title: The influence of particle size and AgNO3 concentration in the ionic exchange process on the fungicidal action of antimicrobial glass.
abstract: Antimicrobial materials have long been used as an effective means of reducing the risks posed to humans by fungi, bacteria and other microorganisms. These materials are essential in environments where cleanliness, comfort and hygiene are the predominate concerns. This work presents preliminary results for the development of a fungicidal vitreous material that is produced by the incorporation of a silver ionic specimen through ionic exchange reactions. Silver ions were incorporated into powdered glass via ionic exchange in an ionic medium containing silver species with different concentrations of AgNO3. The fungicidal efficiency of the samples was studied as a function of the AgNO3 concentration and the particle size of the glass using the agar diffusion test for the microbiological analysis of the fungus species Candida albicans. The samples were examined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The experimental results showed that the fungicidal effect was dependent on the AgNO3 concentration in the ionic exchange medium but was not dependent on the particle size of the glass.
authors.affiliation: Programa de Pós-Graduação em Engenharia Química Universidade Federal de Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brasil.
authors.forename: E
authors.initials: E
authors.lastname: Mendes
authors.affiliation: Programa de Pós-Graduação em Engenharia Química Universidade Federal de Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brasil.
authors.forename: R
authors.initials: R
authors.lastname: Piletti
authors.affiliation: Programa de Pós-Graduação em Ciências da Sáude, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Santa Catarina, Brasil.
authors.forename: T
authors.initials: T
authors.lastname: Barichello
authors.affiliation: Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Santa Catarina, Brasil.
authors.forename: C M
authors.initials: CM
authors.lastname: Oliveira
authors.affiliation: Programa de Mestrado Profissional em Administração - Gestão de Projetos, Universidade Nove de Julho, São Paulo, São Paulo, Brasil.
authors.forename: C T
authors.initials: CT
authors.lastname: Kniess
authors.affiliation: Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Santa Catarina, Brasil.
authors.forename: E
authors.initials: E
authors.lastname: Angioletto
authors.affiliation: Programa de Pós-Graduação em Engenharia Química Universidade Federal de Santa Catarina - UFSC, Florianópolis, Santa Catarina, Brasil.
authors.forename: H G
authors.initials: HG
authors.lastname: Riella
authors.affiliation: Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense - UNESC, Criciúma, Santa Catarina, Brasil.
authors.forename: M A
authors.initials: MA
authors.lastname: Fiori
mesh_terms: D000935:Antifungal Agents / Q000737:chemistry* / Q000494:pharmacology*; D002176:Candida albicans / Q000187:drug effects*; D005898:Glass / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning / Q000379:methods; D010316:Particle Size; D011208:Powders / Q000737:chemistry; D012834:Silver / Q000737:chemistry* / Q000494:pharmacology*; D014961:X-Ray Diffraction / Q000379:methods
chemical_list: D000935:Antifungal Agents; D011208:Powders; D012834:Silver