An eco-friendly plant-mediated synthesis of silver nanoparticles: Characterization, pharmaceutical and biomedical applications

Alomar, Taghrid S.; AlMasoud, Najla; Awad, Manal A.; El‐Tohamy, Maha F.; Soliman, Dina A.

doi:10.1016/j.matchemphys.2020.123007

Cited by 77 publications

(37 citation statements)

References 33 publications

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“…Further, the TEM image of PA-AgNPs indicated smaller particles without agglomeration due to the phyto-molecules capping on the surface of the nanoparticle. The above findings followed earlier reports where plant extract was employed in synthesis of AgNPs [ 36 , 37 ]. Thus, the synthesized AgNPs were found to depend upon the presence of secondary metabolites, such as phenolic compounds, flavonoids, steroids, tannins, and others, indicating that they might have played a vital role in the synthesis of AgNPs.…”

Section: Resultssupporting

confidence: 89%

Efficacy of Antimicrobial and Larvicidal Activities of Green Synthesized Silver Nanoparticles Using Leaf Extract of Plumbago auriculata Lam

Lakshmanan

Sathiyaseelan

Altemimi

et al. 2020

Plants

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This work reports the synthesis of silver nanoparticles (AgNPs) using aqueous extract of Plumbago auriculata, and evaluates their antibacterial and larvicidal activities. The synthesized silver nanoparticles were characterized by various spectroscopy techniques, such as FTIR, XRD, TEM, EDX, Zeta potential, and DLS. The synthesized AgNPs exhibited significant antibacterial activity against Gram-positive and Gram-negative bacteria, such as Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae. Furthermore, synthesized nanoparticles inhibited the fourth instars larvae of Aedes aegypti and Culex quinquefasciatus at the concentration of 45.1 and 41.1 µg/mL respectively. Results of dose-dependent studies showed that synthesized nanoparticles were also effective at low concentrations. Molecular docking studies performed with the salivary protein and odorant-binding protein of Aedes aegypti and Culex quinquefasciatus demonstrated that the naphthoquinone compound plumbagin exhibited reliable binding affinity towards the two enzymes. The findings thus reveal that the plant extract and its nanoparticles can be a better alternative to available chemicals to control mosquitos.

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Section: Resultssupporting

confidence: 89%

Efficacy of Antimicrobial and Larvicidal Activities of Green Synthesized Silver Nanoparticles Using Leaf Extract of Plumbago auriculata Lam

Lakshmanan

Sathiyaseelan

Altemimi

et al. 2020

Plants

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“…Green synthesis of nanoparticle is a bottom-up approach where nanoparticles were generated in an environment friendly way. In recent years tremendous number of research papers have been published in this topic and several recent reviews have focused on the various aspects of green synthesis of silver nanoparticles such as Tarannum et al, [12] Rafique et al, [14] Patil et al [15] and Alomor et al [16] In the following section green synthesis of silver nanoparticles by various plant phytochemicals and microorganisms have been discussed as these are the two most common methods and majority of the silver nanoparticle/ nanocomposites based dye degradation catalyst are prepared by these two methods. Advantages of green synthesized silver nanoparticle/ nanocomposites are (i) no need for using toxic chemicals/ organic solvents etc.…”

Section: Green Synthesis Of Silver Nanoparticles/nanocompositesmentioning

confidence: 99%

Biofabricated Silver Nanoparticles and Nanocomposites as Green Catalyst to Mitigate Dye Pollution in Water‐A Review

Kalita

Jain

2021

ChemistrySelect

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Synthetic dyes are one of the major classes of pollutant released in the environment by industries such as textile, paper, leather, rubber, cosmetics, pharmaceutical etc. They are known carcinogen and extremely hazardous to human, plant and aquatic life. Conventional chemical, physical and biological methods used for treatment of industrial effluent are costly, time-consuming and produces secondary waste. Silver nanoparticle and nanocomposite-based catalyst are very effective in decomposition of dyes due to their high surface area-tovolume ratio, stability and biocompatibility. The degradation reaction takes place in presence of light (photocatalytic) or in presence of a reagent such as NaBH 4 or H 2 O 2 .Of various methods of silver nanoparticle/nanocomposite synthesis, green synthesis has been quite popular in recent times due to ease in synthesis and sustainability factor. In this review, current state of knowledge about application of green synthesized silver nanoparticles /nanocomposites in degradation of synthetic dyes and other organic pollutant have been summarized. Moreover, the article also emphasizes on the mechanism of degradation, the kinetic parameters and optimum treatment conditions.

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“…The functional groups contributing to the conversion of metal ions into nanoparticles are ketones, carboxyl, alcohols, amines, sulfhydryl, and aldehydes, and the presence of any of these groups in any biological compound will demonstrate the success of the conversion process [ 52 ]. In addition, many studies have been conducted to produce MNPs using plant materials such as Eucalyptus globulus [ 26 ], Peganum harmala [ 53 ], Lawsonia inermis [ 54 ], Azadirachta indica [ 55 ], Crocus sativus [ 56 ] and Piper longum [ 57 ].…”

Section: Green Synthesis Of Metallic Nanoparticles: a Reliable Plant Route—technique For A Cleaner Futurementioning

confidence: 99%

Toward a Better Understanding of Metal Nanoparticles, a Novel Strategy from Eucalyptus Plants

Sawalha

Abiri

Sanusi

et al. 2021

Plants

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Nanotechnology is a promising tool that has opened the doors of improvement to the quality of human’s lives through its potential in numerous technological aspects. Green chemistry of nanoscale materials (1–100 nm) is as an effective and sustainable strategy to manufacture homogeneous nanoparticles (NPs) with unique properties, thus making the synthesis of green NPs, especially metal nanoparticles (MNPs), the scientist’s core theme. Researchers have tested different organisms to manufacture MNPs and the results of experiments confirmed that plants tend to be the ideal candidate amongst all entities and are suitable to synthesize a wide variety of MNPs. Natural and cultivated Eucalyptus forests are among woody plants used for landscape beautification and as forest products. The present review has been written to reflect the efficacious role of Eucalyptus in the synthesis of MNPs. To better understand this, the route of extracting MNPs from plants, in general, and Eucalyptus, in particular, are discussed. Furthermore, the crucial factors influencing the process of MNP synthesis from Eucalyptus as well as their characterization and recent applications are highlighted. Information gathered in this review is useful to build a basis for new prospective research ideas on how to exploit this woody species in the production of MNPs. Nevertheless, there is a necessity to feed the scientific field with further investigations on wider applications of Eucalyptus-derived MNPs.

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An eco-friendly plant-mediated synthesis of silver nanoparticles: Characterization, pharmaceutical and biomedical applications

Cited by 77 publications

References 33 publications

Efficacy of Antimicrobial and Larvicidal Activities of Green Synthesized Silver Nanoparticles Using Leaf Extract of Plumbago auriculata Lam

Efficacy of Antimicrobial and Larvicidal Activities of Green Synthesized Silver Nanoparticles Using Leaf Extract of Plumbago auriculata Lam

Biofabricated Silver Nanoparticles and Nanocomposites as Green Catalyst to Mitigate Dye Pollution in Water‐A Review

Toward a Better Understanding of Metal Nanoparticles, a Novel Strategy from Eucalyptus Plants

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