Biosynthesis, characterization, and antimicrobial effect of silver nanoparticles obtained using Lavandula × intermedia

Elemike, Elias E.; Onwudiwe, Damian C.; Ekennia, Anthony C.; Katata-Seru, Lebogang

doi:10.1007/s11164-016-2704-7

Cited by 36 publications

(26 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The concentration of MgO nanoparticle present in each dosage which was prepared by using the three distinct leaf extracts as tabulated in Table 3. difference in the antibacterial mechanism may be due to the quantity of phytochemicals present in the leaf extract [38] or the nanoparticle concentration from leaf extract mediated synthesis [64]. It has been explained in literature that phytochemicals serve as the reducing and stabilizing agent for nanoparticle synthesis [38].…”

Section: Dosage Of Mgo Nanoparticlesmentioning

confidence: 99%

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Jeevanandam¹,

Chan²,

Danquah³

2019

Med One

View full text Add to dashboard Cite

Foodborne pathogens especially bacteria cause a vast number of diseases which leads to a high mortality rate in humans. Conventional antibiotics have been employed in an attempt to eradicate these pathogens and this has led to the evolution of a multidrug resistant bacteria strain. Thus, a new genre of antibiotics is prepared by using nanoparticles as they show effective antibacterial capabilities. Biosynthesized nanoparticles are less toxic to humans as compared to chemically synthesized nanoparticles which are prepared using toxic precursors. They also exhibit enhanced antibacterial action along with the biomolecules that help in their formation. Among most metal oxides, magnesium oxide (MgO) nanoparticles show unique antibacterial properties due to their exclusive oxide vacancies and crystalline structure. The antibacterial activity of MgO nanoparticles synthesized using leaf extract is further enhanced by the presence of phytochemicals. The present work is a comparative study of the antibacterial activity of MgO nanoparticles synthesized using three different leaf extracts: (1) Amaranthus tricolor, (2) Amaranthus blitum and (3) Andrographis paniculata and their reaction towards Escherichia coli which is a gram negative, food borne pathogen. The results showed that the ~78 nm spherical shaped MgO nanoparticles synthesized from A. blitum, exhibited the highest antibacterial activity at 60 µL dosage. In addition, the effects of the characteristics of the MgO nanoparticles such as size, morphology, concentration, surface charge and phytochemicals on antibacterial mechanism were also discussed.

show abstract

Section: Dosage Of Mgo Nanoparticlesmentioning

confidence: 99%

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Jeevanandam¹,

Chan²,

Danquah³

2019

Med One

View full text Add to dashboard Cite

show abstract

“…[6] Synthesis of NPs is possible by means of chemical, physical and biological techniques. [7][8][9][10][11][12][13][14][15][16][17][18][19] Although there are drawbacks such as long reaction times, high temperatures, difficult and hazardous reaction conditions, and low yields, the use of toxic and expensive capping agents and utilization of organic solvents, which can lead to environmental pollution, are still challenges in most of chemical physical techniques. [8,9] Therefore, it is essential to develop new approaches for the synthesis of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…[10] Thus, these methods have gained much attention. [11][12][13][14] The synthesis of MNPs and metal oxide NPs using green techniques requires plants or plant extracts. Natural plants are inexpensive, harmless, and can be used for the production of NPs with great stability.…”

Section: Introductionmentioning

confidence: 99%

Efficient Sonogashira and A³ coupling reactions catalyzed by biosynthesized magnetic Fe₃O₄@Ni nanoparticles from Euphorbia maculata extract

Alinezhad

Pakzad

Nasrollahzadeh

2020

Applied Organom Chemis

View full text Add to dashboard Cite

In this work, biosynthesized Fe3O4@Ni nanoparticles using Euphorbia maculata aqueous have been used as effective catalysts in the synthesis of 2,3‐disubstituted benzo[b]furan derivatives using three component coupling of aldehydes, secondary amines and alkynes (A3 coupling reaction). Using novel nanoscale materials, the current green, practical and economical method leads to short reaction times and high yields. The biosynthesized catalyst was also successfully employed in the Sonogashira cross‐coupling reactions of various aryl halides with phenylacetylene. The best performance was observed using just 20 mg of the catalyst and ethanol as a green solvent. The developed protocol provides easy workup, short reaction times and good to excellent product yields. Furthermore, since the composite is highly stable, an external permanent magnet can be easily used for separating the catalyst. Thus, the catalyst can be recycled several times without considerable loss of catalytic activity.

show abstract

“…The AgNPs were tested for antimicrobial potentials against ten pathogenic microorganisms, namely, P.aeruginosa, E. coli, K. pneumoniae, S. aureus, B. subtilis, C. albicans, A. niger, Penicillium notatum, R. stolonifer, and S. typhi. The results showed that both AgNPs have significant activities against the bacteria, but with lesser activities on a few of the tested fungi Elemike et al (2017b). used extract of leaf of Lavandula × intermedia to produce AgNPs of averagely 12.6 nm that inhibited Klebsiella oxytoca, E. coli, and C. albicans by 10-23 mm.…”

mentioning

confidence: 99%

Green Nanotechnology in Nigeria: The Research Landscape, Challenges and Prospects

Elegbede¹,

Lateef

2019

Annals of Science and Technology

View full text Add to dashboard Cite

In this treatise, we examined the activities of researchers of Nigeria descent in the frontier areas of nanoscience and nanotechnology, with a focus on green nanotechnology. The exploration of literature published by scholars were reviewed and compartmentalized on the basis of applications of the nanomaterials. It can be concluded that the level of activities in this area is expanding owing to the emergence of more published works since the beginning of 2010. However, in comparison with research outputs from other developing African countries such as South Africa and Egypt, activities in green nanotechnology are still at low ebb in Nigeria. Issues that are contributory to the slow pace were identified and appropriate solutions in terms of improved funding of education, enactment of national policy on nanotechnology, curriculum development, international cooperation as well as human resource development among others were discussed.

show abstract

Biosynthesis, characterization, and antimicrobial effect of silver nanoparticles obtained using Lavandula × intermedia

Cited by 36 publications

References 36 publications

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Efficient Sonogashira and A³ coupling reactions catalyzed by biosynthesized magnetic Fe₃O₄@Ni nanoparticles from Euphorbia maculata extract

Green Nanotechnology in Nigeria: The Research Landscape, Challenges and Prospects

Contact Info

Product

Resources

About

Biosynthesis, characterization, and antimicrobial effect of silver nanoparticles obtained using Lavandula × intermedia

Cited by 36 publications

References 36 publications

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Evaluating the Antibacterial Activity of MgO Nanoparticles Synthesized from Aqueous Leaf Extract

Efficient Sonogashira and A3 coupling reactions catalyzed by biosynthesized magnetic Fe3O4@Ni nanoparticles from Euphorbia maculata extract

Green Nanotechnology in Nigeria: The Research Landscape, Challenges and Prospects

Contact Info

Product

Resources

About

Efficient Sonogashira and A³ coupling reactions catalyzed by biosynthesized magnetic Fe₃O₄@Ni nanoparticles from Euphorbia maculata extract