Structural characterization, antibacterial and catalytic effect of iron oxide nanoparticles synthesised using the leaf extract of Cynometra ramiflora

Groiss, Silvia; Selvaraj, Raja; Varadavenkatesan, Thivaharan; Vinayagam, Ramesh

doi:10.1016/j.molstruc.2016.09.031

Cited by 172 publications

(52 citation statements)

References 37 publications

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“…Also, the absorbance peak of ferric chloride (iron precursor) around 300 nm disappeared and a continuous absorption was observed in the visible region from 400-600 nm and present results are in accordance with the literature [4,9]. Also the absorbance peak of Actinodaphne madraspatna Bedd leaves extract at 280 nm attributed to phenolic moieties [10,11] have noticeable shift in its absorbance due to probable complexation of iron with phenolic compounds. The obtained UV-visible spectral data apparently featured the formation of FeONPs via (i) complexation of iron salt precursor with phytomoities of Actinodaphne madraspatna Bedd leaves extract, (ii) instant reduction and formation of FeONPs and (iii) stabilization by capping with phenolic compounds of Actinodaphne madraspatna Bedd leaves extract which was in good agreement with earlier reports [4,9,12].…”

Section: Resultssupporting

confidence: 90%

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Green Synthesis of Iron Oxide Nanoparticles Mediated by Actinodaphne madraspatna Bedd Leaves

Priya¹,

Thirumalai²,

Asharani³

2017

Asian J. Chem.

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In the present investigation, iron oxide nanoparticles were synthesized using a simple, rapid and green method using Actinodaphne madraspatna Bedd leaves as reducing agent. The UV-visible spectra showed strong absorption band in the visible region, which confirms the formation of iron oxide nanoparticles. TEM images showed distinct spherical shaped particles with average size of 20 nm. FT-IR spectra depicted the presence of phytomoities in Actinodaphne madraspatna Bedd leaves which may probably act as a reducing and capping layer and thus facilitating the formation of nanoparticles

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Section: Resultssupporting

confidence: 90%

“…1 as inset which reflect the diffraction peaks at 2θ = 29º, 40º, 50º, 66º and 74º were identified as iron oxide which are in consistent with earlier reports [3,8,11]. Additionally, the absence of peak at 2θ = 45º of zero valent iron clearly confirmed the formation of FeONPs.…”

Section: Resultssupporting

confidence: 89%

Green Synthesis of Iron Oxide Nanoparticles Mediated by Actinodaphne madraspatna Bedd Leaves

Priya¹,

Thirumalai²,

Asharani³

2017

Asian J. Chem.

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“…However, among the various biological systems for nanoparticle synthesis, plant mediated synthesis has captured major attention due to its role in rapid synthesis of nanoparticles, low cost, easy availability, safe handling and presence of broad range of biomolecules like tannins, flavanoids, alkaloids, phenols and hence this gives it the edge as the chassis of choice for an environment friendly and sustained application [11]. Nanoparticles have been synthesized using many different plant sources, to mention a few, silver nanoparticles using Cordia dichotoma fruit [12], iron oxide nanoparticles using Cynometra ramiflora leaf [13], copper nanoparticles using Solanum lycopersicum leaf [14], zinc oxide nanoparticles using Phyllanthus emblica leaf [15], gold nanoparticles using Artocarpus Lakoocha fruit, cerium oxide nanoparticles using Sida acuta leaf [16], titanium nanoparticles using Vigna Radiata seeds [17].…”

Section: Introductionmentioning

confidence: 99%

Biogenic synthesis of magnetic iron oxide nanoparticles using inedible borassus flabellifer seed coat: characterization, antimicrobial, antioxidant activity and in vitro cytotoxicity analysis

Sandhya

Kalaiselvam

2020

Mater. Res. Express

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An environment friendly green synthesis of iron oxide nanoparticles using the seed coat extract of B.flabellifer was investigated. The nanoparticles were characterized using XRD, UV–vis spectroscopy, FTIR, TGA, SEM and EDS. The x-ray diffraction spectrum showed the formation of crystalline inverse spinel magnetite nanoparticles with crystallite size of 35 nm and the UV–vis absorption recorded characteristic peak at 352 nm for iron oxide nanoparticles. The surface functionalization of the nanoparticles was confirmed from the various functional group peaks present in the FTIR spectrum and the thermal decomposition of the synthesized nanoparticles from TGA. The morphological study using SEM showed the formation of hexagonal shaped, well dispersed nanoparticles. The cytocompatibilty of the iron oxide nanoparticles was studied using MTT assay and haemolytic analysis. The antimicrobial activity of the nanoparticles against E. coli, S. aureus, B.subtilis, Shigella, A.niger and Candida albicans were measured and the nanoparticles showed significant activity against all the microorganisms which increased with increase in the nanoparticle concentration. The free radical scavenging activity of the nanoparticles against DPPH, Hydrogen peroxide and hydroxyl radical was performed which showed efficient antioxidant activity.

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“…This means that the plant extracts will contain different concentrations of natural reducing agents which can influence the characteristics of the nanoparticles. Green synthesized iron oxide nanoparticles from plants offers an alternative for exploitation of plants for pharmaceutical, water treatment, biomedical and catalytic applications [13][14][15][16][17]. Previous studies have shown that iron nanoparticles produced from plants have been used to catalyze the degradation of organic dyes such as bromothymol blue, methylene blue, aniline and Rhodamine B [14,18].…”

Section: Introductionmentioning

confidence: 99%

“…This involves corrosion of the surface of the iron oxide nanoparticle in an acidic environment producing ferrous ions that generate hydroxyl radicals. The radicals attack the dye molecules thus degrading them [14,20].…”

Section: Introductionmentioning

confidence: 99%

Catalytic degradation of methylene blue by iron nanoparticles synthesized using Galinsoga parviflora, Conyza bonariensis and Bidens pilosa leaf extracts

et al. 2019

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Green synthesized metallic nanoparticles are environmentally friendly, bio-compatible, and highly stable. The aim of this study was to synthesize iron nanoparticles (FeNPs) from FeCl 3 solution using aqueous leaf extracts of Galinsoga parviflora (Gp), Conyza bonariensis (Cb) and Bidens pilosa (Bp) and use them in degradation of methylene blue dye. The iron nanoparticles were characterized using UV-Vis spectrophotometer, FT-IR spectrophotometer, X-ray Fluorescence (EDXRF), X-ray diffractometer (XRD), and scanning electron microscope (SEM). Phytochemical screening for presence of secondary metabolites revealed presence of phenolics, phytosterols and flavonoids. The total phenolic and flavonoid content in Galinsoga parviflora, Conyza bonariensis and Bidens pilosa leaf extracts were 57.67 ± 1.27, 117.13 ± 0.03, 126.27 ± 0.013 mg Gallic Equivalent/g of Dry Weight (mg GAE/g DW) and 39.00 ± 0.56, 45.50 ± 0.59, 33.13 ± 0.81 mg Rutin Equivalent/g of Dry Weight (mg RE/g DW) respectively. The UV-Vis spectrum of FeCl 3 had a shoulder at 320 nm, which disappeared upon addition of G. parviflora, C. bonariensis and B. pilosa extracts confirming formation of iron nanoparticles. Evaluation of iron content of the synthesized nanoparticles revealed that the iron content in G. parviflora, C. bonariensis and B. pilosa extracts was 51, 47 and 44% respectively. XRD data revealed presence of a large amorphous coating that masked iron peaks, though 2 theta values observed have been reported to be of iron oxides. Methylene blue degradation studies revealed that CbNPs, BpNPs and GpNPs synthesized were good biocatalysts as they degraded the dye by 86, 84.3 and 92% respectively. Therefore, green synthesized iron nanoparticles is cost effective and environmentally safe in providing insight in the environmental removal of dyes.

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Structural characterization, antibacterial and catalytic effect of iron oxide nanoparticles synthesised using the leaf extract of Cynometra ramiflora

Cited by 172 publications

References 37 publications

Green Synthesis of Iron Oxide Nanoparticles Mediated by Actinodaphne madraspatna Bedd Leaves

Green Synthesis of Iron Oxide Nanoparticles Mediated by Actinodaphne madraspatna Bedd Leaves

Biogenic synthesis of magnetic iron oxide nanoparticles using inedible borassus flabellifer seed coat: characterization, antimicrobial, antioxidant activity and in vitro cytotoxicity analysis

Catalytic degradation of methylene blue by iron nanoparticles synthesized using Galinsoga parviflora, Conyza bonariensis and Bidens pilosa leaf extracts

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