Switchgrass (&amp;lt;i&amp;gt;Panicum virgatum&amp;lt;/i&amp;gt;) Extract Mediated Green Synthesis of Silver Nanoparticles

Mason, Cynthia; Vivekanandhan, Singaravelu; Misra, Manjusri; Mohanty, Amar K.

doi:10.4236/wjnse.2012.22008

Cited by 79 publications

(39 citation statements)

References 32 publications

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“…The peak intensity decreased with further increase in the metal ion up to 60 and 80 mM. This decrease in peak intensity may be due to the formation of bigger NPs as a result of aggregation of small NPs [29]. The size of NPs did not change much from 1 mM (365.61 ± 42.12 nm) to 40 mM (352.06 ± 11.493 nm) metal ion concentration (Supplementary table ST1 ).…”

Section: Uv-visible and Morphological Characterization Of Mno Npsmentioning

confidence: 94%

Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol

et al. 2017

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Manganese oxide (MnO) NPs are widely used in contaminant sensing, drug delivery, data storage, catalysis and biomedical imaging. Green synthesis of NPs is important due to increased concern of environmental pollution. Green chemistry based synthesis of NPs is preferred due to its ecofriendly nature. In this study, MnO NPs of different sizes were synthesized in aqueous medium using clove, i.e., Syzygium aromaticum extract (CE) as reducing and stabilizing agents. These NPs were used for the electrochemical sensing of p-nitrophenol (PNP). The synthesis of MnO NPs was over in 30 min. MnO NPs of different sizes were obtained by varying metal ion concentration, metal ion volume ratio, CE concentration, CE volume ratio, and incubation temperature. Selectively, *4 nm MnO NPs were used for electrochemical sensing of paranitrophenol. The MnO NPs modified gold electrodes detected PNP with good sensitivity, 0.16 lA lM -1 cm 2 . The limit of PNP detection was 15.65 lM. The MnO NPs prepared using CE based green chemistry approach is useful for PNP sensing. These NPs can also be useful for various in vivo applications in which the NPs come in human contact.

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Section: Uv-visible and Morphological Characterization Of Mno Npsmentioning

confidence: 94%

Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol

et al. 2017

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“…The Plant extract was collected and stored at 4°C. Finally, the extract was used for the synthesis of AgNPs [11].…”

Section: Preparation Of Leaf Extractmentioning

confidence: 99%

Green synthesis and characterization of silver nanoparticles by leaf extracts of Cycas circinalis, Ficus amplissima, Commelina benghalensis and Lippia nodiflora

Johnson¹,

Prabu²

2015

Int Nano Lett

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Biosynthesis of nanoparticles is a kind of bottom-up approach where the main reaction occurring is reduction. Since silver nanoparticles (AgNPs) have been used for infection prevention in medical field, it is more relevant to reduce their size using ancient Indian herbal plants. This method is good in anti-microbial efficiency against bacteria, viruses and other microorganisms and hence clearly enhances the medicinal usage of AgNPs. This type of green biosynthesis of nanoparticles has received increasing attention due to the growing need to develop safe, cost-effective and environmental-friendly technologies for nano-materials synthesis. In the process of synthesizing AgNPs, we observed a rapid reduction of silver ions leading to the formation of stable crystalline AgNPs in the solution. Plant extracts from Cycas circinalis, Ficus amplissima, Commelina benghalensis and Lippia nodiflora were used for the synthesis of AgNPs from silver nitrate solution. AgNPs were characterized by different techniques.

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“…Green synthesis of AgNPs using plant extracts have been studied previously using several medicinal plants which includes Rhizophora mucronatas (Gnanadesigan et al 2011), Acalypha indica (Krishnaraj et al 2010), Phyllanthus emblica (Rosarin et al 2010), Panicum virgatum (Mason et al 2012), Piper nigrum (kumar et al 2014, Glycine max (Vivekanandhan et al 2009), Murraya Koengii (Christensen et al 2011), Rosa rugosa (Dubey et al 2010) and Camellia sinensis (Vilchis-Nestor et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of multifunctional silver nanoparticles using mangrove plant Excoecaria agallocha L. for its antibacterial, antioxidant and cytotoxic effects

Bhuvaneswari

Xavier

Arumugam³

2016

J Parasit Dis

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The current study describes a simple, rapid and eco-friendly method for the synthesis of silver nanoparticles (AgNPs) using Excoecaria agallocha (E. agallocha) leaf extract as stabilizer, bioreductant and capping agent. Synthesized AgNPs were characterized by UV-Visible spectroscopy (UV-Vis), X-ray diffraction (XRD), fourier transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDX). Generation of AgNPs was initially confirmed with the color change from yellow to dark brown which produces intense absorbance spectra at 440 nm in UV-Vis spectroscopy without any shifting of peaks. Further, XRD pattern confirms that the synthesized AgNPs was face centered cubic (fcc) crystalline in structure with an average size of 20 nm. On the other hand, FTIR spectrum reveals that the active metabolites like water soluble phenolic compounds, flavonoids, methylene groups, amides and carboxylate groups. These active biocompounds plays a vital role in the reduction of Ag ? into their nanoscale values, it also acts as a stabilizing and surface functionalization agent. FESEM micrographs of synthesized AgNPs shows spherical and hexagonal shaped well dispersed particles in the dimension ranging between 23 and 42 nm. EDAX confirms the presence of silver (Ag) as the major constituent element without any impurities; also substantiate the stability of generated AgNPs. The biomedical insights of nanoparticles (NPs) were assessed through radical scavenging and antibacterial properties. Additionally, synthesized AgNPs was also exhibits an excellent cytotoxic effect against human breast carcinoma cell lines (MCF-7). This study proves that synthesized AgNPs can be developed as a potential nano-drug formulation to combat pathogenic disease and also for the expansion of breast cancer therapy.

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Switchgrass (<i>Panicum virgatum</i>) Extract Mediated Green Synthesis of Silver Nanoparticles

Cited by 79 publications

References 32 publications

Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol

Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol

Green synthesis and characterization of silver nanoparticles by leaf extracts of Cycas circinalis, Ficus amplissima, Commelina benghalensis and Lippia nodiflora

Facile synthesis of multifunctional silver nanoparticles using mangrove plant Excoecaria agallocha L. for its antibacterial, antioxidant and cytotoxic effects

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