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                <title xml:lang="en">Evaluation of Antibacterial and Antioxidant Activities of Silver‐Decorated TiO 2 Nanoparticles</title>
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                <term xml:lang="en">Antioxidants</term>
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              <p>Abstract Silver nanoparticles (AgNPs) at different amounts have successfully been deposited, by simple impregnation on the titanium dioxide (TiO 2 ) developed by the hydrothermal method. A textural and structural study of prepared materials was conducted using different analysis techniques, namely X‐Ray Diffraction (XRD), Diffuse Reflectance UV‐Vis (DR/UV‐Vis) spectroscopy, Fourier Transform Infrared (FTIR) spectroscopy, in addition to the Brunauer–Emmett–Teller (BET) method. The nanostructured prepared materials were tested for their antibacterial activity on four strains, i. e. two Gram‐negative (G−) bacteria, namely Escherichia coli ATCC 8739 and A. baumanni ATCC 19606, and two Gram positive (G+) bacteria, i. e. S.aureus ATCC 6538 and E.cloacae ATCC 13047. The antioxidant effect was also tested on the reference radical DPPH° (2,2‐diphenyl‐1‐picrylhydrazyle). AgNPs supported on TiO2 showed good antibacterial activity against the four selected strains. In addition, the minimum inhibitory concentration (MIC) was observed in the case of the low‐grade silver‐doped catalyst (0.1 % Ag/TiO2). Differently from the antibacterial activity, the antioxidant effect of the prepared materials was found to be pronounced in the cases of materials with high silver contents for which there was degradation of the radical in comparison with the one of the reference acid.</p>
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