magistrsko delo
Vita Mihelič (Author), Rok Ambrožič (Mentor), Urška Šebenik (Thesis defence commission member), Igor Plazl (Thesis defence commission member)

Abstract

Funkcionalizirani polimeri, kamor spada tudi hidrogel iz hitozana, modificiran s kateholom, postajajo vedno bolj zanimivi in aktualni. Hitozan je bioaktiven, netoksičen in okolju prijazen polimer z antibakterijskimi lastnostmi. Poleg tega se ga da enostavno modificirati, zato je primeren za številne aplikacije na različnih področjih. Lastnosti hitozana omogočajo pH odvisno sol-gel pretvorbo, preko katere pride do nastanka hidrogelne mreže. Ta mehanizem se lahko izkoristi za elektrodepozicijo hitozana na elektro prevoden substrat. Hidrogel je lahko dodatno modificiran s kateholom, naravnim adhezivnim proteinom. Modifikacija poteka kemijsko ali elektro-kemijsko z anodno oksidacijo. Na hidrogel vezani kateholi se oksidirajo in kot stranski produkt se tvorijo aktivne kisikove zvrsti, kot je na primer vodikov peroksid. Aktivne vodikove zvrsti se lahko uporabijo za degradacijo organskih onesnaževal, v mikrosistemu pripravljene hidrogele pa kot antimikrobne hidrogele.

Keywords

hitozan;katehol;hidrogeli;elektrodepozicija;antimikrobnost;magistrska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [V. Mihelič]
UDC: 66.02:678(043.2)
COBISS: 202777603 Link will open in a new window
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Downloads: 11
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Other data

Secondary language: English
Secondary title: Development of antimicrobial hydrogel films from chitosan using microfluidic technology
Secondary abstract: Functionalized polymers, such as catechol-modified chitosan hydrogel, are becoming increasingly interesting and relevant. Chitosan is a bioactive, non-toxic, and environmentally friendly polymer with antibacterial properties. Additionally, it can be easily modified, making it suitable for a wide range of applications in various fields. The properties of chitosan allow for a pH-dependent sol-gel conversion, forming a hydrogel network. This mechanism can be utilized to electrodeposit chitosan onto an electrically conductive substrate. The hydrogel can be further enhanced with catechol, a natural adhesive protein, through chemical modification or electrochemical anodic oxidation. When catechols are bound to the hydrogel and oxidized, active oxygen species such as hydrogen peroxide are produced as by-products. These active oxygen species can be used to degrade organic pollutants, and the hydrogels prepared in this microsystem can serve as antimicrobial hydrogels.
Secondary keywords: chitosan;catechol;hydrogel;antimicrobial;microfluidic system;Mikrofluidna tehnika;Polimeri;Univerzitetna in visokošolska dela;
Type (COBISS): Master's thesis/paper
Study programme: 1000376
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemijsko inženirstvo
Pages: 1 spletni vir (1 datoteka PDF (58 str.))
ID: 24505644