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Ultrasound-assisted biosynthesis of CuO-NPs using brown alga Cystoseira trinodis: Characterization, photocatalytic AOP, DPPH scavenging and antibacterial investigations

Gu, Haidong ; Chen, Xiao ; Chen, Feng ; Zhou, Xing ; Parsaee, Zohreh

Ultrasonics sonochemistry, 2018-03, Vol.41, p.109-119 [Periódico revisado por pares]

Netherlands: Elsevier B.V

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Título:
Ultrasound-assisted biosynthesis of CuO-NPs using brown alga Cystoseira trinodis: Characterization, photocatalytic AOP, DPPH scavenging and antibacterial investigations
Autor: Gu, Haidong ; Chen, Xiao ; Chen, Feng ; Zhou, Xing ; Parsaee, Zohreh
Assuntos: Anti-Bacterial Agents - chemical synthesis ; Anti-Bacterial Agents - chemistry ; Anti-Bacterial Agents - pharmacology ; AOP ; Bacteria - drug effects ; Biphenyl Compounds - chemistry ; Catalysis ; Chemistry Techniques, Synthetic ; Copper - chemistry ; Copper - pharmacology ; CuO NPs ; Cystoseira trinodis ; DPPH ; Free Radical Scavengers - chemical synthesis ; Free Radical Scavengers - chemistry ; Free Radical Scavengers - pharmacology ; Green method ; Microbial Sensitivity Tests ; Nanoparticles - chemistry ; Oxidation-Reduction ; Phaeophyceae - chemistry ; Photocatalytic activity ; Photochemical Processes ; Picrates - chemistry ; Plant Extracts - chemistry ; Ultrasonic Waves ; Ultrasound biosynthesis
É parte de: Ultrasonics sonochemistry, 2018-03, Vol.41, p.109-119
Descrição: •Green, facial and rapid Biosynthesis of CuO NPs via ultrasound method using Cystoseira trinodis extracts for first time.•Production of the spherical CuO NPs (6–7.8nm) and antibacterial and DPPH scavenging evolution.•CuO NPs with high efficiency (98%) photocatalytic activity for the degradation of methylene blue at pH=4. This contribution reports the biosynthesis of CuO NPs via ultrasound method using the Cystoseira trinodis extracts as an eco friendly and time saving process. The characterization of cupric oxide NPs was performed using XRD, FE-SEM, EDX, TEM, AFM, photoluminescence, UV–Vis, Raman and FT-IR spectroscopy investigations. SEM images show the spherical structure with the average crystallite size 6nm to 7.8nm of CuO. XRD analysis approved the formation of pure monoclinic crystallite structures of CuO NPs. These observations were confirmed by TEM analysis. The photocatalytic studies reveal the activity of the prepared CuO NPs as an efficient catalyst for the degradation of methylene blue (MB) in the presence of UV and Sunlight. CuO NPs under varying experimental parameters such as dye concentration, catalytic load, pH. The results of the in vitro biological screening effect of CuO NPs (zone of growth inhibition and minimal inhibitory concentrations) in comparison with cephalexin (as a standard compound) using the disc diffusion method was demonstrated the significant bactericidal activity against some bacteria strain including Escherichia coli (E. coli), Enterococcus faecalis (E. faecalis), Salmonella typhimurium (S. typhimurium), Staphylococcus aureus (S. aureus), Bacillus subtilis (B. subtilis), and Streptococcus faecalis (S. faecalis). Furthermore, the Nps found to inhibit the activity of 1,1-Diphenyl-2-picrylhydrazyl (DPPH) free radicals effectively. This study introduces a facile, green and low coast method for the synthesis of monoclinic CuO NPs with catalytic, antioxidant and antibacterial properties.
Editor: Netherlands: Elsevier B.V
Idioma: Inglês

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Ultrasound-assisted biosynthesis of CuO-NPs using brown alga Cystoseira trinodis: Characterization, photocatalytic AOP, DPPH scavenging and antibacterial investigations

Gu, Haidong ; Chen, Xiao ; Chen, Feng ; Zhou, Xing ; Parsaee, Zohreh

Netherlands: Elsevier B.V

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