Anti-microbial activity of cobalt doped zinc oxide nanoparticles: Targeting water borne bacteria

Oves, Mohammad; Arshad, Mohd Khairuddin; Khan, Mohd Shahnawaz; Ahmed, Arham S.; Azam, Ameer; Ismail, Iqbal M.I.

doi:10.1016/j.jscs.2015.05.003

Cited by 92 publications

(44 citation statements)

References 34 publications

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“…The disease-causing agents (bacteria, fungi, viruses, algae, and protozoa) could be transmitted through water purification systems, contaminated medical devices such as catheters and dental materials, and food manufacturing machines, which create obvious threat for human health and the ambient ecosystem [1]. In developing countries, approximately 12 million people die annually due to consumption of water contaminated with various microbes as pointed out by Oves et al [2]. Notably, the microbial population is naturally capable of developing resistance against commercial antibiotic drugs, besides their ability to organize biofilm structures which formed 15% aggregates of microbial cells embedded in 85% of the extracellular matrix which comprises glycolipids, polysaccharides, proteins, and DNA which undoubtedly leads to ineffectiveness of drugs [2,3].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, nanotechnology which is described as "the sixth revolutionary technology" after the industrial revolution, nuclear energy revolution, green revolution, information technology revolution, and biotechnology revolution [4] opens the door for multidrug-resistant microorganism (MDR) defeat by virtue of metal nanomaterials' leadingedge nature. Recently, membrane and polymers incorporated nanoparticles (NPs) which were developed for the water purification system [2], and NP-coated fabrics [5], bandages, walls, bed linen, surfaces, and medical equipment were examined as magic cure against microbial contamination [6,7]. Among others, transition metal oxide NPs were deemed particularly attractive for the application of a new class of antimicrobial agents.…”

Section: Introductionmentioning

confidence: 99%

“…In this context, The US FDA has already approved some metal oxides such as ZnO as safe antimicrobial agents against bacteria, fungi, and virus [9]. Additionally, conjugation of antibiotic and metal NPs in "combination therapy" against pathogens exhibited a promising solution to stop MDR crisis [2,10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biosynthesis, Characterization of Some Combined Nanoparticles, and Its Biocide Potency against a Broad Spectrum of Pathogens

Eltarahony

Zaki

Elkady

et al. 2018

Journal of Nanomaterials

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The development of environmentally benign procedures for the synthesis of metallic nanoparticles (NPs) is a vital aspect in bionanotechnology applications for health care and the environment. This study describes the biosynthesis of Ag, Co, Ni, and Zn NPs by employing nanobiofactory Proteus mirabilis strain 10B. The physicochemical characterization UV-visible spectroscopy, scanning electron microscopy-energy-dispersive X-ray microanalysis (EDX), X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), dynamic light scattering (DLS) technique including ζ potential, and polydispersity index (PDI) confirmed the formation of pure, stable monodisperse quasi-spherical oxide NPs of corresponding metals. The antimicrobial activity of biofabricated NPs was assessed against Gram-negative and Gram-positive bacteria, biofilm, yeast, mold, and algae via a well diffusion method. The results displayed significant antagonistic activity in comparison to their bulk and commercial antibiotics. Interestingly, the combined NPs exhibited promising synergistic biocide efficiency against examined pathogens which encourages their applications in adjuvant therapy and water/wastewater purification for controlling multiple drug-resistant microorganisms. To the best of our knowledge, no previous study reported the synthesis of semiconductor NPs by Proteus mirabilis and the biocide potency of combined NPs against a broad spectrum of pathogens not reported previously.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biosynthesis, Characterization of Some Combined Nanoparticles, and Its Biocide Potency against a Broad Spectrum of Pathogens

Eltarahony

Zaki

Elkady

et al. 2018

Journal of Nanomaterials

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“…SEM images revealed that, after treatment, Co dopped nanoparticles morphology changed from rod to spherical shaped. Cobalt dopped zinc oxide nanomaterials were tested as a bactericidal agent resulting that this treatment and exposure of sunlight enhanced the antibacterial activity against Escherichia coli and Vibrio cholerae at 50 μg concentration [27]. Antimicrobial activity of zinc oxide powders was investigated on the five microbial strains of Escherichia coli; Staphylococcus aureus; Pseudomonas aeruginosa; Candida albicans; Aspergillus brasiliensis in order to assessed relationships between the structural parameters and physicochemical characteristics of zinc oxide particles and their antimicrobial activity.…”

Section: Experimental Partmentioning

confidence: 99%

Antimicrobial property of zinc based nanoparticles

Chiriac

Stratulat

Calin

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Pathogen bacteria strains with wide spectrum can cause serious infections with drastic damages on humans. There are studies reflecting antibacterial effect of nanoparticles type metal or metal oxides as an alternative or concurrent treatment to the diseases caused by infectious agents. Synthesised nanoparticles using different methods like sol-gel, hydrothermal or plant extraction were tested following well-established protocols with the regard to their antimicrobial activity. It was found that zinc based nanoparticles possess strong synergistic effect with commonly used antibiotics on infection tratment.

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“…Water pollution is a major problem that hampers socio‐economic development, especially after the increase in population and continuous growth in urbanization, industrialization, and irrigated agriculture. The consumption of water contaminated with pathogens caused death of nearly 12 million people, particularly in developing countries . The water‐borne pathogens causing diseases are originated in free‐living form or biofilm.…”

Section: Introductionmentioning

confidence: 99%

Study on the Antagonistic Potential of Biosynthesized Hematite Nanoparticles During Water and Wastewater Treatment

Eltarahony

Zaki

Kheiralla

et al. 2019

CLEAN Soil Air Water

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Microbial pollution of water is one of the hazardous factors that threaten public health and the surrounding ecosystem. Therefore, the development of environmentally benign nanoparticles with exceptional properties has increased the drive toward improvement of water/wastewater disinfection. Accordingly, we aim to address the antagonistic effect of biogenic hematite nanoparticles (HNPs) against a broad spectrum of microorganisms and in water/wastewater disinfection systems. The minimum inhibitory concentration of HNPs at a range of 0.075–9.6 mg mL−1 is examined. The results demonstrate that Gram‐positive bacteria are more susceptible to HNPs than Gram‐negative ones. In addition, the growth of Candida albicans and Aspergillus brasiliensis is inhibited by applying 1.2 mg mL−1 of HNPs, which indicates antifungal activity. Moreover, HNPs (0.3 mg mL−1) inhibits 58.7, 50.5, and 86.3% of the growth of Staphylococcus aureus, Pseudomonas aeruginosa biofilms, and Chlorella vulgaris, respectively. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) of untreated and HNPs‐treated cells of Escherichia coli, Staphylococcus aureus, Clostridium perfringens, Candida albicans, and Chlorella vulgaris are studied, and the ultrastructure micrographs show ultrastructure deformities caused by HNPs. Remarkable disinfection strength reaches up to 99.8%, mainly with increasing dose and contact time. The current study highlights the efficiency of HNPs as a biocide, which could contribute to water/wastewater treatment as an alternative for chlorine.

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Anti-microbial activity of cobalt doped zinc oxide nanoparticles: Targeting water borne bacteria

Cited by 92 publications

References 34 publications

Biosynthesis, Characterization of Some Combined Nanoparticles, and Its Biocide Potency against a Broad Spectrum of Pathogens

Biosynthesis, Characterization of Some Combined Nanoparticles, and Its Biocide Potency against a Broad Spectrum of Pathogens

Antimicrobial property of zinc based nanoparticles

Study on the Antagonistic Potential of Biosynthesized Hematite Nanoparticles During Water and Wastewater Treatment

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