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• W3128776347 endingPage "111934" @default.
• W3128776347 startingPage "111934" @default.
• W3128776347 abstract "In the present study, graphite oxide, graphite oxide doped with 0.8 g AgNO 3 named GrO-0.5Ag, and graphite oxide doped with 1.25 g AgNO 3 named GrO-1.0Ag (silver-doped graphitic materials) were synthesized by the modified Hummers and chemical doping methods. Subsequently, its antimicrobial activity against Bacillus subtilis , Candida albicans , Escherichia coli , and Staphylococcus aureus microorganisms was evaluated by agar well diffusion test with 1 and 2 mg·ml −1 of material concentrations. The silver-doped graphitic materials were characterized by X-Ray Diffraction, Fourier-Transform Infrared, Raman, X-Ray Photoelectron spectroscopies, and Scanning Electron Microscopy. The GrO-0.5Ag material showed a percentage of inhibition effect of 86, 82, 48, and 45% with respect to the positive control for Staphylococcus aureus , Bacillus subtilis , Escherichia coli , and Candida albicans microorganisms, respectively. Otherwise, the GrO-1.0Ag material showed a percentage of inhibition effect of 54% with respect to the positive control for Bacillus subtilis and less than 50% for the other microorganisms. The material concentrations showed a slight change in the percentage of inhibition effect for all microorganisms. Graphite oxide functional groups, small crystal size, free silver ions, and silver carbonate formation in silver-doped graphitic materials presented a viable alternative to inhibit bacterial growth. • The amount of silver changed the microstructure and functional groups of graphite oxide • Low silver concentration exhibited a high dispersion of metal ions along the graphite oxide surface • GrO-0.5Ag material presented the same non-lattice and lattice oxygen amount • Electron mobility, synergy between functional groups and silver carbonate formation enhanced the antimicrobial activity • GrO-0.5Ag showed a high percentage of inhibition effect in the following order: S. aureus > B. subtilis > E. coli > C. albicans" @default.
• W3128776347 created "2021-02-15" @default.
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• W3128776347 date "2021-04-01" @default.
• W3128776347 modified "2023-09-30" @default.
• W3128776347 title "Antimicrobial activity of graphite oxide doped with silver against Bacillus subtilis, Candida albicans, Escherichia coli, and Staphylococcus aureus by agar well diffusion test: Synthesis and characterization" @default.
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• W3128776347 doi "https://doi.org/10.1016/j.msec.2021.111934" @default.
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