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Title:ADSORPCIJA FORMULACIJE HITOZANA IN KURKUMINA NA VISKOZNE TKANINE ZA MEDICINSKE NAMENE
Authors:ID Plošnik, Alja (Author)
ID Leitgeb, Maja (Mentor) More about this mentor... New window
Files:.pdf UNI_Plosnik_Alja_2012.pdf (1,65 MB)
MD5: 2429EADE27F66396B94862115180B3DE
PID: 20.500.12556/dkum/3aad4be2-d6b3-4604-8adb-4f0d20268057
 
Language:Slovenian
Work type:Undergraduate thesis
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Zaradi porasta okužb in bolezni, ki so posledica mikrobiološkega delovanja, je uporaba medicinskih tekstilij v sodobnem času vse bolj pomembno in razvijajoče se področje tekstilne industrije. Zaradi vse večje osveščenosti ljudi in dviga standarda je želja teh razvojnih področij najti trajne rešitve funkcionalizacije tekstilnih materialov z naravnimi spojinami, ki imajo protimikrobne in antioksidativne lastnosti ter hkrati blagodejno delujejo na ljudi in okolje. Med naravne polisaharide, ki delujejo protimikrobno, spada tudi hitozan, katerega molekulska struktura omogoča celo paleto modifikacij. Hitozan je modificiran naravni ogljikov hidrat, pridobljen iz hitina, ki je osnovna sestavina skeletov rakov, školjk, insektov, gob in alg. Ima sposobnost inhibicije bakterij, gliv in virusov. Ne glede na dejstvo, da hitozan izkazuje odlične lastnosti kot so dobra adhezivnost, protimikrobno delovanje in biorazgradljivost, pa je njegova pomanjkljivost šibka antioksidativnost. Zaradi ugotovitve toksikologov in nutricionistov glede kancerogenosti nekaterih sintetičnih antioksidantov se kot alternativa za izboljšano antioksidacijsko kapaciteto vse več uporabljajo naravne snovi z dokazano antioksidacijsko aktivnostjo. Mednje sodijo rastlinski (poli)fenoli. Tem kriterijem ustreza kurkumin, izvleček iz azijske začimbe Turmeric (Curcuma Longa), ki poleg močnega antioksidativnega delovanja nudi še protivnetno in protivirusno delovanje. Namen našega dela je razvoj novih sinergističnih formulacij med hitozanom in kurkuminom, ki bodo izkazovale protimikrobne in antioksidativne lastnosti. Formulacije smo adsorbirali na viskozno tkanino z namenom protimikrobne in antioksidativne funkcionalizacije, ki je bistvena za medicinske tekstilije. Izvedli smo različne tehnike nanosa z različnimi kombinacijami obeh raztopin polimerov (hitozan-kurkumin) ter med njimi poiskali tisto, ki nam podaja optimalno delovanje vseh želenih lastnosti. Cilj naše diplomske naloge pa je tudi preučiti vezavo teh dveh spojin na tekstilni material ter ugotoviti naravo vezave oz. desorpcijo substanc s površine vlaken.
Keywords:hitozan, kurkumin, viskozna vlakna, sinergistična formulacija, antioksidativno delovanje, protimikrobno delovanje
Place of publishing:Maribor
Publisher:[A. Plošnik]
Year of publishing:2012
PID:20.500.12556/DKUM-37820 New window
UDC:[543.318.3:633.826]:61(043.2)
COBISS.SI-ID:16702742 New window
NUK URN:URN:SI:UM:DK:UZ4WVOD6
Publication date in DKUM:13.09.2012
Views:3176
Downloads:277
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:ADSORPTION OF FORMULATION CHITOSAN AND CURCUMIN ON VISCOSE FIBERS USED FOR MEDICAL PURPOSES
Abstract:Because of the rise of infections and diseases caused by microbiological activity the use of medical textiles is becoming increasingly important and expanding field of textile industry nowadays. Due to the increasing awareness of people and the rise of the standard the desire of developmental areas is to find lasting solutions for functionalization of textile materials with natural compounds that have antimicrobial and antioxidant properties and beneficial effects on both humans and the environment. Chitosan is on of the natural polysaccharides with antimicrobial activity and has a molecular structure which allows a wide range of modifications. It is a modified natural carbohydrate derived from chitin, which is a core component of the skeletons of crustaceans, molluscs, insects, fungi and algae. It has the ability to inhibit bacteria, fungi and viruses. Notwithstanding the fact that chitosan shows excellent properties such as good adhesion, anti-microbial activity and biodegradation, its disadvantage is shown in weak antioxidant efficiency. Due to the discoveries of toxicologists and nutritionists regarding the carcinogenicity of some synthetic antioxidants the alternative for improved antioxidant capacity to use natural substances with proven antioxidant activity is becoming very popular. These natural substances include plant (poly)phenols. Curcumin, an extract from the Asian spice Turmeric (Curcuma longa) also offers strong antioxidant, anti-inflammatory and antiviral activity. The purpose of our work is to develop new synergetic combinations between chitosan and curcumin which will demonstrate antimicrobial and antioxidant characteristics. Diverse synergetic combinations were adsorbed onto the viscous fabric to reach the antimicrobial and antioxidant functionalization, essential for medical textiles. We carried out various techniques of applying different combinations of the two polymer solutions (chitosan-curcumin) and find the one that gives us the optimal functioning of all the desired properties. The goal of our thesis is also to examine the binding of these two compounds on the textile material and to determine the nature of binding and desorption of substances on the surface of the textiles.
Keywords:chitosan, curcumin, viscose, synergistic formulation, antioxidant activity, anti-microbial activity


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