Synthesis and characterization of nickel oxide nanoparticles using Clitoria ternatea flower extract: Photocatalytic dye degradation under sunlight and antibacterial activity applications

Prabhu, Subbaiah Muthu; Thangadurai, T. Daniel; Bharathy, P. Vijai; Kalugasalam, P.

doi:10.1016/j.rechem.2022.100285

Cited by 53 publications

(11 citation statements)

References 34 publications

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“…The organic foods particularly fruits, vegetables, fish, meat, poultry, and fresh cereal-based products are largely affected by the microbial spoilage (i.e. the degradative reactions performed by bacteria, fungi and algal strains 1 . The onset of the food spoilage is remarked by the pronounced variation observed in the texture, taste, color, and odour of the food.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Alam

BaQais

Mir

et al. 2023

Sci Rep

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Novel molybdenum (Mo)-doped nickel oxide (NiO) Nanoparticles (NPs) were synthesized by using a simple sonochemical methodology and the synthesized NPs were investigated for antioxidant, and antibacterial applications. The X-ray diffraction (XRD) analysis revealed that the crystal systems of rhombohedral (21.34 nm) and monoclinic (17.76 nm) were observed for pure NiO and Mo-doped NiO NPs respectively. The scanning electron microscopy (SEM) results show that the pure NiO NPs possess irregular spherical shape with an average particle size of 93.89 nm while the Mo-doped NiO NPs exhibit spherical morphology with an average particle size of 85.48 nm. The ultraviolet–visible (UV–Vis) spectrum further indicated that the pure and Mo-doped NiO NPs exhibited strong absorption band at the wavelengths of 365 and 349 nm, respectively. The free radical scavenging activity of NiO and Mo-doped NiO NPs was also investigated by utilizing several biochemical assays. The Mo-doped NiO NPs showed better antioxidant activity (84.2%) towards ABTS. + at 200 µg/mL in comparison to their pure counterpart which confirmed that not only antioxidant potency of the doped NPs was better than pure NPs but this efficacy was also concentration dependant as well. The NiO and Mo-doped NiO NPs were further evaluated for their antibacterial activity against gram-positive (Staphylococcus aureus and Bacillus subtilis) and gram-negative (Pseudomonas aeruginosa and Escherichia coli) bacterial strains. The Mo-doped NiO NPs displayed better antibacterial activity (25 mm) against E. coli in comparison to the pure NPs. The synthesized NPs exhibited excellent aptitude for multi-dimensional applications.

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Section: Introductionmentioning

confidence: 99%

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Alam

BaQais

Mir

et al. 2023

Sci Rep

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“…It takes a long time to make nanoparticles with help from microorganisms, and it often makes things that aren't supposed to be there. As a way to get around the above problem and make synthesis easier and more ecofriendly, most of the researchers used plant mediate (plant extracts from leafy peels, flowers, fruit, and roots) [8][9][10][11]. This could be called green synthesis or 'eco-friendly synthesis.'…”

Section: Introductionmentioning

confidence: 99%

Green method for synthesis and characterization of copper oxide nanoparticles using Mulberry plant extract and their antibacterial, antioxidant and photocatalytic activity

Shkir¹

2022

Phys. Scr.

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The green synthesis of metal oxide nanoparticles is treated to be an eco-friendly path and cost-effectiveness. Mulberry plant extract was used to synthesize CuO nanoparticles in this study. UV spectroscopy absorbance at 370 nm was used to analyze the resulting synthesized nanoparticles. The distribution of nanoparticles and particle sizes were discovered to be in the range of 40-60 nm using scanning electron microscopy. Copper nanoparticles have characteristic diffraction peaks in the X-ray diffraction spectrum at 38.81°, and 66.35° which correspond to lattice planes (111) and (202), respectively. The antioxidant and antibacterial activity of the CuO nanoparticles was tested against gram-positive and gram-negative microorganisms. The results support the hypothesis that green synthesized CuO NPs could be a viable treatment option for diseases caused by microbial pathogens. This fact-finding result is that Mulberry plant extract-based green synthesized CuO nanoparticles destroyed or considerably inhibited pathogen activity, as well as having high antioxidant activity.

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“…For example, the microwave-assisted, thermal decomposition, and solvothermal synthesis techniques offer some control over particle dispersity, but require the energy-intensive use of high temperatures and pressures, where-as biological approaches occur at room-temperature and pressure. Several biogenic syntheses for MoNPs have been shown with a variety of plant extracts; however, the active compounds and mechanisms remain largely unknown. − For the purpose of this review, we will only discuss cases where-in an active component has been identified and the mechanism is at least partially understood (examples shown in Table ).…”

Section: Functional Materials Produced Using Biomineralizationmentioning

confidence: 99%

Understanding Biomineralization Mechanisms to Produce Size-Controlled, Tailored Nanocrystals for Optoelectronic and Catalytic Applications: A Review

Vigil,

Spangler

2024

ACS Appl. Nano Mater.

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Biomineralization, the use of biological systems to produce inorganic materials, has recently become an attractive approach for the sustainable manufacturing of functional nanomaterials. Relying on proteins or other biomolecules, biomineralization occurs under ambient temperatures and pressures, which presents an easily scalable, economical, and environmentally friendly method for nanoparticle synthesis. Biomineralized nanocrystals are quickly approaching a quality applicable for catalytic and optoelectronic applications, replacing materials synthesized using expensive traditional routes. Here, we review the current state of development for producing functional nanocrystals using biomineralization and distill the wide variety of biosynthetic pathways into two main approaches: templating and catalysis. Throughout, we compare and contrast biomineralization and traditional syntheses, highlighting optimizations from traditional syntheses that can be implemented to improve biomineralized nanocrystal properties such as size and morphology, making them competitive with chemically synthesized state-of-the-art functional nanomaterials.

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Synthesis and characterization of nickel oxide nanoparticles using Clitoria ternatea flower extract: Photocatalytic dye degradation under sunlight and antibacterial activity applications

Cited by 53 publications

References 34 publications

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Effect of Mo doping in NiO nanoparticles for structural modification and its efficiency for antioxidant, antibacterial applications

Green method for synthesis and characterization of copper oxide nanoparticles using Mulberry plant extract and their antibacterial, antioxidant and photocatalytic activity

Understanding Biomineralization Mechanisms to Produce Size-Controlled, Tailored Nanocrystals for Optoelectronic and Catalytic Applications: A Review

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