scholarly journals Iron Oxide Nanoparticles – Characterization and Antimicrobial Studies

2021 ◽  
Vol 6 (03) ◽  
pp. 27-32
Author(s):  
Disholin Dennison Priya ◽  
Thangavel Pichaiappa Rajesh ◽  
Rachel Syam Sundar ◽  
Chandrasekhar Narendhar
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Iron Nanoparticles ◽  
Flavonoid Glycoside ◽  
Hydroxyl Group ◽  
Oxide Nanoparticles ◽  
E Coli ◽  
Antimicrobial Studies ◽  
Uv Visible ◽  
Nanoparticles Characterization

Nanotechnology is one of the most promising technologies that give us better outcomes from biological and industrial issues. This work ismainly based on the green synthesis of iron oxide nanoparticles, assisted by the flower extract. The nanoparticles were synthesized and characterized using UV Visible spectroscopy with characteristic absorbance peaks at 300 nm and 310 nm. Prominent Fourier-Transform Infrared Spectroscopy (FTIR) peaks were obtained corresponding to phenols, amide group, aromatic ring, hydroxyl group, and carbonate ions involved in the stabilization of iron oxide nanoparticles formation. Dynamic light scattering analysis of nanoparticles showed the average sizes as 80.7 nm. Scanning electron microscope images revealed that the size of iron nanoparticles in the range of 160-300 nm. The green synthesized iron nanoparticles have promising potential to inhibit the growth of bacteria. Iron oxide nanoparticles inhibit E. coli, B. subtilis, P. aeruginosa was also enumerated as antimicrobial study. The phytochemicals alkaloid, flavonoid, glycoside, terpenoid, and saponin present in theSenna auriculata may be attributed to reducing iron oxidenanoparticles.

Shaping and Cellular Uptake of Folic Acid Coated Gold and Magnetite Nanoparticles

2019 ◽  
Vol 9 (2) ◽  
pp. 166-172
Author(s):  
Ahmed A.G. El-Shahawy ◽  
Gamal Elghnam ◽  
Alsayed A.M. Alsherbini
Keyword(s):  
Folic Acid ◽  
Iron Oxide ◽  
Tumor Cells ◽  
Iron Oxide Nanoparticles ◽  
Individual Cell ◽  
Oxide Nanoparticles ◽  
Cellular Compartment ◽  
Specific Tumor ◽  
Uv Visible

Background:Gold and Iron Oxide nanoparticles NPs play as nanocarriers for a specific drug delivery and contrast agents. Intercellular uptake of these nanoparticles and targeting to individual cell and sub-cellular compartment is essential.Objective:The aim of the current study is to evaluate the intracellular uptake of these NPs to specific tumor cells in vitro conjugated with folic acid with a goal of enhancing the efficiency of specific targeting to tumor cells.Methods:We synthesized the nanoparticles by a chemical method and characterized by UV-Visible, FTIR, XRD, and TEM.Results & Conclusion:The results revealed the conjugation of Gold and Iron Oxide nanoparticles with folic acid increased the intercellular uptake with high percent compared to non- conjugated nanoparticles.

PHOTOCATALYTIC DEGRADATION OF METHYLENE BLUE USING IRON OXIDE NANOPARTICLES SYNTHESIZED USING ANNONA MURICATA LEAF EXTRACT

2020 ◽  
pp. 46-51
Author(s):  
BEENA JOSE ◽  
FEMY THOMAS
Keyword(s):  
Electron Microscopy ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Leaf Extract ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
Annona Muricata ◽  
Aqueous Leaf Extract ◽  
Oxide Nanoparticle ◽  
Uv Visible

Objective: The objective of the present study is the synthesis of iron oxide nanoparticles using Annona muricata aqueous leaf extract, characterization of the synthesized nanoparticles and evaluation of the antibacterial, photocatalytic activity and cytotoxicity. Methods: The iron oxide nanoparticle was synthesized using Annona muricata aqueous leaf extract and the crystal structure of the iron oxide nanoparticle was determined by UV-Visible spectroscopy, Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FTIR). The in vitro cytotoxicity of iron oxide nanoparticles was evaluated using Dalton’s lymphoma ascites cells and the antibacterial assay was conducted using agar well diffusion method. Results: The UV-Visible spectrum of iron oxide nanoparticle showed a maximum absorption peak at 265 nm. This is the XRD pattern of iron oxide nanoparticles exhibited a distinct peak at 26.029 (2θ), accounting for crystal plane (211). SEM images revealed that the synthesized iron oxide nanoparticles were aggregated as irregular sphere shapes with rough surfaces. TEM image reveals the size of the synthesized iron oxide nanoparticles are spherical in shape with an average size of 20 nm. Green synthesized iron oxide nanoparticles using Annona muricata leaf extract effectively degraded methylene blue dye. Conclusion: This study showed that the synthesized iron oxide nanoparticles using Annona muricata aqueous leaf extract exhibited pronounced antibacterial, anticancer and photocatatytic activity and can be used in the textile industry for the purification of water contaminated with carcinogenic textile dyes. It can also be used as an external antiseptic in the prevention and treatment of bacterial infections.

scholarly journals Effects of iron nanoparticles on Mentha piperita L. under salinity stress

Biologija ◽  
2017 ◽  
Vol 63 (1) ◽  
Author(s):  
Meheri Askary ◽  
Seyed Mehdi Talebi ◽  
Fariba Amini ◽  
Ali Dousti Balout Bangan
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Salinity Stress ◽  
Iron Nanoparticles ◽  
Antioxidant Activities ◽  
Nutrient Deficiency ◽  
Dry Weight ◽  
Mentha Piperita ◽  
Oxide Nanoparticles ◽  
The Impact

The progress of nanotechnology presents many nanoparticles that are important in medicine, agriculture and industry. Quickly and entirely absorbed by plants, nano-compounds and remedy their nutrient deficiency and satisfy this need. Iron oxide nanoparticles with suitable surface chemistry can be used as a rich source of iron for plants due to its gradual release of Fe in a wide pH range (pH 3 to 11). The present study investigated the impact of iron oxide nanoparticles (Fe2O3NPs in 0, 10, 20 and 30  µM concentrations) on physiological parameters of peppermint (Mentha piperita) under salt stress (0, 50, 100 and 150 mM concentrations of NaCl). Fe2O3NPs caused increases in leaf fresh weight and dry weight, phosphorus, potassium, iron, zinc, and calcium contents of the peppermint under salinity stress but did not have an effect on the sodium element. 30 µM concentration of Fe2O3NP was more impressive. Lipid peroxidation and proline contents of the peppermint under salinity decreased significantly by applying Fe2O3NPs. The maximum activities of total antioxidant enzymes (I %), catalase, superoxide dismutase, and guailcol peroxidase were observed in plants treated with 150 mM of NaCl, but application of Fe2O3NPs declined these antioxidant activities. The results suggest that the appropriate concentration of iron nanoparticles could be used for stress resistance of the peppermint.

scholarly journals Experimental Study and Numerical Solution of Poly Acrylic Acid Supported Magnetite Nanoparticles Transport in a One-Dimensional Porous Media

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
M. Golzar ◽  
S. F. Saghravani ◽  
M. Azhdari Moghaddam
Keyword(s):  
Porous Media ◽  
Iron Oxide ◽  
Acrylic Acid ◽  
Numerical Solution ◽  
Iron Oxide Nanoparticles ◽  
Iron Nanoparticles ◽  
Chlorinated Solvents ◽  
Oxide Nanoparticles ◽  
One Dimensional ◽  
Poly Acrylic Acid

Recently, iron nanoparticles have attracted more attention for groundwater remediation due to its potential to reduce subsurface contaminants such as PCBs, chlorinated solvents, and heavy metals. The magnetic properties of iron nanoparticles cause to attach to each other and form bigger colloid particles of iron nanoparticles with more rapid sedimentation rate in aqueous environment. Using the surfactants such as poly acrylic acid (PAA) prevents iron nanoparticles from forming large flocs that may cause sedimentation and so increases transport distance of the nanoparticles. In this study, the transport of iron oxide nanoparticles (Fe3O4) stabilized with PAA in a one-dimensional porous media (column) was investigated. The slurries with concentrations of 20,100 and 500 (mg/L) were injected into the bottom of the column under hydraulic gradients of 0.125, 0.375, and 0.625. The results obtained from experiments were compared with the results obtained from numerical solution of advection-dispersion equation based on the classical colloid filtration theory (CFT). The experimental and simulated breakthrough curves showed that CFT is able to predict the transport and fate of iron oxide nanoparticles stabilized with PAA (up to concentration 500 ppm) in a porous media.

scholarly journals Effects of Change PH on The Structural and Optical Properties of Iron Oxide Nanoparticles

2021 ◽  
Vol 32 (3) ◽  
pp. 58
Author(s):  
Raad S. Sabry ◽  
Muslim A. Abid ◽  
Sarah Q. Hussein
Keyword(s):  
Particle Size ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Sem Images ◽  
Stabilizing Agents ◽  
E Coli ◽  
Gram Positive Bacteria ◽  
Different Shapes ◽  
Inhibition Zones

Iron oxide nanoparticles were made using celery extract by chemical method with change PH. Bio-materials in celery extract synthesized the iron oxide nanoparticles by reducing iron (III) chloride (FeCl3) and then acted as both capping and stabilizing agents. The iron oxide NPs were characterized by XRD, SEM, and UV–vis techniques. The change PH affected the size, shape, and purity of iron oxide NPs. XRD results showed Crystallite size increased from 16.71nm to 21.65nm as pH was increased from 1.6 to 12. SEM images showed that the particle size of (α-Fe2O3) NPs was around 40.06 nm, while increasing PH showed different shapes in the same sample.  The particle size became approximately 45.56 and 61.22 nm. UV–vis measurements showed the energy band increased from 3.11eV to 5.11eV. The antimicrobial activity of iron oxide NPs was determined by growth inhibition zones of the negative gram bacteria E. coli, Klebsiella spp, and gram-positive bacteria S. aureus, S. epidermidis, and fungal Candida albicans. The zones for (α-Fe2O3) NPs when PH 1.6 was between (12-13) mm. The zones for (α-Fe2O3) NPs when PH 12 was a little higher between (13-15) mm.

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