Long-term investigation on the phase stability, magnetic behavior, toxicity, and MRI characteristics of superparamagnetic Fe/Fe-oxide core/shell nanoparticles

A detailed investigation of magnetization relaxation for silver-coated magnetite nanostructures with three different types of magnetic behavior in a single particle is presented.

Download Full-text

Chemical Synthesis of FePt/Fe-oxide Core/shell Nanoparticles

Journal of the Japan Society of Powder and Powder Metallurgy ◽

10.2497/jjspm.56.121 ◽

2009 ◽

Vol 56 (3) ◽

pp. 121-126 ◽

Cited By ~ 1

Author(s):

Yoshitaka Kitamoto ◽

Kenichiro Kimura ◽

Yohtaro Yamazaki

Keyword(s):

Chemical Synthesis ◽

Core Shell ◽

Shell Nanoparticles ◽

Fe Oxide ◽

Core Shell Nanoparticles

Download Full-text

Synthesis and magnetooptic characterization of Cu-doped ZnO/MgO and ZnO/oleic acid core/shell nanoparticles

RSC Advances ◽

10.1039/c6ra01453d ◽

2016 ◽

Vol 6 (50) ◽

pp. 44820-44825 ◽

Cited By ~ 3

Author(s):

J. Mikulski ◽

B. Sikora ◽

K. Fronc ◽

P. Aleshkevych ◽

S. Kret ◽

...

Keyword(s):

Oleic Acid ◽

Magnetic Behavior ◽

Core Shell ◽

Shell Nanoparticles ◽

Ion Doping ◽

Doped Zno ◽

Core Shell Nanoparticles

The effect of Cu ion doping on the photoluminescence (PL) and magnetic behavior of ZnO/MgO and ZnO/oleic acid core/shell nanoparticles is investigated.

Download Full-text

Effects of Zn Substitution in the Magnetic and Morphological Properties of Fe-Oxide-Based Core–Shell Nanoparticles Produced in a Single Chemical Synthesis

The Journal of Physical Chemistry C ◽

10.1021/acs.jpcc.8b08988 ◽

2018 ◽

Vol 123 (2) ◽

pp. 1444-1453 ◽

Cited By ~ 4

Author(s):

Javier Lohr ◽

Adriele Aparecida de Almeida ◽

M. Sergio Moreno ◽

Horacio Troiani ◽

Gerardo F. Goya ◽

...

Keyword(s):

Chemical Synthesis ◽

Morphological Properties ◽

Core Shell ◽

Shell Nanoparticles ◽

Fe Oxide ◽

Zn Substitution ◽

Single Chemical ◽

Core Shell Nanoparticles

Download Full-text

Field-assisted organization, substrate effects and magnetic behavior of Ag30Co70 core–shell nanoparticles

Solid State Sciences ◽

10.1016/j.solidstatesciences.2010.06.006 ◽

2010 ◽

Vol 12 (11) ◽

pp. 1907-1911 ◽

Cited By ~ 5

Author(s):

A.D. Crisan ◽

M. Angelakeris ◽

K. Simeonidis ◽

I. Tsiaoussis ◽

O. Crisan

Keyword(s):

Magnetic Behavior ◽

Core Shell ◽

Shell Nanoparticles ◽

Substrate Effects ◽

Core Shell Nanoparticles

Download Full-text

Iron Oxide Composite Nanoparticles and Sensing Properties

MRS Proceedings ◽

10.1557/proc-0900-o06-26 ◽

2005 ◽

Vol 900 ◽

Author(s):

Lingyan Wang ◽

Xiajing Shi ◽

Sakienah Mahs ◽

Jeongku Choi ◽

Karan Sarup ◽

...

Keyword(s):

Iron Oxide ◽

Oxide Shell ◽

Core Shell ◽

Shell Nanoparticles ◽

Fe Oxide ◽

Sensing Properties ◽

Volatile Organic ◽

Unique Aspect ◽

Core Shell Nanoparticles ◽

Piezoelectric Devices

ABSTRACTThis paper reports findings of an investigation of the synthesis of monolayer-capped iron oxide and core (iron oxide)-shell (gold) nanocomposite and their assembly towards thin films as sensing materials. Pre-synthesized and size-defined iron oxide nanoparticles were used as seeding materials for the reduction of gold precursors, which was shown to be effective for coating the iron oxide cores with gold shells (Fe oxide@Au). The unique aspect of our synthesis is the formation of Fe oxide@Au core-shell nanoparticles with controllable surface properties. By controlling the reaction temperatures and manipulating the capping agent properties and solution compositions, the size, shape, composition, and monodispersity can be tailored. The core-shell nanoparticles were shown to form molecularly-mediated thin film assemblies using molecular mediators. The sensing properties of the nanostructures on piezoelectric devices were examined for the detection of volatile organic compounds. The preliminary results have provided important insights into the design of core-shell nanocomposites as sensing materials.

Download Full-text

The effects of the size and structure on magnetic behavior of core/shell nanoparticles

International Journal of Modern Physics B ◽

10.1142/s021797921950125x ◽

2019 ◽

Vol 33 (13) ◽

pp. 1950125

Author(s):

Long V. Le ◽

Vinh V. Le ◽

Quy Q. Ho

Keyword(s):

Phase Diagrams ◽

Exchange Coupling ◽

Magnetic Behavior ◽

Md Simulations ◽

Core Shell ◽

Shell Nanoparticles ◽

Mc Simulation ◽

Amorphous States ◽

Core Shell Nanoparticles ◽

Hexagonal Closed Packed

Molecular dynamics (MD) simulations have been employed to simulate the structure of Ni nanoparticles (NPs). These NPs consist of 500, 1372, 2916 and 5324 atoms. Various structures of these NPs, consisting of faced-centered cubic (fcc), hexagonal closed packed (hcp), icosahedral (ico) and amorphous states, have been simulated by changing the cooling rate from 2000 to 300 K. The models of mixed core/shell spin (1, 3/2) have been set based on the NPs. Monte Carlo (MC) simulation has been applied to investigate the magnetic behavior and phase diagrams of the models. We have found that the structure of the models plays important role on the characteristic phase diagrams. The effects of the atomic number as well as the exchange coupling J[Formula: see text]/J[Formula: see text] (J[Formula: see text] — the shell coupling and J[Formula: see text] — the core coupling) on the thermal and magnetic behaviors of the models have been presented and discussed. The phase diagrams in k[Formula: see text]T/J[Formula: see text]−J[Formula: see text]/J[Formula: see text] plane also have been observed by changing the structure and the number atoms of the models.

Download Full-text