| Naslov: | A method for the immobilization of chitosan onto urinary catheters |
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| 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) |
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| Datoteke: |  PDF - Predstavitvena datoteka, prenos (6,47 MB)
MD5: 54C1D71B0299D90A95E4DB7D7B5510BA
 URL - Izvorni URL, za dostop obiščite https://www.mdpi.com/1422-0067/23/23/15075/pdf?version=1669883521
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| Jezik: | Angleški jezik |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: |  IJS - Institut Jožef Stefan
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| 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. |
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| Ključne besede: | polymer, chitosan immobilization, adhesion, plasma-surface modification, biopolymers |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Datum sprejetja članka: | 28.11.2022 |
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| Datum objave: | 01.12.2022 |
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| Leto izida: | 2022 |
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| Št. strani: | str. 1-18 |
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| Številčenje: | Vol. 23 |
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| PID: | 20.500.12556/DiRROS-15884  |
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| UDK: | 533 |
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| ISSN pri članku: | 1422-0067 |
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| DOI: | 10.3390/ijms232315075 |
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| COBISS.SI-ID: | 131927043 |
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| 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;
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| Datum objave v DiRROS: | 05.12.2022 |
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| Število ogledov: | 849 |
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| Število prenosov: | 447 |
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| Metapodatki: |    |
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