scholarly journals A New Tool Against Anopheles Gambiae 4th Instar Larvae; Ocimum basilicum Mediated Silver Nanoparticles

2021 ◽  
Vol 13 (2) ◽  
pp. 11-20
Author(s):  
Ntoumba Antoinette ◽  
Sikapi Yves ◽  
Akeumbiwo Cedric ◽  
Mepoubong Alida ◽  
Wolfgang Ekoko ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Anopheles Gambiae ◽  
Ocimum Basilicum

scholarly journals Synthesis of Silver Nanoparticles by Ocimum basilicum Seed Extract and its Application in H2O2 Sensing

2020 ◽  
Vol 3 (7) ◽  
pp. 17-22
Author(s):  
Fouzia , ◽  
Atirah Tauseef ◽  
Ahmad Khalilullah ◽  
Imran Uddin
Keyword(s):  
Silver Nanoparticles ◽  
Ocimum Basilicum ◽  
Seed Extract ◽  
H2o2 Sensing

scholarly journals Toxicity of Ocimum basilicum and Ocimum gratissimum Extracts against Main Malaria Vector, Anopheles gambiae (Diptera: Culicidae) in Nigeria

2020 ◽  
Author(s):  
Kayode David Ileke ◽  
Jacobs Mobolade Adesina
Keyword(s):  
Anopheles Gambiae ◽  
Malaria Vector ◽  
Plant Extracts ◽  
Malaria Parasite ◽  
Aquatic Organism ◽  
Ocimum Basilicum ◽  
Tropical Countries ◽  
Ocimum Gratissimum ◽  
Ocimum Species ◽  
Lc50 And Lc90

  Background: Anopheles gambiae (Diptera: Culicidae) transmit malaria parasite that causes malaria fever in humans, causing millions of deaths every year among infants in tropical countries. This study was undertaken to assess the tox-icity of Ocimum basilicum and Ocimum gratissimum against pre-adult stages and adult malaria vector, An. gambiae and non-targeted aquatic organism, fingerlings of Clarias garipienus. Methods: Ethalonic extracts of O. basilicum and O. gratissimum were prepared according to the method described by WHO. The larvae and pupae of An. gambiae were exposed to plant extracts for 24h and their mortality was recorded. Toxicity of Ocimum species on non-targeted organism, fingerlings of C. garipienus was also investigated. Results: Ocimum basilicum showed remarkably potency against pre-adult stages and adults An. gambiae causing 100% mortality at 0.4% concentration within 24h of treatment. The LC50 and LC90 of O. basilicum were lower than O. gratti-simum in all stages of An. gambiae studied. Ocimum basilicum and O. gratissimum extracts significantly reduced the number of bites by the vector given a range of 72.25% to 81.75% protection. Ocimum species at the tested concentra-tions did not significantly reduce the number of fingerlings introduced. Conclusion: Ocimum species at the tested concentrations did not significantly reduce the numbers of non-targeted or-ganisms, fingerlings introduced. Therefore, O. basilicum and O. gratissimum

scholarly journals Development of Silver Nanoparticles/PEG/Glycerine Composite for Antibacterial Effect using Leaf Extract of Ocimum sanctum and Ocimum basilicum

2018 ◽  
Vol 4 (5) ◽  
pp. 527-532
Author(s):  
Diksha B. Lade ◽  
Dayanand P. Gogle ◽  
Bipin D. Lade
Keyword(s):  
Silver Nanoparticles ◽  
Polyethylene Glycol ◽  
Leaf Extract ◽  
Synthesis Method ◽  
Sem Analysis ◽  
Ocimum Basilicum ◽  
Ocimum Sanctum ◽  
Ftir Characterization ◽  
Aqueous Leaf Extract ◽  
Sun Light

The main purpose of the experiment is to use green synthesis method for silver nanoparticles (SNP) fabrication using phytochemical and functional groups inherent in aqueous leaf extract of Ocimum sanctum and Ocimum basilicum for formulation of polyethylene glycol (PEG)/ Glycerine film. The SNP synthesis reaction is performed under sun condition and change in colour from light brown to dark brown was the initial indication, observed for nanoparticles synthesis. The 95 mL of 0.001 M AgNO3 is mixed with 5 mL of leaf extract and reaction performed under Sun light at alkaline pH 8 was found efficient to produced stable NP. The synthesized SNP are mixed with (10%, 50%, 100%, 150%, 200% and 250%), polyethylene glycol (PEG):glycerine (G) in 1:1 ratio to form a film. The UV-spectroscopic analysis confirms absorption at 420-430 nm for synthesized SNP. The FTIR characterization determines alkynes (terminal), 1�, 2� amines, amides, nitriles, alkynes, alkyl halides functional group from O. sanctum (OS) leaf extract and aldehydes, alkynes (terminal), alkyne, alkene, from O. basilicum (OB) leaf extract responsible for reducing and capping silver nitrate to form nanoparticles. The SEM analysis verify that the O. sanctum based nanoparticles are spherical in shape although O. basilicum based nanoparticles have bright contrast coral reef like morphology. The average zeta potential of silver nanoparticles was found to be 27.74 mV and 23.50 mV that are embedded in Ocimum sanctum-SNP/PEG and Ocimum basilicum-SNP/PEG films. Also, the average diameters of SNP in Ocimum sanctum-SNP/PEG and in Ocimum basilicum-SNP/PEG was found to be 463.2 nm and 43.0 nm. These Sun light mediated SNP shows antimicrobial activity against E. coli and S. aureous pathogens.

Chemical Composition and Ovicidal, Larvicidal and Pupicidal Activity of Ocimum basilicum Essential Oil against Anopheles gambiae. (Diptera: Culicidae)

2016 ◽  
Vol 16 (3) ◽  
pp. 1-13 ◽  
Author(s):  
Foko Aurelie ◽  
Nyegue Ascension ◽  
Tsila Gabriel ◽  
Awono Herman ◽  
Ndong Pauline ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Anopheles Gambiae ◽  
Ocimum Basilicum
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