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Inhibition of Fungal Growth Using Modified TiO2 with Core@Shell Structure of Ag@CuO Clusters

dc.contributor.authorMéndez Medrano, María Guadalupe
dc.contributor.authorKowalska, Ewa
dc.contributor.authorEndo Kimura, Maya
dc.contributor.authorWang, Kunlei
dc.contributor.authorOhtani, Bunsho
dc.contributor.authorBahena Uribe, Daniel
dc.contributor.authorRodríguez López, José Luis
dc.contributor.authorRemita, Hynd
dc.identifier.citationACS Appl. Bio Mater. 2019, 2, 12, 5626-5633
dc.description.abstract"The photocatalytic disinfection (PCD) properties of TiO2 have attracted attention in the research communities because the produced reactive oxygen species (ROS) allow destruction of different types of microbes, such as fungi, bacteria, viruses, algae, unicellular organisms, etc. on surfaces, in water, and in air. However, TiO2 requires UV irradiation to produce the ROS, which limits its photoactivity in indoor environments. Surface-modified TiO2 with small Ag and CuO nanoclusters in a core–shell structure exhibits antifungal properties under dark and visible conditions, possibly because of the interaction between Ag–CuO nanoclusters in the fungi membrane and their penetration, and the co-presence of Cu2+ and Ag+ ions. Therefore, a synergetic effect is obtained with co-modification of TiO2 with silver and copper, and the sample Ag@CuO/TiO2 (core–shell structure of Ag–Cu in a ratio of 1:3) exhibits the highest antifungal activity; that is, fungi growth inhibition is observed for Aspergillus melleus and Penicillium chrysogenum. Moreover, significant inhibitions of the sporulation and generation of droplets, possibly containing mycotoxins and sclerotia under dark and visible exposure, are also obtained."
dc.publisherAmerican Chemical Society
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.subjectPhotocatalytic disinfection
dc.subjectAntifungal properties
dc.subjectAspergillus melleus
dc.subjectPenicillium chrysogenum
dc.titleInhibition of Fungal Growth Using Modified TiO2 with Core@Shell Structure of Ag@CuO Clusters
dc.rights.accessAcceso Abierto

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional