Biomaterial-centered infection is a dreaded complication associated with the use of biomedical implants. In this paper, the antimicrobial activity of silicone rubber with a covalently coupled 3-(trimethoxysilyl)-propyldimethyloctadecylammonium chloride (QAS) coating was studied in vitro and in vivo. Gram-positive Staphylococcus aureus ATCC 12600, Staphylococcus epidermidis HBH, 102, and Gram-ne...

Chitosan is a biopolymer that is being increasingly used in distinct areas such as pharmaceutical, biomedical, cosmetics, food industry and agriculture. Among the interesting biological activities that have been ascribed to chitosan, the antimicrobial activity is probably the one that generates the higher number of applications. Considering that feet present favorable conditions for microorgani...

Background and study aims: Biliary stent dysfunction is mainly caused by biliary sludge that forms as a result of bacterial adherence and subsequent biofilm formation on the inner surface of the stent. Silver ions arewell known to have excellent antimicrobial activity against a wide range of microorganisms. In this study, we designed and constructed silver-coated plastic stent (PS) and investig...

Poultry meat is one of the perishable foods. The growth of pathogenic microorganisms may occur in chicken meat during refrigerated storage. Microbial growth causes serious hazard in food safety consumer. The aim of this study was to compare antimicrobial properties of Thymus vulgaris (TEO) and Zataria multiflora essential oil (ZEO) and the effect of carboxymethyl cellulose (CMC) films containin...

The present work assesses the efficacy of whey protein edible coatings with antimicrobial properties applied to ripened cheese as alternatives to commercial cheese coatings. Whey protein edible coatings were produced from ovine whey protein concentrate (WPC) with lactic acid and natamycin as antimicrobials. Two methods of coating polymerization were performed separately and in combination; the ...

The photocatalytic effect of TiO2 has great potential for the disinfection of surfaces. Most studies reported in the literature use UV activation of TiO₂, while visible light has been used only in a few applications. In these studies, high concentrations of TiO₂, which can compromise surface properties, have been used. In this work, we have developed an acrylic-water paint dispersion containing...

Fruit and vegetable containers with microbe-free surfaces can be made by coating with titanium dioxide (TiO2) particles or nonmetal (C, N, B, F) doped-TiO2 particles, using wear resistant polymers, such as zein, and paint, as the binders and to form a continuous binding phase. The doped-TiO2 powders absorb visible light radiation, and thus possess a higher antibacterial effect than non-modified...

Sara Nganga. Development of porous glass-fiber reinforced composite for bone implants. Evaluation of antimicrobial effect and implant fixation. Department of Biomaterials Science, Institute of Dentistry, University of Turku. Annales Universitas Turkuensis, Turku, Finland, 2013. Cranial bone reconstructions are necessary for correcting large skull bone defects due to trauma, tumors, infections a...

DEDICATION To my parents, thank you for always encouraging me to explore the world. v ACKNOWLEDGEMENTS I would to thank my advisor, Julie M. Goddard, for her guidance and support throughout my degree. Thanks are also due to the entire Bioengineering group, especially Luis Bastarrachea for his mentorship and advice. I would also like to extend my gratitude to my committee members, Amanda Kinchla...