Antimicrobial sensitivity of Escherichia coli to alumina nanoparticles

Sadiq, I. Mohammed; Chowdhury, Basudev; Chandrasekaran, Natarajan; Mukherjee, Amitava

doi:10.1016/j.nano.2009.01.002

Cited by 235 publications

(131 citation statements)

References 19 publications

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“…1a. These results indicated that Sphingobium yanoikuyae XLDN2-5 cells showed limited resistance to Fe 3 O 4 nanoparticles at low concentration as described in previous studies [19,28,29]. However, Fe 3 O 4 nanoparticles presented relatively high nanotoxicity to Sphingobium yanoikuyae XLDN2-5 cells at higher Fe 3 O 4 nanoparticles concentration.…”

Section: Viability Of Microbial Cells After Exposure To Fe 3 O 4 Nanosupporting

confidence: 84%

Effect of Fe3O4 nanoparticles on Sphingobium yanoikuyae XLDN2-5 cells in carbazole biodegradation

Sun

Liu

et al. 2017

Nanotechnol. Environ. Eng.

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nanoparticle made it possible to penetrate Sphingobium yanoikuyae XLDN2-5 cell membrane. Furthermore, reactive oxygen species increases, membrane damage, and DNA damage should be responsible for the antibacterial mechanism of Fe 3 O 4 nanoparticles at high concentration. This study presented essential knowledge for better understanding of Fe 3 O 4 nanoparticles behavior in the environment, and helping to promote safer and more effective application of nanomaterials in nanotechnologybased environmental bioremediation.

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Section: Viability Of Microbial Cells After Exposure To Fe 3 O 4 Nanosupporting

confidence: 84%

Effect of Fe3O4 nanoparticles on Sphingobium yanoikuyae XLDN2-5 cells in carbazole biodegradation

Sun

Liu

et al. 2017

Nanotechnol. Environ. Eng.

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“…Some results from a series of recent scientific investigations in which cells were cultured in contact with nanoparticles tend to show that carbon nanotubes and metal nanoparticles (such as Ag and Au nanoparticles) might be more toxic than metal oxide nanoparticles (silica, alumina, titanium oxide and zinc oxide) [18][19][20][21][22][23] . The toxicity seems also to increase with the concentration of the nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…The toxicity seems also to increase with the concentration of the nanoparticles. The level of toxicity may even be useful to kill cancer cells or bacteria if properly controlled [19][20][21] . Toxicity related to nanoparticles derived from clay minerals is much less known.…”

Section: Introductionmentioning

confidence: 99%

Porous biodegradable polyurethane nanocomposites: preparation, characterization, and biocompatibility tests

et al. 2010

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A porous biodegradable polyurethane nanocomposite based on poly(caprolactone) (PCL) and nanocomponents derived from montmorillonite (Cloisite ® 30B) was synthesized and tested to produce information regarding its potential use as a scaffold for tissue engineering. Structural and morphological characteristics of this nanocomposite were studied by infrared spectroscopy (FTIR), X-ray diffraction (XRD), small angle X-ray scattering (SAXS) and scanning electron microscopy (SEM). The reaction between polyurethane oligomers with isocyanate endcapped chains and water led to the evolution of CO 2 , which was responsible for building interconnected pores with sizes ranging from 184 to 387 µm. An in vitro cell-nanocomposite interaction study was carried out using neonatal rat calvarial osteoblasts. The ability of cells to proliferate and produce an extracellular matrix in contact with the synthesized material was assessed by an MTT assay, a collagen synthesis analysis, and the expression of alkaline phosphatase. In vivo experiments were performed by subcutaneously implanting samples in the dorsum of rats. The implants were removed after 14, 21, and 29 days, and were analyzed by SEM and optical microscopy after tissue processing. Histology crosssections and SEM analyses showed that the cells were able to penetrate into the material and to attach to many location throughout the pore structure. In vitro and in vivo tests demonstrated the feasibility for polyurethane nanocomposites to be used as artificial extracellular matrices onto which cells can attach, grow, and form new tissues.

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“…Reactive groups on a particle surface are likely to modify its biological activity. Therefore, changes in surface chemistry and the type of metal oxide nanoparticle are important in terms of microbial toxicity issues [12]. Alumina nanoparticles are thermodynamically stable particles over a wide temperature range.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Antibacterial Activity of Aluminium Oxide Nanoparticles

Manyasree

Kiranmayi

Kumar

2018

Int J Pharm Pharm Sci

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Objective: In the present study, synthesized alumina (Al2O3) Methods:The synthesis was carried out by coprecipitation method using aluminium sulfate and NaOH as precursors. The synthesized aluminium oxide nanoparticles were characterized by using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR) and scanning electron microscope (SEM) with nanoparticles were characterized and their antibacterial activity against gram positive and gram negative organisms were studied.Energy Dispersive X-ray Analysis (EDX) techniques. Besides, this study determines the antibacterial activity and minimum inhibitory concentration (MIC) of Al2O3Results: The average crystallite size of Al nanoparticles against gram-positive (Staphylococcus aureus and Streptococcus mutans) and gram-negative (E. coli and Proteus vulgaris) bacteria.2 O3 nanoparticles was found to be 35 nm by X-ray diffraction. FT-IR spectrum exhibited the peaks at 615 and 636 were assigned to the aluminium oxide stretching. The EDX measurements indicated the presence of Al along with O peaks. It indicates the purity of the sample. The antimicrobial assay revealed that E. coli showed a maximum zone of inhibition (39 mm) at 50 mg/ml concentration of Al2O3 Conclusion:In conclusion, aluminium oxide is a good antibacterial agent against both gram positive and gram-negative organisms.nanoparticles.

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Antimicrobial sensitivity of Escherichia coli to alumina nanoparticles

Cited by 235 publications

References 19 publications

Effect of Fe3O4 nanoparticles on Sphingobium yanoikuyae XLDN2-5 cells in carbazole biodegradation

Effect of Fe3O4 nanoparticles on Sphingobium yanoikuyae XLDN2-5 cells in carbazole biodegradation

Porous biodegradable polyurethane nanocomposites: preparation, characterization, and biocompatibility tests

Synthesis, Characterization and Antibacterial Activity of Aluminium Oxide Nanoparticles

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