Plant mediated green synthesis and antibacterial activity of silver nanoparticles using Emblica officinalis fruit extract

Ramesh, P.; Kokila, T.; Geetha, D.

doi:10.1016/j.saa.2015.01.062

Cited by 219 publications

(75 citation statements)

References 24 publications

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“…The E. uniflora seed extract percent of inhibition was near to the standard. The previous study reveals that, Helicteres isora root extract AgNPs showed good antioxidant activity as compared to standard butylated hydroxytoluene by 20 .…”

Section: Antioxidant Activity Of Agnpsmentioning

confidence: 92%

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Novel Biogenic Synthesis of Agnps From Seed Extract of Eugenia Uniflora L.: In Vitro Assessment of Their Antioxidant, Antimicrobial and Cytotoxic Potential

Dugganaboyana¹,

Sharanya²,

Kumar³

et al. 2017

Int. Res. J. Pharm.

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Here, we explored the medicinal uses of the novel biogenic silver nanoparticles of Eugenia uniflora L. (E. uniflora) seed extract as a cost effective, eco-friendly, reducing and stabilizing compounds. This study describes the synthesis of silver nanoparticles from Eugenia uniflora L. (E. uniflora) seed extract and their antioxidant, antibacterial and cytotoxic potential. Biosynthesis of AgNPs was monitored by UV-visible spectroscopy which revealed intense surface plasmon resonance bands at 447 nm and X-ray diffraction were employed to identify various functional groups and crystalline nature of AgNPs. Scanning electron microscopy studies demonstrated that synthesized particles were crystalline in nature with average size of 78-100nm. In vitro antioxidant effects were analyzed by butylated hydroxytoluene (BHT)) and 2,2-diphenyl-1-picrylhydrazyl (DPPH), which exhibited antioxidant activity there in the particles could scavenges the stable free radical DPPH of 75% to that o positive control BHT. The value of 50% inhibition concentration (IC50) of Standard BHT is 65.55 and E. uniflora is 38.63µg/ml. The antibacterial activity of green AgNPs displayed better zone of inhibition against selected human pathogens. The present study also investigated the toxicity effect of biogenic AgNPs against human prostate cancer cells (PC-3) and the inhibitory concentrations (IC50) were found to be 6.25μg/ml, respectively. It could be concluded that E. uniflora seed extract AgNPs can be used efficiently for potential antioxidant, antibacterial and cytotoxic potential AgNPs with potent biomedical applications.

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Section: Antioxidant Activity Of Agnpsmentioning

confidence: 92%

“…Various concentrations (20,40,60, 80 and 100 µg/ml) of AgNPs and standard butylated hydroxytoluene (BHT) were taken in different test tubes. In the above samples, 1 mL of freshly prepared DPPH (0.1 mM) dissolved in methanol was added and vortexed thoroughly.…”

Section: In Vitro Antioxidant Assay Dpph Free Radical Scavenging Assaymentioning

confidence: 99%

Novel Biogenic Synthesis of Agnps From Seed Extract of Eugenia Uniflora L.: In Vitro Assessment of Their Antioxidant, Antimicrobial and Cytotoxic Potential

Dugganaboyana¹,

Sharanya²,

Kumar³

et al. 2017

Int. Res. J. Pharm.

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“…Numerous reports are available on the synthesis of AgNPs using fruit extract as environment friendly substitutes to chemical methods. The instant green synthesis of silver nanoparticles using Terminalia chebula fruit extract 21 , Dillenia indica fruit extract 22 , Solanum lycopersicums 23 and Emblica officinalis 24 were confirmed by the formation of brown colour.…”

Section: Fig 2: Absorption Spectrum Of Silver Nanobioconjugates Ofmentioning

confidence: 94%

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2016

IJPSR

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ABSTRACT:The seeds of Vitis vinifera have been shown to have antioxidant, anticancer and antimicrobial properties due to the presence of rich bioactive phenolic components like resveratrol. The research deals with the synthesis of silver nanobioconjugates from the methanolic extract of grape seeds and the pure compound resveratrol. The presence of resveratrol was confirmed by HPLC analysis in methanolic extract of various parts of grape fruits such as skin, pulp and seeds of two varieties (pink and black). As higher amount of resveratrol was present in the seed extract of pink grapes, it was selected for the silver nanobioconjugate synthesis. Various conditions were applied to influence the rapid reduction of Ag + to Ag ο , such as microwave heating, water bath heating, sunlight exposure and incubation at 37 ο C for nanobioconjugate synthesis. The reduction of silver ions was confirmed by color changes, adsorption spectroscopy (280-800nm) and percentage yield. Among the four different methods, sunlight exposure proved to be rapid in the synthesis and the yield of nanobioconjugates was also high. Therefore, this method was chosen for the synthesis of silver nanobioconjugates using resveratrol. The bioactivity of the synthesized silver nanoconjugates were also evaluated through antimicrobial activity. The results showed that the resveratrol in grape seeds extract can act as good reductant and stabilizer for the silver nanobioconjugate synthesis, which also exhibits potent bioactivity.

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“…The use of fruit extracts of plants is an appropriate candidate for this purposes. Several papers on the synthesis of Ag NPs using the extract of fruits such as Terminalia chebula, 46 Solanum trilobatum, 47 Dillenia indica, 48 Solanum lycopersicums, 49 Tanacetum vulgare, 50 Crataegus douglasii, 51 Emblica Officinalis, 52 and Kiwifruit 53 have been reported in the literatures.…”

Section: Introductionmentioning

confidence: 99%

Green Biosynthesis of Spherical Silver Nanoparticles by Using Date Palm (Phoenix Dactylifera) Fruit Extract and Study of Their Antibacterial and Catalytic Activities

Farhadi

Ajerloo

Mohammadi

2017

ACSi

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In this work, we have synthesized spherical silver nanoparticles (Ag NPs) by a low-cost, rapid, simple and ecofriendly approach using Date palm fruit extract as a novel natural reducing and stabilizing agent. The product was characterized by UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), energy-dispersive X-ray (EDX) spectroscopy and Zeta potential measurements. The reaction conditions including time, content of reducing agent and silver nitrate, temperature and pH were investigated. The optimum yield of Ag NPs was obtained when 10 mM of silver nitrate was reacted with Date fruit extract at pH 11 and heated it to 55 °C within 10 minutes. The elemental and crystalline nature of Ag NPs were confirmed from EDX and XRD analysis. SEM and TEM images showed that the Ag NPs were spherical and with sizes in the range of 25-60 nm. On the base of FT-IR analysis, it can be stated that the functional groups present in bio-molecules of Date fruits are responsible for the reduction and stabilization of Ag NPs, respectively. The Ag NPs showed good antibacterial activity against a few human pathogenic bacteria. The catalytic activity of the Ag NPs for rapid and efficient reduction of toxic nitro compounds into less toxic corresponding amines by using NaBH 4 was also investigated.

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Plant mediated green synthesis and antibacterial activity of silver nanoparticles using Emblica officinalis fruit extract

Cited by 219 publications

References 24 publications

Novel Biogenic Synthesis of Agnps From Seed Extract of Eugenia Uniflora L.: In Vitro Assessment of Their Antioxidant, Antimicrobial and Cytotoxic Potential

Novel Biogenic Synthesis of Agnps From Seed Extract of Eugenia Uniflora L.: In Vitro Assessment of Their Antioxidant, Antimicrobial and Cytotoxic Potential

Untitled

Green Biosynthesis of Spherical Silver Nanoparticles by Using Date Palm (Phoenix Dactylifera) Fruit Extract and Study of Their Antibacterial and Catalytic Activities

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