Synthesis of metallic nanoparticles in reverse micelles in the presence of quercetin

Егорова, Елена; Ревина, А. А.

doi:10.1016/s0927-7757(99)00513-0

Cited by 189 publications

(77 citation statements)

References 18 publications

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“…2 and 3). Garlic and ginger extracts are rich source of flavonoids and phenolics which have an essential role in the reduction process for synthesis of metal nanoparticles [35,36]. Thus, the high flavonoid and phenolics contents in garlic and ginger water extracts revealed in the phytochemical analysis strongly support the potential of garlic and ginger to bioreduce Ag + , Zn 2+ , Cu 2+ and Fe 3+ ions to AgNPs, CuNPs, FeNPs and ZnNPs.…”

Section: Uv-vis Spectroscopymentioning

confidence: 99%

Eco-friendly synthesis of metal nanoparticles using ginger and garlic extracts as biocompatible novel antioxidant and antimicrobial agents

et al. 2018

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Ginger and garlic plants were used for the preparation of water and ethanolic extracts. The silver, copper, iron and zinc nanoparticles were eco-friendly synthesized using ginger and garlic extracts and their antioxidant and antibacterial activities were evaluated. The growth of nanoparticles was complemented with characterization using TEM and UV-Vis spectroscopic analysis. Transmission electron microscopy revealed the presence of mono-dispersed metals nanoparticles and silver nanoparticles of ginger have the smallest particle size around 10.10-18.33 nm. The investigated samples were evaluated as antibacterial agents against Staphylococcus aureus, Klebsiella pneumoniae, Candida albicans, Bacillus subtilis, Erwinia carotovora and Proteus vulgaris and as antifungal agents against C. albicans. The results of antimicrobial tests indicate that these nanoparticles possess significant activities compared to the results obtained by antibiotic standard. In addition, the total polyphenols, fractionation of phenols, flavonoids by high-performance liquid chromatography systems and antioxidant activity were evaluated. Graphical AbstractComparison of the DPPH and ABTS antioxidant results.

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Section: Uv-vis Spectroscopymentioning

confidence: 99%

Eco-friendly synthesis of metal nanoparticles using ginger and garlic extracts as biocompatible novel antioxidant and antimicrobial agents

et al. 2018

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“…Colloidal solutions of metal nanoparticles were prepared by modifying synthesis method presented in [1].…”

Section: Preparation Of Samplesmentioning

confidence: 99%

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Kaminskienė¹,

Prosyčevas²,

Stonkutė

et al. 2013

Acta Phys. Pol. A

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The surface plasmon resonance evaluation of colloidal metal nanoparticles, synthesized in organic medium, is reported in this work. Metal salts were dissolved in dioxane/AOT solution and reduced by hydrazine hydrate under vigorous stirring. Optical properties of obtained colloidal nanoparticles were investigated by UV VIS spectroscopy. Theoretical predictions of optical properties of metal nanoparticles were made by means of the Mie theory and the Drude free-electron model. Geometrical parameters and distribution of metal nanoparticles in colloidal solutions were characterized by atomic force microscopy. The results show that Ag, Cu, and Co nanoparticles, synthesized in organic medium distinguish plasmonic properties. Surface plasmon resonance bands were obtained in all cases: Ag at 430 nm, Cu at 570 nm, Co at 350 nm (SPR1) and 430 nm (SPR2). Comparing theoretical evaluation of nanoparticles size with atomic force microscopy analysis, we can assume that our calculations are accurate. It was found that dominating nanoparticles diameter in Ag colloidal solution is ≈ 150 nm, in Cu colloidal solution is ≈ 70 80 nm and in Co colloidal solution is ≈ 150 nm. It can be concluded that nanoparticles with enhanced plasmonic properties synthesized in organic medium can be widely used in order to increase e ciency of various optical elements.

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“…Attention has been paid to synthesise a variety of nanoparticles with desired properties either by modification of existing procedures or by development of new methods [1]. Gold nanoparticles (GNP) are the most stable metal nanoparticles [2].…”

Section: Introductionmentioning

confidence: 99%

Characterisation of gold nanoparticles synthesised by leaf and seed extract ofSyzygium cuminiL.

Kumar

Yadav

2012

Journal of Experimental Nanoscience

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Here, Syzygium cumini leaf extract (LE) and seed extract (SE) were explored for the synthesis of gold nanoparticles (GNP). LE and SE as well as their polar (water) fractions showed potential for GNP synthesis. Comparative synthesis kinetics and morphological characterisation studies revealed the synthesis of smaller sized GNP by LE than SE. Only polar (water) fractions showed potential for GNP synthesis, which are smaller in size compared to their respective extracts. SE contained more polyphenols and biochemical constituents than LE and therefore, showed higher synthesis rate and bigger sized GNP. Atomic force microscope and scanning electron microscope analysis indicated that both extracts and their fractions catalysed the synthesis of spherical GNP. The average size of GNP synthesised by LE, leaf water fraction (LWF), SE and seed water fraction (SWF) were 24, 23, 35 and 32 nm, respectively. Fourier transform infrared analysis identified the biomolecules involved in the synthesis and stability of GNP. This study documented the potential of S. cumini for the synthesis of GNP in addition to silver nanoparticles (SNP). However, nature and types of polyphenols involved in GNP synthesis seem to be different from that involved in SNP synthesis. This might be the possible reason for smaller sized GNP that SNP.

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Synthesis of metallic nanoparticles in reverse micelles in the presence of quercetin

Cited by 189 publications

References 18 publications

Eco-friendly synthesis of metal nanoparticles using ginger and garlic extracts as biocompatible novel antioxidant and antimicrobial agents

Eco-friendly synthesis of metal nanoparticles using ginger and garlic extracts as biocompatible novel antioxidant and antimicrobial agents

Evaluation of Optical Properties of Ag, Cu, and Co Nanoparticles Synthesized in Organic Medium

Characterisation of gold nanoparticles synthesised by leaf and seed extract ofSyzygium cuminiL.

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