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master's thesis
Characterization and antibacterial effect of modified polymer surfaces
2023. urn:nbn:hr:166:819456
Bačeković, Marija
University of Split
Faculty of Science
Department of Physics

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Bačeković, M. (2023). Characterization and antibacterial effect of modified polymer surfaces (Master's thesis). Split: University of Split, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:166:819456

Bačeković, Marija. "Characterization and antibacterial effect of modified polymer surfaces." Master's thesis, University of Split, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:166:819456

Bačeković, Marija. "Characterization and antibacterial effect of modified polymer surfaces." Master's thesis, University of Split, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:166:819456

Bačeković, M. (2023). 'Characterization and antibacterial effect of modified polymer surfaces', Master's thesis, University of Split, Faculty of Science, accessed 09 December 2024, https://urn.nsk.hr/urn:nbn:hr:166:819456

Bačeković M. Characterization and antibacterial effect of modified polymer surfaces [Master's thesis]. Split: University of Split, Faculty of Science; 2023 [cited 2024 December 09] Available at: https://urn.nsk.hr/urn:nbn:hr:166:819456

M. Bačeković, "Characterization and antibacterial effect of modified polymer surfaces", Master's thesis, University of Split, Faculty of Science, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:166:819456

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Metadata
TitleCharacterization and antibacterial effect of modified polymer surfaces
Title (croatian)Karakterizacija i antibakterijski efekt modificiranih polimernih površina
AuthorMarija Bačeković
MentorLucija Krce (mentor)
Committee memberLucija Krce (predsjednik povjerenstva)
Committee memberAnte Bilušić (član povjerenstva)
Committee memberIvana Weber (član povjerenstva)
GranterUniversity of Split
Faculty of Science
(Department of Physics)
Split
Defense date and country2023-12-21, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract
This thesis investigates the morphological characteristics of polymers with surface modifications that promote antibacterial effect. Four common polymers underwent detailed morphological analysis using a scanning electron microscope (SEM). Focusing on PET and HDPE, both polymers underwent Atmospheric pressure plasma jet treatment for increased surface roughness. Subsequent enhancement with Ag and ZnO colloids was examined using SEM. EDS analysis provided insights into atomic composition, while AFM measured surface roughness. Because of the challenges posed by non-conductivity and low surface roughness, SEM imaging was conducted with low accelerating voltage on coated samples. Notably, an increase in roughness post plasma jet treatment was observed and nanoparticles were successfully imaged. Antibacterial efficacy, evaluated against S. aureus, indicated a observable effect in colloidal-enhanced samples. Further research should address improvement of the antibacterial effect and its testing protocol.
Abstract (croatian)
U ovom radu istražuju se morfološka svojstva polimera s površinskim modifikacijama koje potiču antibakterijski učinak. Četiri uobičajena polimera prošla su detaljnu morfološku analizu pomoću skenirajućeg elektronskog mikroskopa (eng. SEM - scanning electron microscope). Fokusirajući se na PET (eng. Polyethylene Terephthalat) i HDPE (eng. High-Density Polyethylene), oba su polimera podvrgnuta tretmanu putem atmosferskog plazmenog mlaza kako bi se povećala hrapavost površine. Naknadno poboljšanje koloidima Ag i ZnO ispitano je pomocu SEM-a. Energijski razlučujuća rendgenska spektroskopija (eng. EDS - energy dispersive spectroscopy) omogućila je uvid u atomski sastav, dok je mikroskopija atomskih sila (eng. AFM - atomic force microscopy) mjerila hrapavost površine. Zbog izazova koje predstavlja nevodljivost i malena hrapavost površine, SEM mjerenje je provedeno s niskim ubrzavajućim naponom na obloženim uzorcima. Primijećeno je znatno povećanje hrapavosti nakon obrade mlazom plazme te su nanočestice uspješno izmjerene. Uzorci obogaćeni koloidima su pokazali određenu antibakterijsku efikasnost. Daljnja istraživanja trebala bi se usmjeriti na poboljšanje antibakterijskog učinka i njegovog protokola testiranja.
Keywords
Keywords (croatian)
Languageenglish
URN:NBNurn:nbn:hr:166:819456
Study programmeTitle: Physics; specializations in: major in teaching, major in Astrophysics, major in Biophysics, major in Enviromental physics, major in Computational physics, major in Astrophysics and physics of elemental particles
Course: major in Biophysics
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-01-17 10:17:23