Sol–gel preparation and antibacterial properties of Li-doped MgO nanoplates

Rao, Y. Hanumantha; Wang, Wei; Tan, Fatang; Cai, Yu; Lu, Junwen; Qiao, Xueliang

doi:10.1016/j.ceramint.2014.06.035

Cited by 47 publications

(18 citation statements)

References 31 publications

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“…However, the O 1s peak for Ag-MgO nanocomposite can be fitted into three peaks. The peak O I centered at 532.58 eV is attributed to the absorbed oxygen[24]. The peak O II centered at 531.55 eV is closely associated with the lattice oxygen of MgO.…”

mentioning

confidence: 97%

Highly effective antibacterial activity and synergistic effect of Ag-MgO nanocomposite against Escherichia coli

Zhu

Wang

et al. 2016

Journal of Alloys and Compounds

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mentioning

confidence: 97%

Highly effective antibacterial activity and synergistic effect of Ag-MgO nanocomposite against Escherichia coli

Zhu

Wang

et al. 2016

Journal of Alloys and Compounds

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Section: Synthesis Of Antimicrobic Nanomaterialsmentioning

confidence: 99%

Section: Synthesis Of Antimicrobic Nanomaterialsmentioning

confidence: 99%

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Miao

Teng

Wang

et al. 2018

Adv Materials Technologies

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The microbial contamination of water is highlighted as a global problem that threatens human life. Specifically, the lack of clean and safe water has resulted in a high number of deaths annually and thus poses a great challenge to humans. The traditional water purification methods typically consume high amounts of energy, exhibit low disinfection efficiency, and result in the production of toxic by‐products. Therefore, the development of methods for efficient water disinfection is of great significance. Nanomaterials have shown promising prospects in water disinfection due to their unique properties. Recent progress in the use of nanomaterials for water disinfection is summarized herein. The recently developed methods for the synthesis of antibacterial nanomaterials, including metallic nanoparticles, nanosized carbide and nitrides, are depicted, and the structures, morphologies, instincts, and performances of the nanomaterials in bactericidal tests are discussed. In addition, the antibacterial mechanisms and the dominant elements influencing the antimicrobial activities of the nanomaterials are reviewed in detail. Although recent years have shown remarkable progress in water disinfection using nanomaterials, the development of disinfection agents with improved nanoeffects and performance, low toxicity, increased cost efficiency, and easier operation remains urgent.

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“…Till date,thefollowingpropertiesofMgOareknown:(i)MgOexhibitscontact-basedantibacterial action [108];(ii)increasingthepHinbacterialsuspensionduetoMgOhydrationdidnot contribute to its antibacterial activity [108];(iii)dissolvedMg 2+ were not causing harm to bacteria [108];(iv)AFMandSEMmorphologystudiesconfirmeddeteriorationof bacterialmembrane, which indicated membrane leakage [111,114];(v)TEMstudyshowedlackofMgO particleinternalizationinbacteria,whichindicatedthatMgOparticlesare"doingthedamage" outside of the bacteria [111].IthasbeenshownthatthebactericidalpotentialofMgOis proportionaltoitsspecificsurfacearea.TheMgOwiththehighestspecificsurfacearea(BET) exhibitedthemosteffectiveantibacterial activity [115].Improvementintheeffectivenessof thebacteria/surfacecontactisalsoachievedbyLi-dopingwhichenhancedthecreationof oxygen vacancies and improved antibacterial activity [116]. The strength of the nanoparticleinteractionisinverselyproportionaltothesize,i.e.smallerparticlesexhibitedstronger agglomeration [117].Theagglomerationcouldstronglyinfluencethefurtherprocessingof MgO nanoparticles [118].MgOparticlescontainingmicrorodsexhibitedmoderateantibacterial activity, while nano-textured microrods showed strongly improved antibacterial activity.As-preparedparticlesexhibitedreduced agglomeration,lowerspecificsurfaceareaand improvedbactericidalpotentialwhencomparedtothecommercialMgOnanoparticles.We attributedthedifferenceinantibacterialactivitytoareducedconcentrationofnon-emissive defectsatthesurfaceofnano-texturedMgOmicrorods [118]. Magnesium is the second most abundant intracellular cation in the human body [119] essential in many physiological processeslikeenzymeactivity,membraneprocesses,functioningofmuscleandneuraltissue, and so on.…”

Section: Nanostructured Mgomentioning

confidence: 99%

Inorganic Nanoparticles: Innovative Tools for Antimicrobial Agents

Kurtjak¹,

Aničić²,

Vukomanovicć³

2017

Antibacterial Agents

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Resistance of bacteria to antibiotics is an urgent problem of humanity, which leads to a lack of therapy for serious bacterial infections. Development of new antibiotics has almost ceased in the last decades-even when a new antibiotic is launched, very soon the resistance of bacteria appears. There is a long list of applications where antimicrobial protection is required to achieve effective treatment. However, if we use the same antibiotics for all these applications, we will remain caught in the "vicious circle" of constant discovery of new synthetic antibiotics and very fast development of their resistantspecies.Therefore,weneedtofindalternativestrategiesthatwillberoutinely usedforsomespecificconditions(wounds,implants,etc.).Thus,wewillkeeptheactivity ofantibioticsandsavethemforacuteconditions(pneumonia,meningitis,etc.).Anoption for designing alternative antimicrobial strategies is to go back to the antimicrobials that were used before the discovery of antibiotics, i.e., inorganic antimicrobial agents includ-

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Sol–gel preparation and antibacterial properties of Li-doped MgO nanoplates

Cited by 47 publications

References 31 publications

Highly effective antibacterial activity and synergistic effect of Ag-MgO nanocomposite against Escherichia coli

Highly effective antibacterial activity and synergistic effect of Ag-MgO nanocomposite against Escherichia coli

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Inorganic Nanoparticles: Innovative Tools for Antimicrobial Agents

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