Biological synthesis of silver and gold nanoparticles using apiin as reducing agent

Kasthuri, Jayapalan; Veerapandian, Selvaraj; Rajendiran, Nagappan

doi:10.1016/j.colsurfb.2008.09.021

Cited by 504 publications

(222 citation statements)

References 29 publications

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“…This is similar to the surface plasmon vibrations with characteristic peaks of AgNPs prepared by chemical reduction (Kong & Jang, 2006). The frequency and width of the surface Plasmon absorption depends on the size and shape of the metal nanoparticles as well as on the dielectric constant of the metal itself and the surrounding medium ( Kasthuri et al, 2009 andSharmaet et al, 2009 Transmission electron microscopy (TEM) analysis, measurement were applied to characterize the nanoparticles size and morphology. TEM micrographs of representative silver nanoparticles synthesized by U. fasciata ethanol extract are shown in Plate 3.…”

Section: Characterization Of Agnps Synthesized By U Fasciata Uv-visimentioning

confidence: 99%

Potentiality of Silver Nanoparticles Prepared by Ulva fasciata as Anti-nephrotoxicity in Albino-Rats

et al. 2017

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T HE PRESENT study focused on the biosynthesis of silver nanoparticles using the ethanolic extract of the green alga Ulva fasciata (green algae). The synthesized silver nanoparticles were characterized by UV-Vis spectra, TEM (Transmission Electron Microscope) and FT-IR analysis. The absorption spectra of the formed AgNPs was observed at 350 nm, while the FT-IR spectrum revealed a presence of bands at about 2076.96 and 1840.72 cm -1. On the other hand, TEM analysis , exhibited spherical and rod shaped AgNPs with size range of 2 to 200 nm. The chemical constituents, fatty acids, alkaloids, phenolic compounds, terpenoids, aromatic compounds of studied algal extracts were identified by GC-MS. The Gas chromatographymass spectrometry (GC-MS) analysis of the green alga Ulva fasciata ethanolic extract showed a presence of fatty acids, alkaloids, phenolic, terpenoid and aromatic compounds. Potential activity test of the AgNPs formed by Ulva fasciata ethanolic extract against the nephrotoxicity on albino rats revealed good positive results indicated the preventive effects of the disease by using of Ulva fasciata AgNPs.

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Section: Characterization Of Agnps Synthesized By U Fasciata Uv-visimentioning

confidence: 99%

Potentiality of Silver Nanoparticles Prepared by Ulva fasciata as Anti-nephrotoxicity in Albino-Rats

et al. 2017

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“…47 Thus, some degree of caution needs to be taken when comparing sizes and chemical reactivity of nanoparticles produced by traditional chemical techniques and those produced by biological synthesis. 48 .…”

Section: Discussionmentioning

confidence: 99%

Biogenic synthesis of silver nanoparticles from waste banana plant stems and their antibacterial activity against Escherichia coli and Staphylococcus Epidermis

2017

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Background: This study for the first time presents an eco-friendly and room temperature procedure for biologically synthesizing silver (Ag) nanoparticles from waste banana plant stems.Methods: A simple and straightforward green chemistry based technique used waste banana plant stems to act as both reducing agent and capping agent to produce Ag nanoparticles, which were subsequently characterized. In addition, antibacterial studies were conducted using the Kirby-Bauer sensitivity method.Results: Advanced characterisation revealed the Ag nanoparticles had a variety of shapes including cubes, truncated triangular and hexagonal plates, and ranged in size from 70 nm up to 600 nm. The gram-negative bacteria Escherichia coli showed the maximum inhibition zone of 12 mm.Conclusions: The study has shown that waste banana plant stems can generate Ag nanoparticles with antibacterial activity against Escherichia coli and Staphylococcus epidermis.

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“…The above synthetic protocol by plant extract or biomass exemplifies the promising application of green synthesis of metal nanoparticles. Very recently, silver and gold nanoparticles have been synthesised using various natural products like green tea (Camellia sinensis) [31], neem (Azadirachta indica) leaf broth [32], natural rubber [33], latex and seed extract of Jatropha curcas [34,35], aloevera plant extract [36], lemongrass leaf extract [11], leguminous shrub (Sesbania drummondii) [37], henna leaf extract [38], lixivium of sun-dried Cinnamomum camphora leaves [39], etc.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of gold nanoparticles of variable morphologies using aqueous leaf extracts ofCocculus hirsutus

Bar

Bhui

Sahoo

et al. 2012

Journal of Experimental Nanoscience

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Spherical, triangular (prismatic) and square plate shaped gold nanoparticles have been synthesised from HAuCl 4 Á 3H 2 O solution using the aqueous leaf extract of Cocculus hirsutus. Nanoparticles are characterised using higher resolution transmission electron microscope, X-ray diffraction and UV-Vis absorption spectroscopic study. FT-IR analysis reveals that the gold nanostructures are mostly stabilised by the carbonyl and amide groups present in the active component of C. hirsutus leaf extract. Formation of gold nanostructures of variable morphologies has been explained due to slow reduction of gold ions by the mild reducing ascorbic acid present within the extract and this controlled reduction assists the preferential deposition of Au atom on different lesserprotected faces of initially grown gold nanostructure.

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Biological synthesis of silver and gold nanoparticles using apiin as reducing agent

Cited by 504 publications

References 29 publications

Potentiality of Silver Nanoparticles Prepared by Ulva fasciata as Anti-nephrotoxicity in Albino-Rats

Potentiality of Silver Nanoparticles Prepared by Ulva fasciata as Anti-nephrotoxicity in Albino-Rats

Biogenic synthesis of silver nanoparticles from waste banana plant stems and their antibacterial activity against Escherichia coli and Staphylococcus Epidermis

Synthesis of gold nanoparticles of variable morphologies using aqueous leaf extracts ofCocculus hirsutus

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