Green fabrication, characterization of silver nanoparticles using aqueous leaf extract of Ocimum americanum (Hoary Basil) and investigation of its in vitro antibacterial, antioxidant, anticancer and photocatalytic reduction

Manikandan, Dinesh Babu; Sridhar, Arun; Sekar, Rajkumar Krishnasamy; Balaji, Perumalsamy; Veeran, Srinivasan; Arumugam, Manohar; Parthiban, K.; Ramasamy, Thirumurugan

doi:10.1016/j.jece.2020.104845

Cited by 55 publications

(20 citation statements)

References 91 publications

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“…The anti-oxidant activity was examined by H 2 O 2 and DPPH. Silver nanoparticles showed excellent photocatalytic degradation of Eosin dye [193]. By utilizing Clerodendrum inerme as both a capping and reducing agent, Khan, Shakeel Ahmad, et al, synthesized silver nanoparticles and evaluated them for various biological activities, e.g., anti-mycotic, i.e., A. niger (ZOI = 17 mm) and A. flavus (ZOI = 22 mm), and antibacterial, i.e., B. subtilis (ZOI = 15 mm) and S. aureus (ZOI = 14 mm), activities.…”

Section: Synthesis Of Silver Nanoparticles Using Leaf Extracts: (2019-2020)mentioning

confidence: 99%

Green Synthesis of Metal and Metal Oxide Nanoparticles Using Different Plants’ Parts for Antimicrobial Activity and Anticancer Activity: A Review Article

et al. 2021

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Nanotechnology emerged as a scientific innovation in the 21st century. Metallic nanoparticles (metal or metal oxide nanoparticles) have attained remarkable popularity due to their interesting biological, physical, chemical, magnetic, and optical properties. Metal-based nanoparticles can be prepared by utilizing different biological, physical, and chemical methods. The biological method is preferred as it provides a green, simple, facile, ecofriendly, rapid, and cost-effective route for the green synthesis of nanoparticles. Plants have complex phytochemical constituents such as carbohydrates, amino acids, phenolics, flavonoids, terpenoids, and proteins, which can behave as reducing and stabilizing agents. However, the mechanism of green synthesis by using plants is still highly debatable. In this report, we summarized basic principles or mechanisms of green synthesis especially for metal or metal oxide (i.e., ZnO, Au, Ag, and TiO2, Fe, Fe2O3, Cu, CuO, Co) nanoparticles. Finally, we explored the medical applications of plant-based nanoparticles in terms of antibacterial, antifungal, and anticancer activity.

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Section: Synthesis Of Silver Nanoparticles Using Leaf Extracts: (2019-2020)mentioning

confidence: 99%

Green Synthesis of Metal and Metal Oxide Nanoparticles Using Different Plants’ Parts for Antimicrobial Activity and Anticancer Activity: A Review Article

et al. 2021

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“…(Ali et al 2021 ; Pandey et al 2014 ; Purushothaman et al 2018 ; Santos et al 2021 ; Singh and Chaudhuri 2018 ; Singh et al 2015 , 2016 ), whereas essential oil is valued in aromatherapy (Li and Chang 2016 ). On the other hand, silver and copper nanoparticles synthesized using aqueous leaf extract of O. americanum have shown therapeutic properties, including in vitro antibacterial, anticancer and catalytic properties, which can be used for photocatalytic dye degradation (Manikandan et al 2021a , b ). Recently, a molecular docking study showed that apigenin, oleanolic acid and ursolic acid from O .…”

Section: Introductionmentioning

confidence: 99%

A glance at the chemodiversity of Ocimum species: Trends, implications, and strategies for the quality and yield improvement of essential oil

2021

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Ocimum species represent commercially important medicinal and aromatic plants. The essential oil biosynthesized by Ocimum species is enriched with specialized metabolites specifically, terpenoids and phenylpropanoids. Interestingly, various Ocimum species are known to exhibit diverse chemical profiles, and this chemical diversity has been at the center of many studies to identify commercially important chemotypes. Here, we present various chemotypes from the Ocimum species and emphasize trends, implications, and strategies for the quality and yield improvement of essential oil. Globally, many Ocimum species have been analyzed for their essential oil composition in over 50 countries. Asia represents the highest number of chemotypes, followed by Africa, South America, and Europe. Ocimum basilicum L. has been the most widespread and well-studied species, followed by O . gratissimum L., O . tenuiflorum L., O . canum Sims, O . americanum and O . kilimandscharicum Gürke. Moreover, various molecular reasons, benefits, adverse health effects and mechanisms behind this vast chemodiversity have been discussed. Different strategies of plant breeding, metabolic engineering, transgenic, and tissue-culture, along with anatomical modifications, are surveyed to enhance specific chemotypic profiles and essential oil yield in numerous Ocimum species. Consequently, chemical characterization of the essential oil obtained from Ocimum species has become indispensable for its proper utilization . The present chemodiversity knowledge from Ocimum species will help to exploit various applications in the industrial, agriculture, biopharmaceutical, and food sectors. Supplementary Information The online version contains supplementary material available at 10.1007/s11101-021-09767-z.

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“…According to the Disc diffusion method and colony count procedures, both Gram-positive and Gram-negative bacteria were reduced significantly [ 52 ]. Manikandan et al (2021) assessed the antibacterial property of nano-composites containing green synthesized silver NPs on both Gram-negative and Gram-positive bacteria and the outcomes showed that its antimicrobial effect on S. aureus bacteria was greater than the effect on E. coli with it reacting in a dose-dependent manner in both cases [ 53 ].…”

Section: Silver Nanoparticlesmentioning

confidence: 99%

Migration of Various Nanoparticles into Food Samples: A Review

Paidari

Tahergorabi

Anari

et al. 2021

Foods

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Nanotechnology has provided new opportunities for the food industry with its applications in food packaging. The addition of nanoparticles, such as clay, silver and copper, can improve the mechanical and antimicrobial properties of food packaging. However, nanoparticles may have an adverse impact on human health. This has led to legislative and regulatory concerns. The inhibitory effects of nano packaging on different microorganisms, such as Salmonella, E. coli, and molds, have been studied. Nanoparticles, like other materials, may have a diverse set of properties that need to be determined. In this review, different features of silver, clay and copper nanoparticles, such as their anti-microbial, cell toxicity, genetic toxicity, mechanical properties, and migration, are critically evaluated in the case of food packaging. Specifically, the viewpoints of WHO, FDA, and ESFA, concerning the nano-silver application in food packaging, are discussed as well.

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Green fabrication, characterization of silver nanoparticles using aqueous leaf extract of Ocimum americanum (Hoary Basil) and investigation of its in vitro antibacterial, antioxidant, anticancer and photocatalytic reduction

Cited by 55 publications

References 91 publications

Green Synthesis of Metal and Metal Oxide Nanoparticles Using Different Plants’ Parts for Antimicrobial Activity and Anticancer Activity: A Review Article

Green Synthesis of Metal and Metal Oxide Nanoparticles Using Different Plants’ Parts for Antimicrobial Activity and Anticancer Activity: A Review Article

A glance at the chemodiversity of Ocimum species: Trends, implications, and strategies for the quality and yield improvement of essential oil

Migration of Various Nanoparticles into Food Samples: A Review

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