Comparative antibacterial activity of magnetic iron oxide nanoparticles synthesized by biological and chemical methods against poultry feed pathogens

Mohan, Preetha; Mala, Rajendran

doi:10.1088/2053-1591/ab4964

Cited by 32 publications

(23 citation statements)

References 33 publications

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“…In this sense, researchers are focusing their efforts on discovering alternatives to antibiotic feed additives that do not compromise productivity, since the usage of antibiotic feed additives has been a subject of increasing concern. Nanoparticles have recently been used to replace the high-cost organic source [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

Gelatin-Based Biofilms with FexOy-NPs Incorporated for Antioxidant and Antimicrobial Applications

et al. 2022

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Currently, gelatin-based films are regarded as promising alternatives to non-environmentally friendly plastic films for food packaging. Nevertheless, although they have great biodegradability, their weak mechanical properties and high solubility limit their applications. In this way, the use of nanoparticles, such as FexOy-NPs, could improve the properties of gelatin-based biofilms. Thus, the main objective of this work was to include different concentrations of FexOy-NPs (0.25 and 1.0%) manufactured by green synthesis (GS) and chemical synthesis (CS) into gelatin-based biofilms in order to improve their properties. The results show that FexOy-NPs can be distributed throughout the biofilm, although with a greater concentration on the upper surface. In addition, the incorporation of FexOy-NPs into the biofilms improves their physicochemical, mechanical, morphological, and biological properties. Thus, it is possible to achieve suitable gelatin-based biofilms, which can be used in several applications, such as functional packaging in the food industry, antioxidant and antimicrobial additives in biomedical and pharmaceutical biomaterials, and in agricultural pesticides.

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Section: Introductionmentioning

confidence: 99%

Gelatin-Based Biofilms with FexOy-NPs Incorporated for Antioxidant and Antimicrobial Applications

et al. 2022

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“…Additionally, they can show antibacterial effects both as Fe 2 O 3 and as Fe 3 O 4 due to multiple mechanisms including ROS species, superoxide radical's generation and singlet oxygen formation [36,37]. However, despite the advantages described above, chemically synthesized iron oxide nanoparticles agglomerate and possess reduced stability [38], requiring post-synthesis modification [39]. Therefore, the integration of nano-materials with new properties into Ti biomimetic scaffolds can be an effective strategy to develop innovative biomaterials for tissue engineering.…”

Section: Introductionmentioning

confidence: 99%

Dual-Functional Nano-Functionalized Titanium Scaffolds to Inhibit Bacterial Growth and Enhance Osteointegration

et al. 2021

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Implantable biomaterials play a key role for the success of orthopedic surgery procedures. However, infections remain one of the most damaging post-operative complications that lead to the implant failure. Recently, several approaches have been proposed to avoid or manage implant-associated infections. Among these, an appropriate surface functionalization to confer intrinsic antibacterial properties preserving the osteo-integration ability represents an appealing strategy for the development of innovative implant materials. Titanium and its alloys are the most used materials for manufacturing of both articular and bone skull prostheses as well as dental implants. However, to date there is still a significant clinical need to improve their bioactivity, osseointegration and antibacterial activity. In this study, titanium biomimetic scaffolds are prepared by nano-functionalization with TiO2 (Ti_TiO2) and γFe2O3 (Ti_γFe2O3). Both cytocompatibility and antibacterial activity have been evaluated. Data show that both nano-functionalized scaffolds exhibit a good antibacterial activity towards Staphylococcus aureus, reducing colony number to 99.4% (Ti_TiO2) and 99.9% (Ti_γFe2O3), respectively. In addition, an increase of both human adipose-derived mesenchymal stem cells (hADSCs) cell proliferation (up to 4.3-fold for Ti_TiO2 and 3.7-fold for Ti_gFe2O3) and differentiation has been observed. These data suggest that these nano-functionalized titanium substrates represent promising prototypes for new antimicrobial and osteoconductive biomaterials to be used in the orthopedic field to reconstruct significant bone defect.

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“…There are three main routes for Fe 3 O 4 NPs synthesis, namely, physical, chemical, and biological techniques, but the most commonly applied method is chemical co-precipitation [ 133 , 134 , 135 , 136 ]. Nonetheless, researchers are currently focusing on green synthesis methods, as the so-obtained NPs are less toxic, more stable, and have reduced sizes and agglomeration tendency [ 137 ].…”

Section: Inorganic Nanoparticles With Antimicrobial Propertiesmentioning

confidence: 99%

“…Furthermore, Fe 2+ and Fe 3+ ions are released from the NPs, leading to the production of high amounts of ROS and consequent DNA replication disruption, DNA double-strand breaking, and lipid peroxidation [ 129 , 138 , 139 , 140 ]. The antibacterial properties of Fe 3 O 4 NPs have been proven against E. coli , K. pneumoniae , P. aeruginosa , B. subtilis , S. epidermidis , and H. pylori [ 137 , 138 , 139 ]. However, results have demonstrated increased bactericidal effects against Gram-negative bacteria compared to Gram-positive bacteria [ 129 ].…”

Section: Inorganic Nanoparticles With Antimicrobial Propertiesmentioning

confidence: 99%

Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies

Spirescu

Chircov

Grumezescu

et al. 2021

IJMS

107

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The development of drug-resistant microorganisms has become a critical issue for modern medicine and drug discovery and development with severe socio-economic and ecological implications. Since standard and conventional treatment options are generally inefficient, leading to infection persistence and spreading, novel strategies are fundamentally necessary in order to avoid serious global health problems. In this regard, both metal and metal oxide nanoparticles (NPs) demonstrated increased effectiveness as nanobiocides due to intrinsic antimicrobial properties and as nanocarriers for antimicrobial drugs. Among them, gold, silver, copper, zinc oxide, titanium oxide, magnesium oxide, and iron oxide NPs are the most preferred, owing to their proven antimicrobial mechanisms and bio/cytocompatibility. Furthermore, inorganic NPs can be incorporated or attached to organic/inorganic films, thus broadening their application within implant or catheter coatings and wound dressings. In this context, this paper aims to provide an up-to-date overview of the most recent studies investigating inorganic NPs and their integration into composite films designed for antimicrobial therapies.

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Comparative antibacterial activity of magnetic iron oxide nanoparticles synthesized by biological and chemical methods against poultry feed pathogens

Cited by 32 publications

References 33 publications

Gelatin-Based Biofilms with FexOy-NPs Incorporated for Antioxidant and Antimicrobial Applications

Gelatin-Based Biofilms with FexOy-NPs Incorporated for Antioxidant and Antimicrobial Applications

Dual-Functional Nano-Functionalized Titanium Scaffolds to Inhibit Bacterial Growth and Enhance Osteointegration

Inorganic Nanoparticles and Composite Films for Antimicrobial Therapies

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