Na-TiNT Nanocrystals: Synthesis, Characterization, and Antibacterial Properties.

Autor: Agressott EVH; Department of Physics, Federal University of Ceará (UFC), Pici Campus, Fortaleza-CE 60440-970, Brazil., Oliveira MM; Departament of Biological Chemistry, Laboratory of Simulations and Molecular Spectroscopy - LASEMOL, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Freitas TS; Departament of Biological Chemistry, Laboratory of Simulations and Molecular Spectroscopy - LASEMOL, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Pereira RLS; Departament of Biological Chemistry, Laboratory of Simulations and Molecular Spectroscopy - LASEMOL, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Silva ARP; Departament of Biological Chemistry, Laboratory of Microbiology and Molecular Biology - LMBM, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Cruz RP; Departament of Biological Chemistry, Laboratory of Microbiology and Molecular Biology - LMBM, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Santos ATL; Departament of Biological Chemistry, Laboratory of Applied Micology of Cariri - LMAC, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Teixeira AMR; Departament of Biological Chemistry, Laboratory of Simulations and Molecular Spectroscopy - LASEMOL, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil., Oliveira TG; Departament of Physics, Federal University of Piauí, CEP 64049-550, Teresina, PI, Brazil., da Silva JH; Center os Science and Technology -CCT, Federal Universiy of Cariri, CEP 63048-080, Juazeiro do Norte, CE, Brazil., Paschoal AR; Department of Physics, Federal University of Ceará (UFC), Pici Campus, Fortaleza-CE 60440-970, Brazil., Viana BC; Interdisciplinary Laboratory for Advanced Materials- LIMAV, Materials Science & Engineering Graduate Program, Federal University of Piauí, UFPI, CEP 64049-550, Teresina, PI, Brazil., Freire PTC; Department of Physics, Federal University of Ceará (UFC), Pici Campus, Fortaleza-CE 60440-970, Brazil., Siyadatpanah A; Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran., Wilairatana P; Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand., Coutinho HDM; Departament of Biological Chemistry, Laboratory of Microbiology and Molecular Biology - LMBM, Regional University of Cariri, CEP 63105-000, Crato, CE, Brazil.
Jazyk: angličtina
Zdroj: Bioinorganic chemistry and applications [Bioinorg Chem Appl] 2022 Jan 30; Vol. 2022, pp. 2302943. Date of Electronic Publication: 2022 Jan 30 (Print Publication: 2022).
DOI: 10.1155/2022/2302943
Abstrakt: Titanium nanotubes have attractive morphological and physicochemical properties for several applications, such as high surface area, mesoporous structure, good stability, ion exchange capacity, and antibacterial property. Therefore, the field of nanotube applications is increasingly expanding, such as in solar cells sensitized by dye, photocatalysis, and antibacterial activity, among others. Therefore, a study of the antibacterial properties of sodium titanate nanotubes (Na-TiNTs) was carried out together with physicochemical characterizations, such as Raman spectroscopy which shows a peak characteristic of Na-O-Ti from nanotube-agglomerated regions. The XRD diffractogram confirmed the Raman spectra and evidenced the crystalline structure associated to Na-TiNT, which showed the characteristic peaks of the sodium trititanate crystal. SEM and TEM images showed the morphology of hollow nanotubes and forming semispherical particles. EDS shows the percentage values of each of the compounds in the Na-TiNT. The bacterial activity of the Na-TiNT was analyzed in Escherichia coli , Staphylococcus aureus , and Pseudomonas aeruginosa . Na-TiNT modified the activity of the gentamicin and norfloxacin antibiotics against multiresistant strains. Synergistic effects against Gram-positive S. aureus 10 and Gram-negative P. aeruginosa 15 bacteria were observed when the Na-TiNT was associated with gentamicin, reducing the concentration of this antibiotic that is required to inhibit bacterial growth. Another synergic effect was observed for S. aureus 10 with norfloxacin.
Competing Interests: The authors declare that there are no conflicts of interest.
(Copyright © 2022 Enzo V. H. Agressott et al.)
Databáze: MEDLINE
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