Sunlight-Mediated Green Synthesis of Silver Nanoparticles Using the Berries of Ribes rubrum (Red Currants): Characterisation and Evaluation of Their Antifungal and Antibacterial Activities

Rizwana, Humaira; Alwahibi, Mona S.; Al-Judaie, Rawan A.; Aldehaish, Horiah A.; Alsaggabi, Noura S.

doi:10.3390/molecules27072186

Cited by 52 publications

(26 citation statements)

References 105 publications

(150 reference statements)

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“…coli and staphylococcus. aureus in the current study has been experimentally proven in several recent studies (Rizwana et al, 2022;Attallah et al, 2022;Bhat et al, 2022).…”

Section: Antibacterial Activity Of Silver Nanoparticlessupporting

confidence: 52%

Green Synthesis of Silver Nanoparticles Using Nigella sativa Callus and Cellular Suspension Cultures with Different pH Values

Al-Allaf¹,

ALbaker²

2023

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The current study included an extensive protocol for the first time globally. This protocol was concerned with the green synthesis of silver nanoparticles (AgNPs) from Nigella sativa callus and cellular suspended cultures. The results confirmed the success of the process of green synthesis of AgNPs from Nigella sativa callus by the color change in the reaction solution from colorless to brown and reddish-brown as a result of the reduction of Ag ions in the extract after addition of AgNO 3 solution (1:1 v/v). UV-Vis spectroscopy was used to initially prove the existence of AgNPs, which showed an absorption peak ranging between (420-440 nm) caused by the phenomenon of Surface Plasmon Resonance (SPR) of AgNPs. (SEM) showed nanoparticle objects ranging from (18.341 -40.932) nm for standard extracts and (17.261 -29.13) nm for suspended cultures extracts. (EDX) proved the success of producing AgNPs in different proportions depending on the type of tissue cultures used and the difference in the pH value of the extracts (6, 9, 12), as the highest % of AgNPs production reached 4.46% in suspended cultures extracts from pH 12, followed by callus extracts, which reached 4.12% at pH 12. biologically prepared AgNPs proved their effectiveness in inhibiting the growth of Gram + and Grambacteria, as the inhibition zone ranged (19-35 mm) depending on the type of extract and the degree of acidity (pH) applied to the extract.

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“…coli and staphylococcus. aureus in the current study has been experimentally proven in several recent studies (Rizwana et al, 2022;Attallah et al, 2022;Bhat et al, 2022).…”

Section: Antibacterial Activity Of Silver Nanoparticlessupporting

confidence: 52%

Green Synthesis of Silver Nanoparticles Using Nigella sativa Callus and Cellular Suspension Cultures with Different pH Values

Al-Allaf¹,

ALbaker²

2023

RJS

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“…Pathogenic bacteria cause a number of diseases of valuable crops and reduce their productivity [ 58 ]. For instance, X. axonopodis causes citrus canker and bacterial leaf spots in the member species of family Rosaceae [ 4 ], and lead to a compromised quality and quantity of landscape plants.…”

Section: Discussionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles Using Euphorbia wallichii Leaf Extract: Its Antibacterial Action against Citrus Canker Causal Agent and Antioxidant Potential

et al. 2022

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Biologically synthesized silver nanoparticles are emerging as attractive alternatives to chemical pesticides due to the ease of their synthesis, safety and antimicrobial activities in lower possible concentrations. In the present study, we have synthesized silver nanoparticles (AgNPs) using the aqueous extract of the medicinal plant Euphorbia wallichii and tested them against the plant pathogenic bacterium Xanthomonas axonopodis, the causative agent of citrus canker, via an in vitro experiment. The synthesized silver nanoparticles were characterized by techniques such as UV-Vis spectroscopy, Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction analysis and transmission electron microscopy. Moreover, the plant species were investigated for phenolics, flavonoids and antioxidant activity. The antioxidant potential of the extract was determined against a DPPH radical. The extract was also evaluated for phenolic compounds using the HPLC technique. The results confirmed the synthesis of centered cubic, spherical-shaped and crystalline nanoparticles by employing standard characterization techniques. A qualitative and quantitative phytochemical analysis revealed the presence of phenolics (41.52 mg GAE/g), flavonoids (14.2 mg QE/g) and other metabolites of medicinal importance. Different concentrations (1000 µg/mL to 15.62 µg/mL—2 fold dilutions) of AgNPs and plant extract (PE) alone, and both in combination (AgNPs-PE), exhibited a differential inhibition of X. axanopodis in a high throughput antibacterial assay. Overall, AgNPs-PE was superior in terms of displaying significant antibacterial activity, followed by AgNPs alone. An appreciable antioxidant potential was recorded as well. The observed antibacterial and antioxidant potential may be attributed to eight phenolic compounds identified in the extract. The Euphorbia wallichii leaf-extract-induced synthesized AgNPs exhibited strong antibacterial activity against X. axanopodis, which could be exploited as effective alternative preparations against citrus canker in planta in a controlled environment. In addition, as a good source of phenolic compounds, the plant could be further exploited for potent antioxidants.

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“…Plants are ubiquitous in nature, and many of them have yet to be fully studied for their great health benefits. Plants contain a wealth of essential phytochemicals with therapeutic and medical capabilities (Rizwana et al, 2022).…”

Section: Phytochemical Testsmentioning

confidence: 99%

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

et al. 2022

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Nanotechnology is a fast-expanding area with a wide range of applications in science, engineering, health, pharmacy, and other fields. Among many techniques that are employed toward the production of nanoparticles, synthesis using green technologies is the simplest and environment friendly. Nanoparticles produced from plant extracts have become a very popular subject of study in recent decades due to their diverse advantages such as low-cost synthesis, product stability, and ecofriendly protocols. These merits have prompted the development of nanoparticles from a variety of sources, including bacteria, fungi, algae, proteins, enzymes, etc., allowing for large-scale production with minimal contamination. However, nanoparticles obtained from plant extracts and phytochemicals exhibit greater reduction and stabilization and hence have proven the diversity of properties, like catalyst/photocatalyst, magnetic, antibacterial, cytotoxicity, circulating tumor deoxy ribo nucleic acid (CT-DNA) binding, gas sensing, etc. In the current scenario, nanoparticles can also play a critical role in cleaning wastewater and making it viable for a variety of operations. Nano-sized photocatalysts have a great scope toward the removal of large pollutants like organic dyes, heavy metals, and pesticides in an eco-friendly and sustainable manner from industrial effluents. Thus, in this review article, we discuss the synthesis of several metal nanoparticles using diverse plant extracts, as well as their characterization via techniques like UV–vis (ultraviolet–visible), XRD (X-ray diffraction), SEM (scanning electron microscopy), TEM (transmission electron microscopy), FTIR (Fourier transform infrared spectroscopy), etc., and catalytic activity on various hazardous systems.

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Sunlight-Mediated Green Synthesis of Silver Nanoparticles Using the Berries of Ribes rubrum (Red Currants): Characterisation and Evaluation of Their Antifungal and Antibacterial Activities

Cited by 52 publications

References 105 publications

Green Synthesis of Silver Nanoparticles Using Nigella sativa Callus and Cellular Suspension Cultures with Different pH Values

Green Synthesis of Silver Nanoparticles Using Nigella sativa Callus and Cellular Suspension Cultures with Different pH Values

Green Synthesis of Silver Nanoparticles Using Euphorbia wallichii Leaf Extract: Its Antibacterial Action against Citrus Canker Causal Agent and Antioxidant Potential

Photocatalytic Activity Induced by Metal Nanoparticles Synthesized by Sustainable Approaches: A Comprehensive Review

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