Facile green synthesis of silver oxide nanoparticles and their electrochemical, photocatalytic and biological studies

Rashmi, B.N.; Harlapur, Sujata F.; Avinash, B.; Ravikumar, C.R.; Nagaswarupa, H.P.; Kumar, Manjeet; Gurushantha, K.; Santosh, M.S.

doi:10.1016/j.inoche.2019.107580

Cited by 130 publications

(36 citation statements)

References 30 publications

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“…Antimicrobial application is primarily due to their ultra-small size and shape (250 times smaller than bacteria), enabling an electrostatic interaction between the Au or Ag from the NPs, and the negative charge on the cell wall or surface of microorganisms, resulting in a distortion of membrane’s power functions, such as permeability, osmoregulation, electron transport, and respiration, leading them towards cellular death. The previous depends also on surface availability; thus, smaller NPs will present greater bactericidal effect by binding with the large surface area of the bacteria’s cell membrane [ 119 , 120 , 121 ].…”

Section: Aunps and Agnps Applications In Agriculturementioning

confidence: 99%

Green Synthesis of Gold and Silver Nanoparticles from Plant Extracts and Their Possible Applications as Antimicrobial Agents in the Agricultural Area

Henríquez¹,

et al. 2020

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Currently, metal nanoparticles have varied uses for different medical, pharmaceutical, and agricultural applications. Nanobiotechnology, combined with green chemistry, has great potential for the development of novel and necessary products that benefit human health, environment, and industries. Green chemistry has an important role due to its contribution to unconventional synthesis methods of gold and silver nanoparticles from plant extracts, which have exhibited antimicrobial potential, among other outstanding properties. Biodiversity-rich countries need to collect and convert knowledge from biological resources into processes, compounds, methods, and tools, which need to be achieved along with sustainable use and exploitation of biological diversity. Therefore, this paper describes the relevant reported green synthesis of gold and silver nanoparticles from plant extracts and their capacity as antimicrobial agents within the agricultural field for fighting against bacterial and fungal pathogens that can cause plant, waterborne, and foodborne diseases. Moreover, this work makes a brief review of nanoparticles’ contribution to water treatment and the development of “environmentally-friendly” nanofertilizers, nanopesticides, and nanoherbicides, as well as presenting the harmful effects of nanoparticles accumulation in plants and soils.

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Section: Aunps and Agnps Applications In Agriculturementioning

confidence: 99%

Green Synthesis of Gold and Silver Nanoparticles from Plant Extracts and Their Possible Applications as Antimicrobial Agents in the Agricultural Area

Henríquez¹,

et al. 2020

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“…Nanotechnology deals with different approaches to synthesize materials ranging from 1 to 100 nm, at least in one dimension, and have unique properties, such as small size, surface charge, porosity, high surface energy, and high surface area/volume (S/V) ratio, which enhance their catalytic properties and interaction with other molecules. The main reason why metal nanoparticles (MNPs) have gained the specific attention of researchers is due to their unique properties, namely particle size, shape, crystal structure, surface effect, magnetic, catalytic, optical, as well as chemical and mechanical characteristics from their bulk counterpart [1,2]. Until now, different multifunctional metals and metal-oxide nanoparticles have been synthesized [3,4].…”

Section: Introductionmentioning

confidence: 99%

Phytogenic Synthesis of Nickel Oxide Nanoparticles (NiO) Using Fresh Leaves Extract of Rhamnus triquetra (Wall.) and Investigation of Its Multiple In Vitro Biological Potentials

et al. 2020

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Chemically nickel oxide nanoparticles (NiONPs) involve the synthesis of toxic products, which restrict their biological applications. Hence, we developed a simple, eco-friendly, and cost-efficient green chemistry method for the fabrication of NiONPs using fresh leaf broth of Rhamnus triquetra (RT). The RT leaves broth was used as a strong reducing, capping, and stabilizing agent in the formation of RT-NiONPs. The color change in solution from brown to greenish black suggests the fabrication of RT-NiONPs which was further confirmed by absorption band at 333 nm. The synthesis and different physicochemical properties of RT-NiONPs were investigated using different analytical techniques such as UV-Vis (ultraviolet−visible spectroscopy), XRD (X-ray powder diffraction), FT-IR (Fourier-transform infrared spectroscopy), SEM (scanning electron microscopy), TEM (transmission electron microscopy), EDS (energy-dispersive X-ray spectroscopy), DLS (dynamic light scattering) and Raman. Further, RT-NiONPs were subjected to different in vitro biological activities and revealed distinctive biosafe and biocompatibility potentials using erythrocytes and macrophages. RT-NiONPs exhibited potential anticancer activity against liver cancer cell lines HUH7 (IC50: 11.3 µg/mL) and HepG2 (IC50: 20.73 µg/mL). Cytotoxicity potential was confirmed using Leishmanial parasites promastigotes (IC50: 27.32 µg/mL) and amastigotes (IC50: 37.4 µg/mL). RT-NiONPs are capable of rendering significant antimicrobial efficacy using various bacterial and fungal strains. NiONPs determined potent radical scavenging and moderate enzyme inhibition potencies. Overall, this study suggested that RT-NiONPs can be an attractive and eco-friendly candidate. In conclusion, current study showed potential in vitro biological activities and further necessitate different in vivo studies in various animal models to develop leads for new drugs to treat several chronic diseases.

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“…The initial photogenerated electron/hole pairs (e/h) can produce by the illumination of arrived UV or visible photons in the conduction (CB) and valence (VB) of the semiconductor. These photoinduced e/h pairs can attack to the organic pollutants directly.They can also react with the dissolved oxygen and water molecules and produce superoxide and hydroxyl radicals, respectively, as other two main reactive species for destroying the pollutants ( Habibi et al 2011;Shabani et al 2016;Honarmand et al 2020;Khanmohammadi et al 2020;Shah et al 2016;Mohamed JafferSadiq et al 2014;Rashmi et al 2020;Bordbar et al 2016).…”

Section: Introductionmentioning

confidence: 99%

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

Iazdani

Nezamzadeh‐Ejhieh

2021

Environ Sci Pollut Res

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The ZnO supported on the ball-mill prepared clinoptilolite nanoparticles (CNPs) was prepared via an ionexchange process followed by the calcination process. The ZnO-CNP catalyst was brie y characterized by XRD, FTIR, and DRS techniques. The pHpzc value for the various ZnO-CNPs was about 7.1 that no changed with the ZnO loading. By applying the Scherrer equation on the XRD results, a nano-dimension was obtained for the catalyst. Band gap energy of the ZnO-CNP samples were estimated by applying the Kubelka-Munk equation on the DRS re ectance spectra. The supported ZnO-CNP sample was then used in the photodegradation of 2,4-dichloroaniline (DCA).The effects of the most important key operating factors on the degradation e ciency was kinetically studied by applying the Hinshelwood equation on the results. The ZnO-CNP catalyst with 2 w% ZnO showed the best photocatalytic rate in the optimal conditions of 0.75 g/L, C DCA : 15 ppm, and the initial pH: 5.8. Finally, HPLC analysis of the blank and the photodegraded DCA solutions at 180 and 300 min con rmed 74 and 87% of DCA molecules were degraded during these times.

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Facile green synthesis of silver oxide nanoparticles and their electrochemical, photocatalytic and biological studies

Cited by 130 publications

References 30 publications

Green Synthesis of Gold and Silver Nanoparticles from Plant Extracts and Their Possible Applications as Antimicrobial Agents in the Agricultural Area

Green Synthesis of Gold and Silver Nanoparticles from Plant Extracts and Their Possible Applications as Antimicrobial Agents in the Agricultural Area

Phytogenic Synthesis of Nickel Oxide Nanoparticles (NiO) Using Fresh Leaves Extract of Rhamnus triquetra (Wall.) and Investigation of Its Multiple In Vitro Biological Potentials

The photocatalytic rate of ZnO supported onto natural zeolite nanoparticles in the photodegradation of an aromatic amine

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