A short review on biosynthesis of cobalt metal nanoparticles

Esa, Yusak Asri Mohd

doi:10.1016/j.matpr.2020.07.183

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…Recently, nanomaterials and their related sciences have been utilised in various fields, such as medicine, electronics, optoelectronics, energy storage, sensors, agriculture, environmental science, information technology, biomaterials, communication engineering, heavy industries, consumer products, water purification, and more, for the purpose of achieving increased efficiency [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Among the different nanomaterials that have been reported so far, p-type semiconducting tricobalt tetroxide nanoparticles (Co 3 O 4 -NPs) have gained significant prominence in the fields of solar cells, capacitors, field effect transistors, energy storage devices, magneto-resistive devices, field emission materials, gas sensing, magnetic semiconductors, rechargeable batteries, heterogeneous catalysis, dye degradation, antimicrobial, antioxidant, and anticancer applications due to their exceptional structural, optical, electrical, magnetic, and catalytic properties [15][16][17][18][19][20]. Nowadays, various conventional physical and chemical processes have been employed to fabricate Co 3 O 4 -NPs through top-down and bottom-up approaches.…”

Section: Introductionmentioning

confidence: 99%

Structural and optical properties of green-synthesised tricobalt tetroxide nanoparticles

Mandal,

Chauhan,

Das

2024

Phys. Scr.

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In this study, we investigated the structural and optical properties of garlic extract-based green-synthesised tricobalt tetroxide nanoparticles. Transmission electron microscopy revealed a particle size range of 8–22 nm for the prepared powder sample. Powder X-ray diffraction data and Rietveld refinement results confirmed the spinel cubic crystal structure of the tricobalt tetroxide nanoparticles, with an average crystallite size of 11.23 nm. This crystal structure corresponds to the Fd3̅m space group and has an average lattice constant of 0.791 nm. The bond lengths of Co3+‒O2- and Co2+‒O2- are measured to be 0.188 nm and 0.190 nm, respectively. The FTIR data provided evidence of the presence of various functional bands, which helped qualitatively determine the purity of the sample. The UV-Vis spectrum estimated two direct energy band gap values (3.7 eV and 2.2 eV) that may be useful for efficient interaction with a wide range of ray spectra to create more electron-hole pairs for various photo-responsive applications, such as dye degradation, solar cells, and optoelectronic components.

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Section: Introductionmentioning

confidence: 99%

Structural and optical properties of green-synthesised tricobalt tetroxide nanoparticles

Mandal,

Chauhan,

Das

2024

Phys. Scr.

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“…Nanotechnology studies nanoscale material characteristics based on size, shape, and morphology [1]. Nanotechnology is highly significant in current research because of its versatility in many disciplines, comprising the chemical industry, energy sciences, electronics, health, food, biomedical sciences, pharmaceuticals, cosmetics, environmental health, mechanics, and space industry [2].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

Kisimba¹,

Krishnan²,

Faya³

et al. 2023

Journal of Renewable Materials

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Nanoparticles have distinct properties that make them potentially valuable in a variety of industries. As a result, emerging approaches for the manufacture of nanoparticles are gaining a lot of scientific interest. The biological pathway of nanoparticle synthesis has been suggested as an effective, affordable, and environmentally safe method. Synthesis of nanoparticles through physical and chemical processes uses unsafe materials, expensive equipment and adversely affects the environment. As a result, in order to support the increased utilization of nanoparticles across many sectors, nanotechnology research activities have shifted toward environmentally safe and cost-effective techniques that outperform chemical and/or biological procedures. The use of organisms to produce metal nanoparticles is among the most frequently discussed methods. Plants appear to be the best candidates among these organisms for large-scale nanoparticle biosynthesis. Medicinal plants have been employed as reducing agents and NP stabilizers to minimize the toxicity of NPs in both the environment and the human body. Furthermore, the presence of certain functional components in plant extracts may be extremely useful and effective for the human body. Polyphenol, for example, which may have antioxidant properties, might intercept free radicals before they interact with other biomolecules and cause considerable damage. The current article analyzes the most recent developments and improvements in the green synthesis of metal nanoparticles by different plants and the use of these nanoparticles for various biomedical applications and hopes to provide insights into this exciting research frontier.

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“…Cobalt is a vital metal of research interest, most often utilized in the preparation of nanoparticles for its biomedical applications like antibacterial, antifungal, antioxidant, anti-inflammatory, in-vivo and in-vitro anticancer studies. The biosynthesis reactions are performed by suitable precursors and they depend on various parameters like temperature, pressure, pH and solvent (1,2). The biogenic process of nanomaterials using various parts of plant extracts has increased their potential results because of their effective phytochemicals such as aldehydes, flavonoids, phenolic compounds, ketones, carboxylic acids, ascorbic acids, terpenoids and amides (3)(4)(5).…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis and Characterization of Co3O4NPs Utilizing Prickly Pear Fruit Extract and its Biological Activities

NAGAJOTHİ¹,

MAHESWARİ²

2022

Journal of the Turkish Chemical Society Section A: Chemistry

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In the current research, there is a low level of research and information about the interaction of cobalt oxide nanoparticles (Co3O4NPs) in biological systems. This research creates a very simple and cost-effective preparation of cobalt oxide nanoparticles by using prickly pear fruit extract as a reducing agent, which may be further used for biological applications like antimicrobial, antioxidant, DNA interaction and in-vitro anticancer activity. The use of prickly pear fruit extract acts as a good reducing agent and is responsible for easy preparation and reducing the toxicity of cobalt oxide nanoparticles. The fabricated biogenic nanoparticles were confirmed by microscopic and spectroscopic analytical techniques like Ultra Violet-Visible spectrometer, Fourier transforms infrared spectrometer (FTIR), X-ray Diffraction Method (XRD), Energy-dispersive X-ray spectroscopy (EDS), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). The average size of the synthesized nanoparticles is 36.24 nm. In the MTT assay, the prepared cobalt oxide NPs haspotential mechanisms of cytotoxicity and in-vitro anticancer activity in Hepatocellular carcinoma cancer cells (HepG2). The microbial activities like antibacterial and antifungal studies of the biosynthesized nanoparticles were performed by the Disc method. The Co3O4NPs with DNA interaction were examined by UV-Visible and fluorescence spectroscopic methods. The binding constant value of biogenic Co3O4NPs with CT-DNA was observed by UV-Visible spectroscopy with a result of 2.57x105mol-1. The binding parameters and quenching constants were observed by fluorescence spectroscopic methods having values of Ksv=7.1x103, kq=7.1x108, Ka=3.47.1x105, n=0.9119. From the findings, Co3O4NPs may be utilized as a medicinal aid for their antibacterial, antifungal, antioxidant, DNA binding and in-vitro anticancer activities.

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A short review on biosynthesis of cobalt metal nanoparticles

Cited by 8 publications

References 35 publications

Structural and optical properties of green-synthesised tricobalt tetroxide nanoparticles

Structural and optical properties of green-synthesised tricobalt tetroxide nanoparticles

Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

Biosynthesis and Characterization of Co3O4NPs Utilizing Prickly Pear Fruit Extract and its Biological Activities

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