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Adhezija bakterij na izbrane lesne premaze
ID Kekec, David (Author), ID Petrič, Marko (Mentor) More about this mentor... This link opens in a new window, ID Bohinc, Klemen (Comentor)

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Abstract
Bakterijska adhezija na površinah in pozneje nastanek biofilma predstavljata glavni vzrok kroničnih okužb z negativnim vplivom na zdravje ljudi. S tem problemom se srečujemo tudi pri izbiri in izdelavi pohištva, kjer stremimo k razvoju izdelkov s takšnimi površinami, na katere naj se bakterije ali drugi mikroorganizmi praviloma ne bi oprijemali. Predmet naše raziskave je bil testirati izbrana premazna sredstva za les (laneno olje, vodna lazura, nitrocelulozni lak, nanopremaz) na adhezijo bakterij vrste Pseudomonas aeruginosa, kjer smo kot testno površino uporabili vezano bukovo ploščo. Topografijo testne površine in število oprijetih bakterij P. aeruginosa smo opazovali s SEM. Na podlagi kvantitativne analize SEM slik smo določili število oprijetih bakterij z obkroževanjem le-teh. Preliminarne rezultate smo predstavili v obliki posnetkov SEM. Rezultati nakazujejo, da se je največje število bakterij oprijelo na površini, premazani z lanenim oljem. Ugotovili smo, da lahko s SEM mikroskopom ob ustrezni metodologiji dela opazujemo adhezijo bakterij na lesenih površinah. Za potrditev in pridobitev relevantnih rezultatov bodo v prihodnosti potrebne obširnejše in bolj poglobljene študije.

Language:Slovenian
Keywords:vezana bukova plošča, adhezija bakterij, Pseudomonas aeruginosa, lesni premazi
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Publisher:[D. Kekec]
Year:2019
PID:20.500.12556/RUL-108761 This link opens in a new window
UDC:630*829:832.282
COBISS.SI-ID:3084425 This link opens in a new window
Publication date in RUL:20.07.2019
Views:1815
Downloads:240
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Secondary language

Language:English
Title:Bacterial adhesion to selected wood finishes
Abstract:
Bacterial adhesion to surfaces and subsequent biofilm formation are the main causes of chronic infections with a negative impact to the human health, and this is a problem in the process of manufacturing furniture. We this aimed to develop antibacterial surfaces to which the microorganisms do not adhere. The focus of our research was to test selected wood coatings (linseed oil, water-borne stain, nitrocellulose varnish, nano-coating) with regard to the adhesion of Pseudomonas aeruginosa, where we used a beech plywood as the test surface. The topography of the test surface and number of adhering bacteria were observed on SEM micrographs. The number of adhering bacteria was determined using quantitative analysis of the SEM images. Preliminary results were presented in the form of SEM recordings. The results indicate that the maximum number of bacteria adhered to the surface coated with linseed oil. We found that by using an SEM microscope, and the appropriate methodology of work, we can observe the adhesion of bacteria on wooden surfaces. In the future, extensive and in-depth studies will be needed to confirm and obtain the relevant results.

Keywords:plywood, beech, bacterial adhesion, Pseudomonas aeruginosa, wood finishes

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