Ultrafine dispersed CuO nanoparticles and their antibacterial activity

Mahapatra, Ojas; Bhagat, Megha; Gopalakrishnan, C.; Arunachalam, Kantha Deivi

doi:10.1080/17458080802395460

Cited by 202 publications

(86 citation statements)

References 9 publications

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“…Considering these unique properties, nanosized organic and inorganic particles are being generated for ultimate use in medical practices, such as metal oxides of zinc, copper, and iron in biomedical research. 8,9 In addition, nanoparticles with smaller particle size have been reported to show good antimicrobial activity. 10 Antimicrobial activity of nanoparticles has largely been studied with human pathogenic bacteria such as Escherichia coli 11 and Staphylococcus aureus.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of metal oxide nanoparticles against Gram-positive and Gram-negative bacteria: a comparative study

Azam¹,

Ahmed²,

Oves³

et al. 2012

IJN

1,166

564

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Background: Nanomaterials have unique properties compared to their bulk counterparts. For this reason, nanotechnology has attracted a great deal of attention from the scientific community. Metal oxide nanomaterials like ZnO and CuO have been used industrially for several purposes, including cosmetics, paints, plastics, and textiles. A common feature that these nanoparticles exhibit is their antimicrobial behavior against pathogenic bacteria. In this report, we demonstrate the antimicrobial activity of ZnO, CuO, and Fe 2 O 3 nanoparticles against Gram-positive and Gram-negative bacteria. Methods and results: Nanosized particles of three metal oxides (ZnO, CuO, and Fe 2 O 3 ) were synthesized by a sol-gel combustion route and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and transmission electron microscopy techniques. X-ray diffraction results confirmed the single-phase formation of all three nanomaterials. The particle sizes were observed to be 18, 22, and 28 nm for ZnO, CuO, and Fe 2 O 3 , respectively. We used these nanomaterials to evaluate their antibacterial activity against both Gram-negative (Escherichia coli and Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus and Bacillus subtilis) bacteria. Conclusion: Among the three metal oxide nanomaterials, ZnO showed greatest antimicrobial activity against both Gram-positive and Gram-negative bacteria used in this study. It was observed that ZnO nanoparticles have excellent bactericidal potential, while Fe 2 O 3 nanoparticles exhibited the least bactericidal activity. The order of antibacterial activity was demonstrated to be the following: ZnO . CuO . Fe 2 O 3 .

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Section: Introductionmentioning

confidence: 99%

Antimicrobial activity of metal oxide nanoparticles against Gram-positive and Gram-negative bacteria: a comparative study

Azam¹,

Ahmed²,

Oves³

et al. 2012

IJN

1,166

564

View full text Add to dashboard Cite

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“…Attempts are made to prepare CuO nanoparticles using different methods such as spray pyrolysis (Chiang et al 2012), electrochemical techniques (Chen et al 2009), hydrothermal treatments (McAuleya et al 2008, sonochemical method (Gandhi et al 2010), and wet chemical methods (Mahapatra et al 2008) with different morphologies. Among these methods, sonochemical preparation method is used to break the chemical bond of the solution compound.…”

Section: Introductionmentioning

confidence: 99%

Study of structural and optical properties of cupric oxide nanoparticles

et al. 2015

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In this study, cupric oxide (CuO) nanoparticles were synthesized via sonochemical method. The samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscope, and transmission electron microscopy. The spherical CuO nanoparticles were dispersed in sodium hexametaphosphate under sonication (25 kHz) to analyze the particle size distribution and UV absorption spectra. Using these absorption spectra, we further examined the CuO nanoparticle to explore the possibility of using them as a material for applications such as solar cell and textile production.

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“…Though Usman et al [77] have also testified to the antimicrobial and antifungal activities of Cu-chitosan NPs against methicillin-resistant S. aureus, B. subtilis, C. albicans, P. aeruginosa and Salmonella choleraesuis, Pape et al [78] have confirmed that the antibacterial activity of Cu NPs was significantly weaker than that of Ag NPs. Moreover, Cu NPs were rapidly oxidized when exposed to air [79], limiting their application.…”

Section: Introduction Of Metal Nanoparticles Into Mao Electrolytementioning

confidence: 99%

Review of Antibacterial Activity of Titanium-Based Implants’ Surfaces Fabricated by Micro-Arc Oxidation

Zhang

Wang

et al. 2017

Coatings

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Ti and its alloys are the most commonly-used materials for biomedical applications. However, bacterial infection after implant placement is still one of the significant rising complications. Therefore, the application of the antimicrobial agents into implant surfaces to prevent implant-associated infection has attracted much attention. Scientific papers have shown that inorganic antibacterial metal elements (e.g., Ag, Cu, Zn) can be introduced into implant surfaces with the addition of metal nanoparticles or metallic compounds into an electrolyte via micro-arc oxidation (MAO) technology. In this review, the effects of the composition and concentration of electrolyte and process parameters (e.g., voltage, current density, oxidation time) on the morphological characteristics (e.g., surface morphology, bonding strength), antibacterial ability and biocompatibility of MAO antimicrobial coatings are discussed in detail. Anti-infection and osseointegration can be simultaneously accomplished with the selection of the proper antibacterial elements and operating parameters. Besides, MAO assisted by magnetron sputtering (MS) to endow Ti-based implant materials with superior antibacterial ability and biocompatibility is also discussed. Finally, the development trend of MAO technology in the future is forecasted.

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Ultrafine dispersed CuO nanoparticles and their antibacterial activity

Cited by 202 publications

References 9 publications

Antimicrobial activity of metal oxide nanoparticles against Gram-positive and Gram-negative bacteria: a comparative study

Antimicrobial activity of metal oxide nanoparticles against Gram-positive and Gram-negative bacteria: a comparative study

Study of structural and optical properties of cupric oxide nanoparticles

Review of Antibacterial Activity of Titanium-Based Implants’ Surfaces Fabricated by Micro-Arc Oxidation

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