Citrus limon fruit juice-assisted biomimetic synthesis, characterization and antimicrobial activity of cobalt oxide (Co3O4) nanoparticles

Anuradha, C. T.; Raji, P.

doi:10.1007/s00339-020-04209-7

Cited by 21 publications

(10 citation statements)

References 33 publications

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“…Figure 6 displays the EDX spectrum of the Co 3 O 4 NPs synthesized using the rosemary leaf extract. The major components of the synthesized nanoparticles were only O and Co, with atomic percentages of 24 and 75.9%, respectively; this is almost identical to the theoretical 3:4 ratio in Co 3 O 4 NPs [ 14 ].…”

Section: Resultssupporting

confidence: 59%

“…Co 3 O 4 NPs had previously been investigated as therapeutic agents for treating disorders such as microbial infections, rendering them attractive for use in biomedical applications [ 13 ]. In comparison to antibiotics, Co 3 O 4 NPs have fewer side effects, and higher antibacterial and antifungal properties at low concentrations, and are nontoxic to the body at low levels [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Al-Qasmi

2022

Molecules

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In this study, rosemary leaf extract was effectively used to synthesize cobalt oxide nanoparticles (Co3O4 NPs) using a rapid, low-cost, and environmentally friendly approach. The prepared Co3O4 NPs were examined using various analytical techniques. However, UV spectrum analysis displayed two sharp absorption peaks at~350 and 745 nm. The dynamic light scattering and zeta potential measurements were used to evaluate the particle size and the effective stabilization of the synthetic nanoparticles in the suspensions. A semi-triangular pyramidal shape of the Co3O4 NPs with a wide particle-size distribution could be observed in the scanning electron microscopy images. The energy-dispersive X-ray spectrum confirmed their successful synthesis, as the experimental atomic percentages agreed with the theoretical values. Moreover, X-ray diffraction analysis revealed that the synthesized Co3O4 NPs had a cubic crystalline structure corroborating that of theoretical Co3O4. Additionally, the Co3O4 NPs were not toxic at ≤62.5 µg /mL for Hep G2 and at ≤31.25 µg /mL for Mcf7. Therefore, these unique environmentally friendly Co3O4 NPs at this safe concentration could be studied in the future for their therapeutic activity.

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Section: Resultssupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Al-Qasmi

2022

Molecules

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“…In this project, we proposed the preparation of α-Fe 2 O 3 /Fe 3 O 4 heteroplasmon nanoparticles by a feasible and facile hydrolysis-combustion-calcination process of ferric nitrate, and the effects of hydrolysis time, hydrolysis temperature, Fe 3+ concentrations, anhydrous ethanol dosage, calcination temperature [23][24][25], and calcination time on properties of α-Fe 2 O 3 /Fe 3 O 4 were revealed.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of α-Fe₂O₃/Fe₃O₄ heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate

Liu

Zhang

Wang

et al. 2022

Mater. Res. Express

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In this work, a feasible and facile hydrolysis-combustion-calcination process of ferric nitrate for the preparation of magnetic α-Fe2O3/Fe3O4 heteroplasmon nanoparticles was represented. The influences of hydrolysis time, hydrolysis temperature, Fe3+ concentration, anhydrous ethanol volume, calcination time, and calcination temperature on the properties of α-Fe2O3/Fe3O4 heteroplasmon nanoparticles were investigated. According to a series of characterization analysis, the optimal preparation conditions were confirmed: 0.05 M Fe(NO3)3·9H2O was hydrolyzed at 90 ℃ for 8 h, and then the precursor was calcined at 200 ℃ for 2 h with 20 mL anhydrous ethanol. While, the morphology of α-Fe2O3/Fe3O4 heteroplasmon were spherical structures with the average particle size of about 46 nm, and their saturation magnetization was 54 emu g-1. The α-Fe2O3/Fe3O4 heteroplasmon nanoparticles possessed controllable magnetic properties and a more stable state, which suggested promising applications.

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“…Thus, we prefer to use a green synthesis approach for the preparation of nanoparticles [3]. Synthesis of metal oxide nanoparticles through plant-mediated green synthesis has fascinated scientists and researchers from noxious methods because of its environmentally friendly, non-hazardous, and non-toxic fabrication systems [6]. Plant-based nanoparticles are synthesized from the different origins of plants and are widely used in multiple applications from target drug delivery to the treatment of tumor cells.…”

Section: Ntroductionmentioning

confidence: 99%

Green synthesis of cobalt oxide nanoparticles using roots extract of Ziziphus Oxyphylla Edgew its characterization and antibacterial activity

Saeed

Mazhar

Raees

et al. 2022

Mater. Res. Express

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In this modern era, antibiotic resistance is a significant issue that poses a threat to public health. Nanotechnology is an emerging field of science because nanoparticles could be the best alternative to antibiotics. Most nanoparticles are prepared by the green synthesis method because of their less toxicity, low cost, and non-hazardous nature. In this study, cobalt oxide nanoparticles (Co3O4-NPs) were synthesized from roots extract of Ziziphus Oxyphylla Edgew by using cobalt chloride hexahydrate. After the successful synthesis of nanoparticles, various methods were used to analyze these nanoparticles, including Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction analysis, and energy dispersive analysis of x-ray. Scanning electron microscopy images reveal the spherical and irregular structure of Co3O4-NPs shaving a particle size between 40 to 60 nm. X-ray diffraction analysis revealed the crystalline nature of cobalt oxide nanoparticles with face-centered cubic structure and a size of 15-20 nm. The antibacterial activity of Co3O4-NPs was analyzed for different dilutions against two different bacteria: gram-negative (E. coli) and gram-positive (S. aureus) bacteria. The maximum zone of inhibition against gram-negative E. coli was calculated as 23.1 mm and 14.8 mm against S. aureus at a dilution of 16 mg/ml of cobalt oxide nanoparticle. This revealed the wide spectrum of antibacterial activity of the synthesized nanoparticle. It is suggested that root extract of cobalt oxide nanoparticles could be of great importance in pharmaceutical and medical science for their antimicrobial activity.

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Citrus limon fruit juice-assisted biomimetic synthesis, characterization and antimicrobial activity of cobalt oxide (Co3O4) nanoparticles

Cited by 21 publications

References 33 publications

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Preparation and characterization of α-Fe₂O₃/Fe₃O₄ heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate

Green synthesis of cobalt oxide nanoparticles using roots extract of Ziziphus Oxyphylla Edgew its characterization and antibacterial activity

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Citrus limon fruit juice-assisted biomimetic synthesis, characterization and antimicrobial activity of cobalt oxide (Co3O4) nanoparticles

Cited by 21 publications

References 33 publications

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Sustainable and Efficacy Approach of Green Synthesized Cobalt Oxide (Co3O4) Nanoparticles and Evaluation of Their Cytotoxicity Activity on Cancerous Cells

Preparation and characterization of α-Fe2O3/Fe3O4 heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate

Green synthesis of cobalt oxide nanoparticles using roots extract of Ziziphus Oxyphylla Edgew its characterization and antibacterial activity

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Preparation and characterization of α-Fe₂O₃/Fe₃O₄ heteroplasmon nanoparticles via the hydrolysis-combustion-calcination process of iron nitrate