Silver-Cobalt Bimetallic Nanoparticles as a Nanotechnological Method for Control of Culex quinquefasciatus-Borne Diseases

Danbature, Wilson Lamayi; Shehu, Zaccheus; Yoro, Mela

doi:10.9734/bpi/cacb/v1/6999d

Cited by 2 publications

(5 citation statements)

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“…The colour variations of the reaction solution mixture changes were visually observed. The solution was stored for 24 hours after which the nanoparticles obtained were evaporated and dried in an oven at 105 • C (18) .…”

Section: Synthesis Ag-co Bnps At Room Temperaturementioning

confidence: 99%

“…The colour shift of the reaction mixture indicates that the formation of silver cobalt nanoparticles occurs simultaneously with the instantaneous commencement of green reduction of the silver ions. The colour variation of the algal extract was obvious on visual observation from pinkish to light brown (18,21) . This transition of colour is mainly attributed to the algal active compounds that act as reducing, stabilizing, and capping agents [Figure 1].…”

Section: Synthesis Of Bnpsmentioning

confidence: 99%

“…The 3]. Concurrently, it was observed that absorption peak values differed among others (18,25,26) .…”

Section: Ftir Analysismentioning

confidence: 99%

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Study of Antioxidant, Antimicrobial and Cytotoxic Activities of Ag-Co Bimetallic Nanoparticles Biosynthesized from Red Alga (Amphiroa sp.)

Logeswari,

Yamini,

Pavithra

et al. 2024

IJST

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Objectives: To biosynthesize, evaluate, and investigate the green synthesis of silver-cobalt bimetallic nanoparticles using red alga Amphiroa sp. and its interactions with human pathogens in a colloidal condition. Methods: The marine red algal extract of Amphiroa sp. was used to synthesize the bimetallic nanoparticles of Ag and Co. For this 50mL of 10-3 aqueous Ag-Co prepared solutions were combined with 50mL of pure algal extract. It was characterized by UV-Vis, FTIR, XRD, and SEM. It was tested for its antioxidant, antibacterial, and cytotoxic activities. The antibacterial activity of bimetallic nanoparticles was tested on five human pathogens Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, and Pseudomonas aeruginosa. The MTT assay method was used for cytotoxic activity for MCF-7 Breast cancer cell lines. Findings: The green synthesized Amphiroa sp. bimetallic nanoparticles showed a UV-Vis spectrum absorption peak at 517nm. Analysis of the FTIR spectra verified the functional groups involved in the production of the Ag-Co nanoparticles. The diffraction pattern of silver-cobalt nanoparticles and the X-ray diffraction pattern of silver nanoparticles showed diffraction angles at 2θ values of 32.5°(15), 46.5°(11) which correspond to (111), (200), and (220). The particle size distribution, which ranges from 56 to 250nm, and the shape was revealed by SEM investigation to be cubic to rhomboidal, thus, they were confirmed to be nanoparticles as well as fine particles/particulate matter. Radical scavenging activity by DPPH, ABTS, and ferrous-reducing power assays were used to investigate the antioxidant potential. The antibacterial activity of bimetallic nanoparticles was tested on five human pathogens and with the zone of inhibition of 23, 18, and 20 mm for Pseudomonas aeruginosa, Escherichia coli and Bacillus subtilis, respectively. The cytotoxic effect was observed on MCF-7 cancer cell lines were evaluated by MTT assay. The IC50 value of our Ag-Co bimetallic sample was found to be 70.90µg/ml at 200µg/mL concentrations. Novelty: Biosynthesizing and investigating Ag-Co bimetallic nanoparticles using red alga and its characterization, antioxidant, antimicrobial and cytotoxic activity. Keywords: Amphiroa sp.; Ag-Co Bimetallic nanoparticles (BNPs); antioxidant, antibacterial and cytotoxic activity

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Section: Synthesis Ag-co Bnps At Room Temperaturementioning

confidence: 99%

Section: Synthesis Of Bnpsmentioning

confidence: 99%

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Study of Antioxidant, Antimicrobial and Cytotoxic Activities of Ag-Co Bimetallic Nanoparticles Biosynthesized from Red Alga (Amphiroa sp.)

Logeswari,

Yamini,

Pavithra

et al. 2024

IJST

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“…Green nanopesticides synthesized from the extract of various plant species using different plant parts and nanoparticles of metals like Ag, Zn, Co, Cu, Ti, Au etc.have been found to be effective for the management of mosquito populations [68]. According to a number of studies, green synthesized metallic nanoparticles are toxic to mosquitoes and may also cause morphological and histological malformations during their development [65].…”

Section: As Pesticides For Control Of Disease Vectorsmentioning

confidence: 99%

“…Nanoparticles of zinc oxide synthesized with phytoextract of Cipadessa baccifera caused high larval mortality in Anopheles stephensi, Aedes aegypti and Culex quinquefasciatus [72]. Bimetallic nanoparticles of silver and cobalt synthesized with root extract of Palmyra palm caused high larval mortality of Culex quinquefasciatus [68].…”

Section: As Pesticides For Control Of Disease Vectorsmentioning

confidence: 99%

Nanopesticides: Promising Future in Sustainable Pest Management

Gupta

Saxena

Mehra

et al. 2023

JOAASR

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Insects form the most successful and diverse group of animals present on earth today. Humans have shared a complex relationship with the insects. Though insects are indispensable as pollinators of crops yet at the same time they act as major destroyer of grains, pulses and fruits in the fields along with their post- harvest storage. Many of the dreadful diseases are also being transmitted by insect vectors to humans, livestock and other animals. Economic damage caused by insect pests is enormous. Adoption of advanced pest management strategies can alleviate the monetary losses substantially. Nanotechnological approach for pest control is an emerging and effective technique since it encompasses a wide range of objectives of an efficient pesticide like increased dispersion and solubility, slow release, controlled delivery system and protection against degradation. Newer formulations of pesticides with the intervention of nanotechnology are aimed to enhance their pesticidal properties. Insecticide formulations using nanomaterials as carriers of active ingredient have shown promising results for mitigation of pests of agriculture, storage and disease vectors. However, at present the knowledge is limited. There is a need for extensive evaluation of the toxicity of nanopesticides and the risks involved for humans and environment before their large-scale production and adoption. In this review article nanoformulations of pesticides with special emphasis on metal-based nanopesticides and their role as efficient alternatives in sustainable control of insect pests without much adverse impact on the environment has been summarized.

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Silver-Cobalt Bimetallic Nanoparticles as a Nanotechnological Method for Control of Culex quinquefasciatus-Borne Diseases

Cited by 2 publications

References 0 publications

Study of Antioxidant, Antimicrobial and Cytotoxic Activities of Ag-Co Bimetallic Nanoparticles Biosynthesized from Red Alga (Amphiroa sp.)

Study of Antioxidant, Antimicrobial and Cytotoxic Activities of Ag-Co Bimetallic Nanoparticles Biosynthesized from Red Alga (Amphiroa sp.)

Nanopesticides: Promising Future in Sustainable Pest Management

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