Document
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Continuant
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Environmental Science and Technology
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type: Information Content Entity
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publication venue for: Synergistic bactericidal activity of Ag-TiO 2 nanoparticles in both light and dark conditions
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RDF description of Synergistic bactericidal activity of Ag-TiO 2 nanoparticles in both light and dark conditions - http://orbis.uaslp.mx/vivo/individual/scopus2848
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date: 2026-08-28T03:00:05
publisher: vivo
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Article
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Synergistic bactericidal activity of Ag-TiO 2 nanoparticles in both light and dark conditions
type: Entity
most specific type: Article
volume: 45
doi: 10.1021/es201675m
related by: authorship_16765
chemicalscas: silver, 7440-22-4; titanium dioxide, 1317-70-0, 1317-80-2, 13463-67-7, 51745-87-0; Silver, 7440-22-4; Titanium, 7440-32-6; titanium dioxide, 13463-67-7
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related by: authorship_16769
type: Thing
related by: authorship_16770
page end: 8995
date time value: article date 2849
abstract: High-throughput screening was employed to evaluate bactericidal activities of hybrid Ag-TiO 2 nanoparticles comprising variations in TiO 2 crystalline phase, Ag content, and synthesis method. Hybrid Ag-TiO 2 nanoparticles were prepared by either wet-impregnation or UV photo deposition onto both Degussa P25 and DuPont R902 TiO 2 nanoparticles. The presence of Ag was confirmed by ICP, TEM, and XRD analysis. The size of Ag nanoparticles formed on anatase/rutile P25 TiO 2 nanoparticles was smaller than those formed on pure rutile R902. When activated by UV light, all hybrid Ag-TiO 2 nanoparticles exhibited stronger bactericidal activity than UV alone, Ag/UV, or UV/TiO 2. For experiments conducted in the dark, bactericidal activity of Ag-TiO 2nanoparticles was greater than either bare TiO 2 (inert) or pure Ag nanoparticles, suggesting that the hybrid materials produced a synergistic antibacterial effect unrelated to photoactivity. Moreover, less Ag dissolved from Ag-TiO 2 nanoparticles than from Ag nanoparticles, indicating the antibacterial activities of Ag-TiO 2 was not only caused by releasing of toxic metal ions. It is clear that nanotechnology can produce more effective bactericides; however, the challenge remains to identify practical ways to take advantage of these exciting new material properties. © 2011 American Chemical Society.
most specific type: Document
related by: authorship_16767
crisid: 2849
pmid: 21866941
abstract: High-throughput screening was employed to evaluate bactericidal activities of hybrid Ag-TiO 2 nanoparticles comprising variations in TiO 2 crystalline phase, Ag content, and synthesis method. Hybrid Ag-TiO 2 nanoparticles were prepared by either wet-impregnation or UV photo deposition onto both Degussa P25 and DuPont R902 TiO 2 nanoparticles. The presence of Ag was confirmed by ICP, TEM, and XRD analysis. The size of Ag nanoparticles formed on anatase/rutile P25 TiO 2 nanoparticles was smaller than those formed on pure rutile R902. When activated by UV light, all hybrid Ag-TiO 2 nanoparticles exhibited stronger bactericidal activity than UV alone, Ag/UV, or UV/TiO 2. For experiments conducted in the dark, bactericidal activity of Ag-TiO 2nanoparticles was greater than either bare TiO 2 (inert) or pure Ag nanoparticles, suggesting that the hybrid materials produced a synergistic antibacterial effect unrelated to photoactivity. Moreover, less Ag %2b dissolved from Ag-TiO 2 nanoparticles than from Ag nanoparticles, indicating the antibacterial activities of Ag-TiO 2 was not only caused by releasing of toxic metal ions. It is clear that nanotechnology can produce more effective bactericides; however, the challenge remains to identify practical ways to take advantage of these exciting new material properties. © 2011 American Chemical Society.
related by: authorship_16764
type: Document
has publication venue: Environmental Science and Technology
related by: authorship_16768
type: Information Content Entity
related by: authorship_16766
page start: 8989
related by: authorship_16763
type: Generically Dependent Continuant
issue: 20
type: Article
e iscopus: 2-s2.0-80054714900
origen: scopus
freetext keyword: Ag nanoparticle; Anti-bacterial activity; Antibacterial effects; Bactericidal activity; Crystalline phase; Dark conditions; Degussa P25; High-throughput screening; Material property; Photo-deposition; Photoactivity; Synthesis method; TiO; Toxic metal ions; Wet-impregnation; XRD analysis; Bactericides; Hybrid materials; Metal ions; Nanoparticles; Oxide minerals; Titanium dioxide; Silver; metal ion; silver; silver nanoparticle; titanium dioxide; microbial activity; nanotechnology; photochemistry; rutile; silver; synergism; titanium; toxic material; transmission electron microscopy; ultraviolet radiation; X-ray diffraction; article; bactericidal activity; silver impregnation; transmission electron microscopy; ultraviolet radiation; X ray diffraction; Darkness; Light; Nanoparticles; Silver; Titanium
estado: published

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