Synthesis, characterization and antibacterial activity of cobalt doped cerium oxide (CeO2:Co) nanoparticles by using hydrothermal method

Khadar, Y. A. Syed; Balamurugan, A.; Devarajan, V.; Subramanian, R.; Kumar, Sacheen

doi:10.1016/j.jmrt.2017.12.005

Cited by 99 publications

(49 citation statements)

References 29 publications

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“…Synthesis of cerium oxide nanoparticles have been the subject of numerous studies in the last decade. These powders are employed in various fields including solar cells, catalysts, antibacterial materials in medicine and biology, photonic and electronic devices, and corrosion resistance materials . There is a relation between starting materials, processing and synthesis method, microstructure, structure and properties of the final product.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, a wide range of techniques with a lot of affecting parameters have been conducted for the synthesis, processing and sintering of ceramic materials. Similar to many oxide ceramic materials, CeO 2 have been synthesized by different approaches including sol‐gel, precipitation, hydrothermal, thermal decomposition, and combustion methods. As expected, different synthesis methods may lead to various structures, morphologies, properties and consequently, diverse potential applications.…”

Section: Introductionmentioning

confidence: 99%

“…As expected, different synthesis methods may lead to various structures, morphologies, properties and consequently, diverse potential applications. On the one hand, For example, crystalline phase, particle morphology, and surface chemistry of the hydrothermal synthesized powders can be easily controlled by precursor composition, reaction temperature and time, pressure, solvent, aging temperature and aging time . On the other hand, solution combustion method as an easy, fast and inexpensive technique can produce nanosized powders due to the lack of time for grain (crystallite) growth.…”

Section: Introductionmentioning

confidence: 99%

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Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor

Ghahramani

Arabi

Afarani

et al. 2020

Int J Applied Ceramic Tech

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In this study, combustion synthesis of cerium oxide nanoparticles was reported using cerium nitrate hexahydrate as starting material as well as urea, glycine, glucose, and citric acid as fuels. The influence of fuel type on structure, microstructure, band gap, and corrosion inhibition was investigated. X‐ray diffraction (XRD) patterns and scanning electron microscopy micrographs showed that CeO2 nanoparticles with different morphologies were obtained depending on the fuel type. Microstructural changes from unreacted gel to sponge‐like morphologies were resulted by varying the fuel type from urea, glycine, and glucose to citric acid. In addition to Ce–O bonds, Fourier transform infrared analysis showed carbon bonds of carbonaceous compositions from incomplete combustion which were declined during combustion reaction. Furthermore, corrosion analyses showed that samples synthesized using urea fuel released the most Ce+4 ions and could have better protection than other samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor

Ghahramani

Arabi

Afarani

et al. 2020

Int J Applied Ceramic Tech

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“…Recently, nanoparticles of many metal oxides like zinc oxide, copper oxide, iron oxide, cobalt oxide, cerium oxide etc. have shown various biological activities including antibacterial activity against Gram-positive and Gram-negative bacteria [6][7][8][9]. The bactericidal property by different metal oxide nanoparticles occurs by various mechanisms [10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and concentration dependant antibacterial potentials of nickel oxide nanoparticles against Staphylococcus aureus and Escherichia coli

Gupta¹,

Kant²,

Gupta³

et al. 2020

Nanosystems: Phys. Chem. Math.

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Bacterial resistance to antibiotic treatment is a major emerging clinical and public health issue across the globe. Advancements in the field of metal oxide nanomaterials in the last few years have improved the potential of metal oxides in different applications. Metal oxides, of which, nickel oxide (NiO) is one, also possess antibacterial activities. This investigation was planned to synthesize NiO nanoparticles to study their antibacterial potential in comparison with bulk NiO and standard antibiotics at different concentrations. Synthesis and characterization of NiO nanoparticles was done by standard procedures. The antibacterial potentials of different compounds were determined at different concentrations against S. aureus and E. coli. The diameter of zone of inhibition showed that the antibacterial effect of NiO nanoparticles against S. aureus was better than E. coli at the same concentration. The concentration-dependent effect of NiO nanoparticles was observed from 0.125 to 128 µg/ml. The effect of NiO nanoparticles was markedly better than bulk NiO at all concentrations. Tetracycline and gentamicin did not show effect below 1.0 µg/ml and 2.0 µg/ml, respectively. The activity index and fold increase of NiO nanoparticles were both higher than 1 and positive, with respect to tetracycline, gentamicin and bulk NiO against S. aureus and E. coli at all the tested concentrations. In conclusion, the NiO nanoparticles seemed to be a more potent antibacterial agent than their bulk form, tetracycline and gentamicin, and in future, their applications may be extended in biomedical field and other areas to reduce microbial infections and incidences of antibacterial resistance.

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“…CuPt NPs exhibited better growth inhibition of E. coli , S. aureus and P. aeruginosa with 12.7, 11 and 10 mm zone diameters, respectively . Co‐doped cerium oxide nanoparticles (1 mg mL −1 ) synthesized by the hydrothermal method show almost similar inactivity to kill E. coli , S. aureus , Bacillus cereus and Salmonella typhi . AgPt NPs are formed on reduced graphene oxide for antibacterial applications using E. coli as a target strain …”

Section: Introductionmentioning

confidence: 99%

One pot green synthesis of Pt, Co and Pt@Co core‐shell nanoparticles using Sechium edule

Chelli

Golder

2018

J of Chemical Tech & Biotech

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BACKGROUND: Common approaches for the synthesis of metallic nanostructured materials require the use of fine chemicals and energy-intensive processes. This work reports a simple eco-friendly (green) method to engineer the structure of cobalt (Co), platinum (Pt) and PtCo core-shell nanoparticles using plant-based analytes present in the extract of Sechium edule, the fruit of a perennial climber plant. RESULTS: Ascorbic acid (294 mg kg −1 dry fruit) was found to be the primary analyte and it acted for both metal ion reduction and nanoparticle destabilization forming a conjugate with the carboxylate group. The sharp rise in negative zeta-potential with the rise in pH from a highly acidic medium resulted from a strong destabilization tendency of Pt and Co nanostructures over a wide pH range. The size and colloidal stability, morphology and crystal structure were confirmed with the support of dynamic light scattering, transmission electron microscopy and X-ray diffraction. Co nanoprisms (47.3 nm), Pt nanospheres (28.6 nm) and PtCo core-shell (13.2-26.4 nm) nanoparticles were formed with a polydispersity index of 0.18-0.38. The synergistic effects such as ligand interaction between core and shell and the geometric effect improved the antibacterial activity against Bacillus subtilis and Escherichia coli bacteria in comparison to Pt nanospheres and Co nanoprisms, and these results were comparable with ciprofloxacin and cefprozil as the antibiotic controls. CONCLUSION: Plant analytes served as the electron donors for the formation of Pt and Co nanostructures and also stabilized the particles growth to tailor their structures for an improved antibacterial functionality.

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Synthesis, characterization and antibacterial activity of cobalt doped cerium oxide (CeO2:Co) nanoparticles by using hydrothermal method

Cited by 99 publications

References 29 publications

Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor

Solution combustion synthesis of cerium oxide nanoparticles as corrosion inhibitor

Synthesis, characterization and concentration dependant antibacterial potentials of nickel oxide nanoparticles against Staphylococcus aureus and Escherichia coli

One pot green synthesis of Pt, Co and Pt@Co core‐shell nanoparticles using Sechium edule

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