |
Source: Personal bibliographies
and: SICRIS
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