Antibacterial activity of MgO nanoparticles based on lipid peroxidation by oxygen vacancy

Krishnamoorthy, Karthikeyan; Manivannan, Govindasamy; Kim, Sang‐Jae; Jeyasubramanian, K.; Premanathan, Mariappan

doi:10.1007/s11051-012-1063-6

Cited by 214 publications

(154 citation statements)

References 42 publications

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“…Calcination temperature could significantly affect the morphology and size of MgO nanoparticles. Similarly, Krishnamoorthy et al (2012) prepared MgO nanoparticles using magnesium nitrate and sodium hydroxide as precursors and cellulose as a stabilizing agent. The size of the as-prepared MgO nanoparticles was in the range from 10 to 30 nm.…”

Section: Hydrothermal Methodsmentioning

confidence: 99%

“…Hewitt et al (2001) reported that the enhancement of the antibacterial activity of MgO nanopowder against E. coli was due to the generation of a large amount of O 2 − by the surface of MgO powder. Recently, Krishnamoorthy et al (2012) evaluated the antibacterial activity of MgO nanoparticles against the gram-negative bacteria E. coli and Pseudomonas aeruginosa (P. aeruginosa), as well as the grampositive bacterium S. aureus. MgO nanoparticles exhibited antibacterial activity with MIC of 500 μg/mL against E. coli and 1000 μg/mL for P. aeruginosa and S. aureus.…”

Section: Antibacterial Mechanism Of Mgo Nanoparticlesmentioning

confidence: 99%

See 1 more Smart Citation

MgO nanoparticles as antibacterial agent: preparation and activity

Tang

2014

Braz. J. Chem. Eng.

336

161

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-Bacterial pollution is a great risk for human health. Nanotechnology offers a way to develop new inorganic antibacterial agents. Nano-inorganic metal oxide has a potential to reduce bacterial contamination. MgO is an important inorganic oxide and has been widely used in many fields. Many studies have shown that MgO nanoparticles have good antibacterial activity. Therefore, in this paper, the main synthesis methods, antibacterial activity and antibacterial mechanisms of MgO nanoparticles are reviewed.

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Section: Hydrothermal Methodsmentioning

confidence: 99%

Section: Antibacterial Mechanism Of Mgo Nanoparticlesmentioning

confidence: 99%

MgO nanoparticles as antibacterial agent: preparation and activity

Tang

2014

Braz. J. Chem. Eng.

336

161

View full text Add to dashboard Cite

show abstract

“…Krishnamoorthy et al [54] investigated the antibacterial activity of MgO, which, like CaO, is an alkaline-earth metal oxide. They suggested that the antibacterial activity of MgO relies on the presence of defects or oxygen vacancies at the surface.…”

Section: Antimicrobial Mechanisms Of Hsspmentioning

confidence: 99%

Disinfection Treatment of Heated Scallop-Shell Powder on Biofilm of <i>Escherichia coli</i> ATCC 25922 Surrogated for <i>E. coli</i> O157:H7

Kubo¹,

Ohshima²,

Irie³

et al. 2013

JBNB

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The ability of heated scallop-shell powder (HSSP) to disinfect Escherichia coli ATCC 25922 biofilm was investigated. On account of its cryotolerance and cell surface characteristics, the E. coli strain is reportedly a useful surrogate for E. coli O157: H7 in surface attachment studies. In this study, an E. coli ATCC 25922 biofilm was formed on a glass plate, and immersed in a slurry of HSSP. Following treatment, the disinfection ability of the HSSP toward the biofilm was non-destructively and quantitatively measured by conductimetric assay. The disinfection efficacy increased with HSSP concentration and treatment time. HSSP treatment (10 mg/mL, pH 12.5) for 20 min completely eliminated biofilm bioactivity (approximately 10 8 CFU/cm 2 in non-treated biofilms). In contrast, treatment with NaOH solution at the same pH, and treatment with sodium hypochlorite (200 g/mL) reduced the activity by approximately one to three log 10 . Fluorescence microscopy confirmed that no viable cells remained on the plate following HSSP treatment (10 mg/mL). Although alkaline and sodium hypochlorite treatments removed cells from the biofilm, under these treatments, many viable cells remained on the plate. To elucidate the mechanism of HSSP activity against E. coli ATCC 25922, the active oxygen generated from the HSSP slurry was examined by chemiluminescence analysis. The luminescence intensity increased with increasing concentration of HSSP slurry. The results suggested that, besides being alkaline, HSSP generates active oxygen species with sporicidal activity. Thus, HSSP treatment could also be effective for controlling biofilms of the toxic strain E. coli O157: H7, implicated in food poisoning.

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“…Due to its high surface area, it is used as an efficient adsorbent for numerous toxic chemicals and acid gases. Recently, MgO nanoparticles have shown promise for application in tumor treatment and also have considerable potential as an antibacterial agent [19][20][21][22][23][24]. In the present work and in continuity to our previous work [25], we study the effect of starting organic precursors on the crystal size and morphology of nanosized MgO.…”

Section: Introductionmentioning

confidence: 78%

Synthesis of MgO Nanoparticles from Different Organic Precursors; Catalytic Decontamination of Organic Pollutants and Antitumor Activity

Moustafa¹,

Saleh²,

Abdelhami³

2017

J Material Sci Eng

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The present work deals with the synthesis of nanostructured MgO from different organic precursors, by a facile precipitation method as catalysts for the decontamination of Malathion (stimulant of chemical warfare agents) (VX) and orange G as organic pollutants. The as-prepared nanoparticles were obtained by thermal decomposition of the oxalate, tartarate, citrate, succinate, malate, malonate and glycinate precursors at ≈650°C and were characterized by thermal analysis, FTIR, X-ray diffraction, high resolution transmission electron microscope (HRTEM) and absorption spectra. The morphology and crystal sizes were found to be highly affected by the starting organic precursors. The results revealed that the prepared inexpensive magnesium oxides have high potential as catalysts for photo degradation of both Malathion and orange G from water samples. Inhibitory activity against Breast Carcinoma MCF-7 cell line was detected using some selected nanosized MgO and compared to that of Vinblastine as a standard drug.

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Antibacterial activity of MgO nanoparticles based on lipid peroxidation by oxygen vacancy

Cited by 214 publications

References 42 publications

MgO nanoparticles as antibacterial agent: preparation and activity

MgO nanoparticles as antibacterial agent: preparation and activity

Disinfection Treatment of Heated Scallop-Shell Powder on Biofilm of <i>Escherichia coli</i> ATCC 25922 Surrogated for <i>E. coli</i> O157:H7

Synthesis of MgO Nanoparticles from Different Organic Precursors; Catalytic Decontamination of Organic Pollutants and Antitumor Activity

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Antibacterial activity of MgO nanoparticles based on lipid peroxidation by oxygen vacancy

Cited by 214 publications

References 42 publications

MgO nanoparticles as antibacterial agent: preparation and activity

MgO nanoparticles as antibacterial agent: preparation and activity

Disinfection Treatment of Heated Scallop-Shell Powder on Biofilm of &lt;i&gt;Escherichia coli&lt;/i&gt; ATCC 25922 Surrogated for &lt;i&gt;E. coli&lt;/i&gt; O157:H7

Synthesis of MgO Nanoparticles from Different Organic Precursors; Catalytic Decontamination of Organic Pollutants and Antitumor Activity

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Disinfection Treatment of Heated Scallop-Shell Powder on Biofilm of <i>Escherichia coli</i> ATCC 25922 Surrogated for <i>E. coli</i> O157:H7