Green Synthesis of Silver Nanoparticles Using Seed Extract of Foeniculum vulgare and their Antibacterial Activity

Sulthana, R. Nigar; Rajanikanth, A.

doi:10.20546/ijcrbp.2018.507.010

Cited by 10 publications

(4 citation statements)

References 11 publications

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“…Tannins were found to play a key role in the reduction and capping of silver nanoparticles [24]. Other Water-soluble secondary metabolites, most likely proteins, were mainly responsible for the biosynthesis of silver nanoparticles as in Foeniculum vulgare [25].…”

Section: Concentration Of Plants Metabolites Reducing Agentsmentioning

confidence: 99%

Green synthesis of silver nanoparticles mediated by traditionally used medicinal plants in Sudan

2019

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Sudan has a tremendous wealth flora due to its unique geographical location and diverse climate. Vast records of plants and plants' secondary metabolites are reported to possess redox capacity and can be exploited for the biosynthesis of nanoparticles. Plant-mediated synthesis of silver nanoparticles is preferred due to their availability and their various metabolites. The present review explores the potentiality and diversity of biological activities of silver nanoparticles that originated from the combination of silver and phyto-constituents of mostly traditionally used Sudanese medicinal and aromatic plants. The green synthesis methods of silver nanoparticles mediated by more than 45 traditionally used medicinal plants are critically reviewed. In addition, parameters that affect the synthesis of plant-mediated silver nanoparticles, their characterization techniques and various biological activities are summarized and discussed. Thus, the study of green synthesis of silver nanoparticles and its applications can be extended to involve vast plant diversity of Sudan.

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Section: Concentration Of Plants Metabolites Reducing Agentsmentioning

confidence: 99%

Green synthesis of silver nanoparticles mediated by traditionally used medicinal plants in Sudan

2019

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“…As stated earlier, LFLE is a rich cocktail of diverse phytochemicals such as tannins, terpenoids, flavonoids, ketones, aldehydes, amides, and carboxylic acids that are assumed to donate electrons for reduction of Ag 1+ to Ag 0 ( Prabhu and Poulose, 2012 ; Srikar et al, 2016 ). Similarly, water-soluble plant metabolites, such as proteins, and reducing sugars were mainly responsible for the biosynthesis of the metal nanoparticles by Foeniculum vulgare and Dioscorea bulbifera ( Sulthana and Rajanikanth, 2018 ; Jamdade et al, 2019 ). Morphological features of the phytogenic nanoparticles were reported to be dependent on the concentrations of Azadirachta indica and Cassia auriculata L extracts ( Roy et al, 2017 ; Bhuvaneswari et al, 2019 ).…”

Section: Resultsmentioning

confidence: 99%

Leucophyllum frutescens mediated synthesis of silver and gold nanoparticles for catalytic dye degradation

et al. 2022

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The application of nanotechnology is gaining worldwide attention due to attractive physico-chemical and opto-electronic properties of nanoparticles that can be also employed for catalytic dye degradation. This study reports a phytogenic approach for fabrication of silver (AgNPs) and gold nanoparticles (AuNPs) using Leucophyllum frutescens (Berl.) I. M. Johnst (Scrophulariaceae) leaf extract (LFLE). Development of intense dark brown and purple color indicated the synthesis of AgNPs and AuNPs, respectively. Further characterization using UV-visible spectroscopy revealed sharp peak at 460 nm and 540 nm for AgNPs and AuNPs, respectively that were associated to their surface plasmon resonance. High resolution transmission electron microscope (HRTEM) revealed the spherical shape of the AgNPs, whereas anisotropic AuNPs were spherical, triangular and blunt ended hexagons. The majority of the spherical AgNPs and AuNPs were ∼50 ± 15 nm and ∼22 ± 20 nm, respectively. Various reaction parameters such as, metal salt concentration, temperature and concentration of the leaf extract were optimized. Maximum synthesis of AgNPs was obtained when 5 mM for AgNO3 reacted with 10% LFLE for 48 h at 50°C. Likewise, AuNPs synthesis was highest when 2 mM HAuCl4 reacted with 10% LFLE for 5 h at 30°C. Energy dispersive spectroscopy (EDS) showed phase purity of both the nanoparticles and confirmed elemental silver and gold in AgNPs and AuNPs, respectively. The average hydrodynamic particles size of AgNPs was 34.8 nm while AuNPs was 140.8 nm as revealed using dynamic light scattering (DLS) that might be due to agglomeration of smaller nanoparticles into larger clusters. ZETA potential of AgNPs and AuNPs were 0.67 mV and 5.70 mV, respectively. X-ray diffraction (XRD) analysis confirmed the crystallinity of the nanoparticles. Fourier transform infrared spectroscopy (FTIR) confirmed that various functional groups from the phytochemicals present in LFLE played a significant role in reduction and stabilization during the biogenic synthesis of the nanoparticles. The bioreduced AgNPs and AuNPs catalytically degraded Rhodamine B dye (RhB) in presence of UV-light with degradation rate constants of 0.0231 s−1 and 0.00831 s−1, respectively. RhB degradation followed a first order rate kinetics with 23.1 % and 31.7% degradation by AgNPs and AuNPs, respectively.

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“…To control this pathogen, the FNps were synthesized from Foeniculum vulgare seeds. There are reports on F. vulgare seed nanoparticles, showing their antibacterial and catalytic properties [18][19][20][21]. Thus, harnessing the beneficial effect of F. vulgare seeds, F. vulgare seed mediated FNps are synthesized to control the fungal pathogens in groundnut.…”

Section: Introductionmentioning

confidence: 99%

Engineered green nanoparticles interact withNigrospora oryzaeisolated from infected leaves ofArachis hypogaea

2022

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Oilseed crop diseases are a major concern around the world, particularly in India. The synthetic fungicides not only kill the pathogen, but they also harm the host plant and beneficial microbes and on continuous usage, they decrease the soil fertility. To overcome this problem, green nanotechnology has been a greater alternative with promising benefits. The green synthesized nanoparticles from the extract of various plant parts are an effective remedy for killing the pathogens without affecting the host plants and the environment. Hence, in our study silver nanoparticles were synthesized from Fennel seed (Foeniculum vulgare) extract. The synthesis of nanoparticles was confirmed using UV-vis, Fourier transform infrared, dynamic light scattering, zeta potential, and scanning electron microscopic analysis. The in vitro antifungal study was carried out and revealed that the nanoparticles had high efficacy against the isolated phytopathogen Nigrospora oryzae which causes tikka disease in Arachis hypogaea plants. Hence, F. vulgare seed nanoparticles can be used as an effective alternative to synthetic fungicides without causing any deleterious effect on soil microflora or the environment.

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Green Synthesis of Silver Nanoparticles Using Seed Extract of Foeniculum vulgare and their Antibacterial Activity

Cited by 10 publications

References 11 publications

Green synthesis of silver nanoparticles mediated by traditionally used medicinal plants in Sudan

Green synthesis of silver nanoparticles mediated by traditionally used medicinal plants in Sudan

Leucophyllum frutescens mediated synthesis of silver and gold nanoparticles for catalytic dye degradation

Engineered green nanoparticles interact withNigrospora oryzaeisolated from infected leaves ofArachis hypogaea

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