Superparamagnetic amorphous iron oxide nanowires self-assembled into ordered layered structures

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62563-62570 ◽  
Author(s):  
M. Iacob ◽  
D. Sirbu ◽  
C. Tugui ◽  
G. Stiubianu ◽  
L. Sacarescu ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Trichloroacetic Acid ◽  
Layered Structures ◽  
Oxide Nanoparticles ◽  
Amorphous Iron ◽  
Oxide Nanowires ◽  
Self Assembled

The thermal decomposition of μ3-oxo trinuclear iron(iii) acetate in presence of dodecylamine and oleic acid, in trichloroacetic acid at 320 °C was optimized to obtain iron oxide nanoparticles with pure nanowire morphology.

Self-Assembled Monolayer Coatings on Amorphous Iron and Iron Oxide Nanoparticles:  Thermal Stability and Chemical Reactivity Studies

Langmuir ◽  
1997 ◽  
Vol 13 (23) ◽  
pp. 6151-6158 ◽  
Author(s):  
G. Kataby ◽  
T. Prozorov ◽  
Yu. Koltypin ◽  
H. Cohen ◽  
Chaim N. Sukenik ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Chemical Reactivity ◽  
Oxide Nanoparticles ◽  
Self Assembled Monolayer ◽  
Amorphous Iron ◽  
Self Assembled

Synthesis of Iron Oxide Nanoparticles by Thermal Decomposition Approach

2009 ◽  
Vol 67 ◽  
pp. 221-226 ◽  
Author(s):  
Shuchi Dixit ◽  
P. Jeevanandam
Keyword(s):  
Thermal Decomposition ◽  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Diphenyl Ether ◽  
Oxide Nanoparticles ◽  
One Pot ◽  
Decomposition Approach ◽  
Oleyl Amine ◽  
Acetyl Acetonate

An easy onepot reaction for the synthesis of iron oxide nanoparticles is reported. Thermal decomposition of iron acetyl acetonate (Fe(acac)3) in diphenyl ether, in the presence of oleic acid and oleyl amine followed by calcination, leads to the formation of iron oxide nanoparticles. Variation of concentration of the oleyl amine during the synthesis affects the morphology of the iron oxide nanoparticles produced.

Self-Assembled Monolayers of Alkanesulfonic and -phosphonic Acids on Amorphous Iron Oxide Nanoparticles

Langmuir ◽  
1999 ◽  
Vol 15 (21) ◽  
pp. 7111-7115 ◽  
Author(s):  
C. Yee ◽  
G. Kataby ◽  
A. Ulman ◽  
T. Prozorov ◽  
H. White ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Self Assembled Monolayers ◽  
Oxide Nanoparticles ◽  
Phosphonic Acids ◽  
Amorphous Iron ◽  
Assembled Monolayers ◽  
Self Assembled

Sonochemical Synthesis of Functionalized Amorphous Iron Oxide Nanoparticles

Langmuir ◽  
2001 ◽  
Vol 17 (16) ◽  
pp. 5093-5097 ◽  
Author(s):  
Kurikka V. P. M. Shafi ◽  
Abraham Ulman ◽  
Xingzhong Yan ◽  
Nan-Loh Yang ◽  
Claude Estournès ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Sonochemical Synthesis ◽  
Amorphous Iron

Heterometallic Co-Dy SMMs grafted on iron oxide nanoparticles

2021 ◽  
Author(s):  
Lidia Rosado Piquer ◽  
Jan Dreiser ◽  
E. Carolina Sañudo
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Self Assembled Monolayer ◽  
Self Assembled ◽  
System 1

The heterometallic 3d-4f SMM [Co4Dy(OH)2(SALOH)5(chp)4(MeCN)(H2O)2] (1) has been deposited onto iron oxide nanoparticles (NP) with an oleate self-assembled monolayer (SAM) as surfactant. The hybrid molecular-inorganic system 1-NP has been thoroughly...

scholarly journals Unravelling the Thermal Decomposition Parameters for The Synthesis of Anisotropic Iron Oxide Nanoparticles

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 881 ◽  
Author(s):  
Geoffrey Cotin ◽  
Céline Kiefer ◽  
Francis Perton ◽  
Dris Ihiawakrim ◽  
Cristina Blanco-Andujar ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Sodium Oleate ◽  
Shape Control ◽  
Oxide Nanoparticles ◽  
Chelating Ligand ◽  
Precursor Structure ◽  
Negative Effect ◽  
Magnetic Resonance Imaging Mri

Iron oxide nanoparticles are widely used as a contrast agent in magnetic resonance imaging (MRI), and may be used as therapeutic agent for magnetic hyperthermia if they display in particular high magnetic anisotropy. Considering the effect of nanoparticles shape on anisotropy, a reproducible shape control of nanoparticles is a current synthesis challenge. By investigating reaction parameters, such as the iron precursor structure, its water content, but also the amount of the surfactant (sodium oleate) reported to control the shape, iron oxide nanoparticles with different shape and composition were obtained, in particular, iron oxide nanoplates. The effect of the surfactant coming from precursor was taking into account by using in house iron stearates bearing either two or three stearate chains and the negative effect of water on shape was confirmed by considering these precursors after their dehydration. Iron stearates with three chains in presence of a ratio sodium oleate/oleic acid 1:1 led mainly to nanocubes presenting a core-shell Fe1−xO@Fe3−xO4 composition. Nanocubes with straight faces were only obtained with dehydrated precursors. Meanwhile, iron stearates with two chains led preferentially to the formation of nanoplates with a ratio sodium oleate/oleic acid 4:1. The rarely reported flat shape of the plates was confirmed with 3D transmission electronic microscopy (TEM) tomography. The investigation of the synthesis mechanisms confirmed the major role of chelating ligand and of the heating rate to drive the cubic shape of nanoparticles and showed that the nanoplate formation would depend mainly on the nucleation step and possibly on the presence of a given ratio of oleic acid and chelating ligand (oleate and/or stearate).

Characterization of Oleic-acid-coated Iron-oxide Nanoparticles Synthesized by Using a Coprecipitation Method

2014 ◽  
Vol 64 (3) ◽  
pp. 344-348
Author(s):  
Yousaf IQBAL ◽  
Ilsu RHEE ◽  
Hongsub BAE ◽  
Junghyun BYUN ◽  
Taeyoung JUNG ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Coprecipitation Method ◽  
Oxide Nanoparticles

Evaluation of cytotoxicity and genotoxicity induced by oleic acid‐coated iron oxide nanoparticles in human astrocytes

2019 ◽  
Vol 60 (9) ◽  
pp. 816-829 ◽  
Author(s):  
Natalia Fernández‐Bertólez ◽  
Carla Costa ◽  
Fátima Brandão ◽  
José Alberto Duarte ◽  
Joao Paulo Teixeira ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Human Astrocytes

Iron oxide nanoparticles modified with oleic acid: Vibrational and phase determination

2016 ◽  
Vol 99 ◽  
pp. 111-118 ◽  
Author(s):  
Paula P. Soares ◽  
Geórgia S. Barcellos ◽  
Cesar L. Petzhold ◽  
Vladimir Lavayen
Keyword(s):  
Oleic Acid ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Phase Determination
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