Preparation of antiferromagnetic Co<sub>3</sub>O<sub>4</sub> nanoparticles from two different precursors by pyrolytic method: in vitro antimicrobial activity

Ghosh, Totan; Dash, Sandeep Kumar; Chakraborty, Prateeti; Guha, Averi; Kawaguchi, Kenji; Roy, Somenath; Chattopadhyay, Taraprasad

doi:10.1039/c3ra47769j

Cited by 28 publications

(13 citation statements)

References 41 publications

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“…The shape of a nanomaterial affects cellular uptake, biocompatibility, and retention in tissues and organs (George et al, 2014;Pal, Tak, & Song, 2007). It was also reported that modulation of the shape of NPs can alter their flow in the systemic circulation, adhesion properties with cells, and circulation time (Doshi et al, 2014;Geng et al, 2009).…”

Section: Technical Challengesmentioning

confidence: 99%

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

Abo‐zeid

Williams

2019

WIREs Nanomed Nanobiotechnol

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Microbial infections present a major global healthcare challenge, in large part because of the development of microbial resistance to the currently approved antimicrobial drugs. This demands the development of new antimicrobial agents. Metal oxide nanoparticles (MONPs) are a class of materials that have been widely explored for diagnostic and therapeutic purposes. They are reported to have wide‐ranging antimicrobial activities and to be potent against bacteria, viruses, and protozoans. The use of MONPs reduces the possibility of resistance developing because they have multiple mechanisms of action (including via reactive oxygen species generation), simultaneously attacking many sites in the microorganism. However, despite this there are to date no MONPs clinically approved for antimicrobial therapy. This review explores the recent literature in this area, discusses the mechanisms of MONP action against microorganisms, and considers the barriers faced to the use of MONPs in humans. These include biological challenges, of which the potential for an immune response and off‐target toxicity are key. We explore in detail the possible benefits/disbenefits of an immune response being initiated, and consider the effect of production method (chemical vs. green synthesis) on cytotoxicity. There are also a number of technical and manufacturing challenges hindering MONP translation to the clinic which are additionally discussed in depth. In the short term, there are potentially some “quick wins” from the repurposing of already‐approved nanoparticle‐based medicines for anti‐infective applications, but a number of hurdles, both technical and biological, lie in the path to long‐term clinical translation of new MONP‐based formulations. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Infectious Disease Therapeutic Approaches and Drug Discovery > Emerging Technologies Toxicology and Regulatory Issues in Nanomedicine > Toxicology of Nanomaterials

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Section: Technical Challengesmentioning

confidence: 99%

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

Abo‐zeid

Williams

2019

WIREs Nanomed Nanobiotechnol

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“…These ROS disintegrate all the structural building blocks of bacterial cells, i.e., carbohydrates, proteins and lipids by interacting with them which eventually cause death of bacteria. They also interact with the genetic material of bacteria and interrupt DNA replication, transcription and protein synthesis which lead to bacterial death (Wang et al 2010;Dasari et al 2013;Ghosh et al 2014;Khan et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Antibacterial applications of α-Fe2O3/Co3O4 nanocomposites and study of their structural, optical, magnetic and cytotoxic characteristics

et al. 2018

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Owing to their multiple mechanisms of bactericidal activity, inorganic metal oxides and hybrid metal oxide nanocomposites may serve as a new class of effective disinfectants. Among metal oxide nanoparticles, iron oxide nanoparticles exhibit minimal or no cytotoxicity to human cells with very efficient bactericidal properties over a wide spectrum of bacteria. This paper presents the very first report on antibacterial properties of novel nanocomposites of iron oxide and cobalt oxide nanoparticles against pathogenic bacterial strains B. subtilis, S. aureus, E.coli and S. typhi. The enhanced bactericidal activity of the Fe/Co oxide nanocomposite was the result of synergistic effect of iron oxide and cobalt oxide nanoparticles. The nanocomposites were synthesized using co-precipitation route with increasing cobalt content in the sample and further characterized using XRD, TEM, Raman and VSM to investigate structural, optical and magnetic properties of the prepared nanocomposites, respectively. Also, the prepared nanocomposites were highly biocompatible and found non-toxic to human cell line MCF7.

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“…4,5 The catalytic activity of Co3O4 strongly depends on structural parameters including its surface area, size and morphology. 3,6 A range of synthesis methods including electrodeposition, 7 spray pyrolysis, 8 chemical vapor deposition, 9 atomic layer deposition, 10 and transformation of precursors such as Co (II) salts [11][12][13][14] and coordination compounds 15 have therefore been explored to generate cobalt oxide nanostructures. With their tendency towards the formation of low-dimensional, anisotropic structures with high surface areas, 16,17 and the production of non-toxic gaseous products during their thermal conversion into Co3O4, the precursor-led methods based on the decomposition of cobalt hydroxides, carbonates and basic carbonates are particularly attractive.…”

Section: Introductionmentioning

confidence: 99%

Virus-directed formation of electrocatalytically active nanoparticle-based Co₃O₄ tubes

et al. 2017

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Spinel-type CoO finds applications in a wide range of fields, including clean energy conversion, where nanostructured CoO may provide a cost-efficient alternative to platinum- and iridium-based catalysts for electrocatalytic water-splitting. We here describe a novel strategy in which basic cobalt carbonate - a precursor to CoO - is precipitated as sheet-like structures and microspheres covered with fine surface protrusions, via ammonium carbonate decomposition at room temperature. Importantly, these mild reaction conditions enable us to employ bio-inspired templating approaches to further control the mineral structure. Rod-like tobacco mosaic viruses (TMV) were used as biotemplates for mineral deposition, where we profit from the ability of Co(ii) ions to mediate the ordered assembly of the virus nanorods to create complex tubular superstructures of TMV/ basic cobalt carbonate. Calcination of these tubules is then achieved with retention of the gross morphology, and generates a hierarchically-structured solid comprising interconnected CoO nanoparticles. Evaluation of these CoO materials as electrocatalysts for the oxygen evolution reaction (OER) demonstrates that the activity of CoO prepared by calcination of ammonia diffusion-grown precursors in both, the absence or presence of TMV exceeds that of a commercial nanopowder.

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Preparation of antiferromagnetic Co₃O₄ nanoparticles from two different precursors by pyrolytic method: in vitro antimicrobial activity

Abstract: Two varieties of Co3O4 nano particles (Co3O4-I and Co3O4-II) have been synthesized from two different precursors using a pyrolytic technique and their magnetic and in vitro antimicrobial activity have been investigated.

Cited by 28 publications

References 41 publications

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

Antibacterial applications of α-Fe2O3/Co3O4 nanocomposites and study of their structural, optical, magnetic and cytotoxic characteristics

Virus-directed formation of electrocatalytically active nanoparticle-based Co₃O₄ tubes

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Preparation of antiferromagnetic Co3O4 nanoparticles from two different precursors by pyrolytic method: in vitro antimicrobial activity

Abstract: Two varieties of Co3O4 nano particles (Co3O4-I and Co3O4-II) have been synthesized from two different precursors using a pyrolytic technique and their magnetic and in vitro antimicrobial activity have been investigated.

Cited by 28 publications

References 41 publications

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

The potential anti‐infective applications of metal oxide nanoparticles: A systematic review

Antibacterial applications of α-Fe2O3/Co3O4 nanocomposites and study of their structural, optical, magnetic and cytotoxic characteristics

Virus-directed formation of electrocatalytically active nanoparticle-based Co3O4 tubes

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Product

Resources

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Preparation of antiferromagnetic Co₃O₄ nanoparticles from two different precursors by pyrolytic method: in vitro antimicrobial activity

Virus-directed formation of electrocatalytically active nanoparticle-based Co₃O₄ tubes