title: Glass-(nAg, nCu) biocide coatings on ceramic oxide substrates.
abstract: The present work was focused on obtaining biocide coatings constituted by a glassy soda-lime matrix containing silver or copper nanoparticles on ceramic (alumina and zirconia based) substrates. Both glassy coatings showed a high biocide activity against Gram-, Gram+ bacteria and yeast, reducing cell numbers more than three logarithms. Silver nanoparticles had a significantly higher biocide activity than copper nanoparticles, since the lixiviation levels required to reduce cell numbers more than 3 logarithms was of almost 1-2 µg/cm(2) in the case of silver nanoparticles, and 10-15 µg/cm(2) for the copper nanoparticles.
authors.affiliation: Department of Biomaterials and Bioinspired Materials, Materials Science Institute of Madrid (ICMM-CSIC), Cantoblanco, Madrid, Spain.
authors.forename: Leticia
authors.initials: L
authors.lastname: Esteban-Tejeda
authors.forename: Francisco
authors.initials: F
authors.lastname: Malpartida
authors.forename: Luis Antonio
authors.initials: LA
authors.lastname: Díaz
authors.forename: Ramón
authors.initials: R
authors.lastname: Torrecillas
authors.forename: Fernando
authors.initials: F
authors.lastname: Rojo
authors.forename: José Serafín
authors.initials: JS
authors.lastname: Moya
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry; D017610:Calcium Compounds; D002452:Cell Count; D002516:Ceramics / Q000737:chemistry*; D004202:Disinfectants / Q000737:chemistry* / Q000633:toxicity; D004926:Escherichia coli / Q000187:drug effects; D053768:Metal Nanoparticles / Q000633:toxicity*; D016982:Micrococcus luteus / Q000187:drug effects; D008854:Microscopy, Electron; D010087:Oxides / Q000737:chemistry*; D004718:Saccharomycetales / Q000187:drug effects; D012972:Sodium Hydroxide; D020349:Surface Plasmon Resonance; D015040:Zirconium / Q000737:chemistry
chemical_list: D017610:Calcium Compounds; D004202:Disinfectants; D010087:Oxides; C004569:soda lime; D012972:Sodium Hydroxide; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide