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Naslov:A method for the immobilization of chitosan onto urinary catheters
Avtorji:ID Vesel, Alenka, Institut Jožef Stefan (Avtor)
ID Recek, Nina, Institut Jožef Stefan (Avtor)
ID Zaplotnik, Rok, Institut Jožef Stefan (Avtor)
ID Kurinčič, Albert (Avtor)
ID Kuzmič, Katja (Avtor)
ID Fras Zemljič, Lidija (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (6,47 MB)
MD5: 54C1D71B0299D90A95E4DB7D7B5510BA
 
URL URL - Izvorni URL, za dostop obiščite https://www.mdpi.com/1422-0067/23/23/15075/pdf?version=1669883521
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo IJS - Institut Jožef Stefan
Povzetek:A method for the immobilization of an antibacterial chitosan coating to polymeric urinary medical catheters is presented. The method comprises a two-step plasma-treatment procedure, followed by the deposition of chitosan from the water solution. In the first plasma step, the urinary catheter is treated with vacuum-ultraviolet radiation to break bonds in the polymer surface film and create dangling bonds, which are occupied by hydrogen atoms. In the second plasma step, polymeric catheters are treated with atomic oxygen to form oxygen-containing surface functional groups acting as binding sites for chitosan. The presence of oxygen functional groups also causes a transformation of the hydrophobic polymer surface to hydrophilic, thus enabling uniform wetting and improved adsorption of the chitosan coating. The wettability was measured by the sessile-drop method, while the surface composition and structure were measured by X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy. Non-treated samples did not exhibit successful chitosan immobilization. The effect of plasma treatment on immobilization was explained by noncovalent interactions such as electrostatic interactions and hydrogen bonds.
Ključne besede:polymer, chitosan immobilization, adhesion, plasma-surface modification, biopolymers
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum sprejetja članka:28.11.2022
Datum objave:01.12.2022
Leto izida:2022
Št. strani:str. 1-18
Številčenje:Vol. 23
PID:20.500.12556/DiRROS-15884 Novo okno
UDK:533
ISSN pri članku:1422-0067
DOI:10.3390/ijms232315075 Novo okno
COBISS.SI-ID:131927043 Novo okno
Opomba:Nasl. z nasl. zaslona; Soavtorji: Nina Recek, Rok Zaplotnik, Albert Kurinčič, Katja Kuzmič, Lidija Fras Zemljič; Opis vira z dne 1. 12. 2022; Št. članka: 15075;
Datum objave v DiRROS:05.12.2022
Število ogledov:441
Število prenosov:272
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Gradivo je del revije

Naslov:International journal of molecular sciences
Skrajšan naslov:Int. j. mol. sci.
Založnik:MDPI
ISSN:1422-0067
COBISS.SI-ID:2779162 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:L2-3163
Naslov:Razvoj varnih večnamenskih površin za katetre za preprečevanje nastanka biofilmov (DemoCat)
Akronim:DemoCat

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:polimeri, imobilizacija hitozana, adhezija, površinska modifikacija, plazemska funkcionalizacija, biopolimeri


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