Browsing by Author "Plaza Velasco, Natalia"
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Item Estudio morfológico, estructural y microbiológico de películas delgadas de Ti-Ag para implantes dentales(Universidad Santiago de Cali, 2023) Plaza Velasco, Natalia; Ramírez Calero, María Camila; Acosta, Franklin Bermeo; Garcés Constaín, Paula AndreaThe search for materials to produce dental implants has been of great interest in the fields of medicine, chemistry and biology. Generally, implants have complications due to bacterial infections or incompatibility with the human body, therefore titanium and silver stand out with great relevance due to their great capacities for harmlessness and coupling with the human body. The results of this study contributed to the investigation of what the ideal thicknesses of titanium and silver could be for the manufacture of thin films in order to make dental implants with greater antimicrobial activity. The films were structurally characterized, confirming the presence of Silver and Titanium; morphologically the roughness was characterized; The surface energy was characterized, the wettability analysis revealed that the contact angles were less than 90º, which corresponds to hydrophilic surfaces.. On the other hand, the antimicrobial activity was evaluated against Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans where the results obtained demonstrated that Ti/Ag thin films with Ti thicknesses of 180nm and 360nm have promising antimicrobial properties for dental coatings, inhibiting the adhesion of biofilms in P. aeruginosa (100%), S. aureus (100% and 96%) and C. albicans (80% and 90%) respectively, these responses are related to roughness and reflect different responses for bacteria and yeast