Comparative antibacterial potential of silver nanoparticles prepared via chemical and biological synthesis

Aguirre, Dafne P. Ramírez; Loyola, Erika Flores; Salcido, Norma Margarita de la Fuente; Sifuentes, Lucio Rodríguez; Moreno, Agustina Ramírez; Marszalek, Jolanta E.

doi:10.1016/j.arabjc.2020.09.057

Cited by 20 publications

(4 citation statements)

References 43 publications

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“…AgNPs synthesized by biological methods have shown a higher antibacterial effect regarding those synthesized by chemical methods [28]. The S. queretaroensis peel aqueous extract did not show any antibacterial activity at the same concentrations tested as S. queretaroensis-mediated AgNPs.…”

Section: Discussionmentioning

confidence: 81%

Biosynthesis of Silver Nanoparticles Using Stenocereus queretaroensis Fruit Peel Extract: Study of Antimicrobial Activity

et al. 2021

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The synthesis and application of nanomaterials as antioxidants and cytotoxic agents has increased in recent years. Biological methods go beyond the chemical and physical synthesis that is expensive and not friendly to the environment. Foodborne pathogens and microorganisms causing candidiasis are responsible of 5–10% hospitalized patients. The nutritional properties of the fruit called pitaya, from the Stenocereus queretaroensis species, have been little explored. Therefore, in this study the phytochemical composition of S. queretaroensis peel was evaluated and silver nanoparticles (AgNPs) were synthesized biologically in an environmentally friendly way by S. queretaroensis peel aqueous extract that contains phytochemicals capable of reducing silver nitrate. The antimicrobial activity of the AgNPs was tested by determining the minimum inhibitory concentration (MIC), minimal bactericidal concentration (MBC) and time-kill kinetics. AgNPs were characterized visually, by UV-visible spectroscopy and TEM. FTIR spectroscopy identified metabolites responsible for the AgNPs formation. AgNPs showed potent antimicrobial activity against gram-negative and gram-positive bacteria, against fungi, and a methicillin-resistant strain of S. aureus. MIC and MBC values were as low as 0.078 and 0.156 μg/mL using AgNPs biosynthesized by S. queretaroensis fruit peel and the time kill assay started a log reduction in CFU/mL at 1 × MIC and 2 × MIC. S. queretaroensis-mediated AgNPs could be the basis for the formulation of biofilms for packaging products or as disinfectants for use on different surfaces.

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Section: Discussionmentioning

confidence: 81%

Biosynthesis of Silver Nanoparticles Using Stenocereus queretaroensis Fruit Peel Extract: Study of Antimicrobial Activity

et al. 2021

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“…Moreover, the recovery of blood parameters by the Cc-AgNPs and Pg-AgNPs indicated that they may enhance the fish’s immune response, enabling them to better withstand the bacterial challenge. The NPs made with biological extracts exhibit a stronger antibacterial impact than those made through chemical reduction [ 29 ]. AgNPs synthesized via biosynthesis utilizing Aspergillus niger were observed in relation to Escherichia coli , wherein a complete disruption of the bacterial membrane was observed after contact [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Role of Citrullus colocynthis and Psidium guajava Mediated Green Synthesized Silver Nanoparticles in Disease Resistance against Aeromonas hydrophila Challenge in Labeo rohita

Hafeez,

Kanwal,

Raza

et al. 2023

Biomedicines

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Green synthesis of metallic nanoparticles is an auspicious method of preparing nanoparticles using plant extracts that have lesser toxicity to animal cells and the host. In the present work, we analyzed the antibacterial activity of Citrullus colocynthis and Psidium guajava-mediated silver nanoparticles (Cc-AgNPs and Pg-AgNPs, respectively) against Aeromonas hydrophila (A. hydrophila) in an in vivo assay employing Labeo rohita (L. rohita). L. rohita were divided into six groups for both Cc-AgNPs and Pg-AgNPs treatments separately: Control, A. hydrophila infected, A. hydrophila + Ampicillin, A. hydrophila + Cc/Pg-AgNPs (25 µg/L), A. hydrophila + Cc/Pg-AgNPs (50 µg/L), and A. hydrophila + Cc/Pg-AgNPs (75 µg/L). Changes in different bio-indicators such as hematological, histological, oxidative stress, and cytokine analysis were observed. Interestingly, the infected fish treated with both types of AgNPs (Cc-AgNPs and Pg-AgNPs) exhibited a higher survival rate than the untreated infected fish and demonstrated signs of recovery from the infection, providing a compelling indication of the positive impact of phytosynthesized AgNPs. Disruptions in hematological and histological parameters were found in the infected fish. Both Cc-AgNPs and Pg-AgNPs showed recovery on the hematological and histological parameters. Analysis of oxidative stress and cytokine markers also revealed provoking evidence of the positive impact of Cc-AgNPs and Pg-AgNPs treatment against disease progression in the infected fish. The major finding of the study was that the higher concentrations of the nanoparticles (50 µg/L in the case of Cc-AgNPs and 75 µg/L in the case of Pg-AgNPs) were more effective in fighting against disease. In conclusion, our work presents novel insights for the use of green-synthesized AgNPs as economic and innocuous antibacterial candidates in aquaculture.

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“…Despite the many benefits of nanofertilizers, the antibacterial potential of nanoparticles in general has also received substantial attention ( Nath et al, 2008 ; Ramírez Aguirre et al, 2020 ; Thakral et al, 2021 ). The applied nanofertilizers may inadvertently have negative impacts on the beneficial microbial populations in the soil and on plants.…”

Section: Application Of Nanoparticles In Agriculturementioning

confidence: 99%

Nanoparticle applications in agriculture: overview and response of plant-associated microorganisms

Mgadi,

Ndaba,

Roopnarain

et al. 2024

Front. Microbiol.

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Globally, food security has become a critical concern due to the rise in human population and the current climate change crisis. Usage of conventional agrochemicals to maximize crop yields has resulted in the degradation of fertile soil, environmental pollution as well as human and agroecosystem health risks. Nanotechnology in agriculture is a fast-emerging and new area of research explored to improve crop productivity and nutrient-use efficiency using nano-sized agrochemicals at lower doses than conventional agrochemicals. Nanoparticles in agriculture are applied as nanofertilizers and/or nanopesticides. Positive results have been observed in terms of plant growth when using nano-based agricultural amendments. However, their continuous application may have adverse effects on plant-associated rhizospheric and endospheric microorganisms which often play a crucial role in plant growth, nutrient uptake, and disease prevention. While research shows that the application of nanoparticles has the potential to improve plant growth and yield, their effect on the diversity and function of plant-associated microorganisms remains under-explored. This review provides an overview of plant-associated microorganisms and their functions. Additionally, it highlights the response of plant-associated microorganisms to nanoparticle application and provides insight into areas of research required to promote sustainable and precision agricultural practices that incorporate nanofertilizers and nanopesticides.

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Comparative antibacterial potential of silver nanoparticles prepared via chemical and biological synthesis

Cited by 20 publications

References 43 publications

Biosynthesis of Silver Nanoparticles Using Stenocereus queretaroensis Fruit Peel Extract: Study of Antimicrobial Activity

Biosynthesis of Silver Nanoparticles Using Stenocereus queretaroensis Fruit Peel Extract: Study of Antimicrobial Activity

Role of Citrullus colocynthis and Psidium guajava Mediated Green Synthesized Silver Nanoparticles in Disease Resistance against Aeromonas hydrophila Challenge in Labeo rohita

Nanoparticle applications in agriculture: overview and response of plant-associated microorganisms

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