Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces
Abstract In the construction sector, diverse microorganisms have the ability to form biofilms on constructed surfaces affecting the health of the inhabitants. In this sense, diverse nanomaterials of titanium oxide (TiO2), copper oxide (CuO), and CuO/TiO2 were synthesized by the sol–gel method, Pechi...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | Journal of Materials Science: Materials in Engineering |
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| Online Access: | https://doi.org/10.1186/s40712-025-00288-7 |
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| author | Z. Martínez-Corona D. S. García-Zaleta R. López-González C. García-Mendoza M. A. Alvarez-Lemus C. Encarnacion-Gomez S. A. Gómez-Cornelio |
| author_facet | Z. Martínez-Corona D. S. García-Zaleta R. López-González C. García-Mendoza M. A. Alvarez-Lemus C. Encarnacion-Gomez S. A. Gómez-Cornelio |
| author_sort | Z. Martínez-Corona |
| collection | DOAJ |
| description | Abstract In the construction sector, diverse microorganisms have the ability to form biofilms on constructed surfaces affecting the health of the inhabitants. In this sense, diverse nanomaterials of titanium oxide (TiO2), copper oxide (CuO), and CuO/TiO2 were synthesized by the sol–gel method, Pechini method, and a mechanical synthesismethod. The influence of the thermal treatment (425–575 °C) on the formation of crystalline phases in the compounds, as well as their antibacterial activity on Escherichia coli and Staphylococcus aureus was investigated. X-ray diffraction technique(XRD) results displayed the formation of anatase, rutile, and tenorite phases on the as-synthesized samples. The Rietveld refinement analysis estimated the composition of phases, as well as the crystal size for each crystalline phase in the specimens (from ~ 16 up to ~ 165 nm). The Fourier Transform Infrared (FTIR) spectroscopy showed the characteristic M–O vibrations of the TiO2 and CuO compounds. No relevant signals of the precursors were detected. RAMAN spectroscopy confirmed the formation of anatase and rutile phases in the TiO2 nanomaterials. Scanning electron microscopy (SEM) micrographs revealed the morphology of the compounds and dynamic light scattering (DLS) and electrophoretic light scattering (ELS) analysis showed the particle sizes (from ~ 225 to ~ 750 nm) with Z-potentials between − 11 mV and − 21 mV. Nitrogen adsorption/desorption isotherms results revealed pore sizes between ~ 0.2 and ~ 12.4 nm as well as surface area values up to ~ 158 m2/g. Finally, the minimum inhibitory concentration (MIC) evaluation revealed that the compounds that CuO-based compounds exhibit good antibacterial activity, with MIC values starting at 0.625 mg/mL, and the CuO/TiO2 sample at 475 °C showed the highest efficacy at 0.312 mg/mL. These results suggest that the as-synthesized compounds could be used as disinfection agents on construction surfaces and in sick buildings, as well as they could to reduce the health risks associated with exposure to bacteria. |
| format | Article |
| id | doaj-art-36abb15563c14aa892aaf9f839fd967b |
| institution | OA Journals |
| issn | 3004-8958 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Materials Science: Materials in Engineering |
| spelling | doaj-art-36abb15563c14aa892aaf9f839fd967b2025-08-20T02:39:03ZengSpringerOpenJournal of Materials Science: Materials in Engineering3004-89582025-05-0120111510.1186/s40712-025-00288-7Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfacesZ. Martínez-Corona0D. S. García-Zaleta1R. López-González2C. García-Mendoza3M. A. Alvarez-Lemus4C. Encarnacion-Gomez5S. A. Gómez-Cornelio6División Académica Multidisciplinaria de Jalpa de Méndez (UJAT-DAMJM), Universidad Juárez Autónoma de TabascoDivisión Académica Multidisciplinaria de Jalpa de Méndez (UJAT-DAMJM), Universidad Juárez Autónoma de TabascoDivisión Académica de Ingeniería y Arquitectura (UJAT-DAIA), Universidad Juárez Autónoma de TabascoDivisión Académica de Ingeniería y Arquitectura (UJAT-DAIA), Universidad Juárez Autónoma de TabascoDivisión Académica de Ingeniería y Arquitectura (UJAT-DAIA), Universidad Juárez Autónoma de TabascoDivisión Académica Multidisciplinaria de Jalpa de Méndez (UJAT-DAMJM), Universidad Juárez Autónoma de TabascoUniversidad Politécnica del Centro (UPC)Abstract In the construction sector, diverse microorganisms have the ability to form biofilms on constructed surfaces affecting the health of the inhabitants. In this sense, diverse nanomaterials of titanium oxide (TiO2), copper oxide (CuO), and CuO/TiO2 were synthesized by the sol–gel method, Pechini method, and a mechanical synthesismethod. The influence of the thermal treatment (425–575 °C) on the formation of crystalline phases in the compounds, as well as their antibacterial activity on Escherichia coli and Staphylococcus aureus was investigated. X-ray diffraction technique(XRD) results displayed the formation of anatase, rutile, and tenorite phases on the as-synthesized samples. The Rietveld refinement analysis estimated the composition of phases, as well as the crystal size for each crystalline phase in the specimens (from ~ 16 up to ~ 165 nm). The Fourier Transform Infrared (FTIR) spectroscopy showed the characteristic M–O vibrations of the TiO2 and CuO compounds. No relevant signals of the precursors were detected. RAMAN spectroscopy confirmed the formation of anatase and rutile phases in the TiO2 nanomaterials. Scanning electron microscopy (SEM) micrographs revealed the morphology of the compounds and dynamic light scattering (DLS) and electrophoretic light scattering (ELS) analysis showed the particle sizes (from ~ 225 to ~ 750 nm) with Z-potentials between − 11 mV and − 21 mV. Nitrogen adsorption/desorption isotherms results revealed pore sizes between ~ 0.2 and ~ 12.4 nm as well as surface area values up to ~ 158 m2/g. Finally, the minimum inhibitory concentration (MIC) evaluation revealed that the compounds that CuO-based compounds exhibit good antibacterial activity, with MIC values starting at 0.625 mg/mL, and the CuO/TiO2 sample at 475 °C showed the highest efficacy at 0.312 mg/mL. These results suggest that the as-synthesized compounds could be used as disinfection agents on construction surfaces and in sick buildings, as well as they could to reduce the health risks associated with exposure to bacteria.https://doi.org/10.1186/s40712-025-00288-7TiO2CuO/TiO2Constructed surfacesAntibacterial activity |
| spellingShingle | Z. Martínez-Corona D. S. García-Zaleta R. López-González C. García-Mendoza M. A. Alvarez-Lemus C. Encarnacion-Gomez S. A. Gómez-Cornelio Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces Journal of Materials Science: Materials in Engineering TiO2 CuO/TiO2 Constructed surfaces Antibacterial activity |
| title | Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces |
| title_full | Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces |
| title_fullStr | Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces |
| title_full_unstemmed | Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces |
| title_short | Antibacterial activity of TiO2, CuO, and CuO/TiO2 nanomaterials and their potential application on construction surfaces |
| title_sort | antibacterial activity of tio2 cuo and cuo tio2 nanomaterials and their potential application on construction surfaces |
| topic | TiO2 CuO/TiO2 Constructed surfaces Antibacterial activity |
| url | https://doi.org/10.1186/s40712-025-00288-7 |
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