Bifunctional Magnetic−Luminescent Nanocomposites: Y2O3/Tb Nanorods on the Surface of Iron Oxide/Silica Core−Shell Nanostructures

2008 ◽  
Vol 112 (26) ◽  
pp. 9623-9626 ◽  
Author(s):  
Yunxia Zhang ◽  
Shusheng Pan ◽  
Xuemei Teng ◽  
Yuanyuan Luo ◽  
Guanghai Li
Keyword(s):  
Iron Oxide ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Silica Core

Controlled Fabrication of Iron Oxide/Mesoporous Silica Core–Shell Nanostructures

2013 ◽  
Vol 117 (41) ◽  
pp. 21529-21538 ◽  
Author(s):  
Mingwei Zhang ◽  
Kegong Fang ◽  
Minggui Lin ◽  
Bo Hou ◽  
Liangshu Zhong ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Mesoporous Silica ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Silica Core

scholarly journals A Facile Route for the Preparation of Monodisperse Iron nitride at Silica Core/shell Nanostructures

2021 ◽  
Vol 9 ◽  
Author(s):  
Hoonsub Kim ◽  
Pyung Won Im ◽  
Yuanzhe Piao
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Quantum Interference ◽  
Large Scale ◽  
Metal Oxide Nanoparticles ◽  
Iron Nitride ◽  
Oxide Nanoparticles ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Silica Core

Uniform-sized iron oxide nanoparticles obtained from the solution phase thermal decomposition of the iron-oleate complex were encapsulated inside the silica shell by the reverse microemulsion technique, and then thermal treatment under NH3 to transfer the iron oxide to iron nitride. The transmission electron microscopy images distinctly demonstrated that the as-prepared iron nitride at silica core/shell nanostructures were highly uniform in particle-size distribution. By using iron oxide nanoparticles of 6.1, 10.3, 16.2, and 21.8 nm as starting materials, iron nitride nanoparticles with average diameters of 5.6, 9.3, 11.6, and 16.7 nm were produced, respectively. The acid-resistant properties of the iron nitride at silica core/shell nanostructures were found to be much higher than the starting iron oxide at silica. A superconducting quantum interference device was used for the magnetic characterization of the nanostructure. Besides, magnetic resonance imaging (MRI) studies using iron nitride at silica nanocomposites as contrast agents demonstrated T2 enhanced effects that were dependent on the concentration. These core/shell nanostructures have enormous potential in magnetic nanodevice and biomedical applications. The current process is expected to be easy for large-scale and transfer other metal oxide nanoparticles.

Synthesis of polyaniline–magnetite nanocomposites using swollen liquid crystal templates for magnetically separable dye adsorbent applications

2018 ◽  
Vol 42 (8) ◽  
pp. 5709-5719 ◽  
Author(s):  
S. Dutt ◽  
T. Vats ◽  
P. F. Siril
Keyword(s):  
Liquid Crystal ◽  
Iron Oxide ◽  
Core Shell ◽  
External Magnet ◽  
One Dimensional ◽  
Shell Nanostructures ◽  
Magnetically Separable

One dimensional iron oxide–polyaniline core–shell nanostructures enable faster adsorption of dyes and separation of the adsorbent using an external magnet.

scholarly journals Magnetite-Silica Core/Shell Nanostructures: From Surface Functionalization towards Biomedical Applications—A Review

2021 ◽  
Vol 11 (22) ◽  
pp. 11075
Author(s):  
Angela Spoială ◽  
Cornelia-Ioana Ilie ◽  
Luminița Narcisa Crăciun ◽  
Denisa Ficai ◽  
Anton Ficai ◽  
...  
Keyword(s):  
Magnetite Nanoparticles ◽  
Biomedical Applications ◽  
Sol Gel ◽  
Magnetic Nanomaterials ◽  
Core Shell ◽  
Synthesis Methods ◽  
Shell Nanostructures ◽  
Silica Core ◽  
Magnetic Resonance Imaging Mri ◽  
Co Precipitation

The interconnection of nanotechnology and medicine could lead to improved materials, offering a better quality of life and new opportunities for biomedical applications, moving from research to clinical applications. Magnetite nanoparticles are interesting magnetic nanomaterials because of the property-depending methods chosen for their synthesis. Magnetite nanoparticles can be coated with various materials, resulting in “core/shell” magnetic structures with tunable properties. To synthesize promising materials with promising implications for biomedical applications, the researchers functionalized magnetite nanoparticles with silica and, thanks to the presence of silanol groups, the functionality, biocompatibility, and hydrophilicity were improved. This review highlights the most important synthesis methods for silica-coated with magnetite nanoparticles. From the presented methods, the most used was the Stöber method; there are also other syntheses presented in the review, such as co-precipitation, sol-gel, thermal decomposition, and the hydrothermal method. The second part of the review presents the main applications of magnetite-silica core/shell nanostructures. Magnetite-silica core/shell nanostructures have promising biomedical applications in magnetic resonance imaging (MRI) as a contrast agent, hyperthermia, drug delivery systems, and selective cancer therapy but also in developing magnetic micro devices.

Formation of bismuth iron oxide based core–shell structures and their dielectric, ferroelectric and magnetic properties

2019 ◽  
Vol 7 (5) ◽  
pp. 1280-1291 ◽  
Author(s):  
Alaka Panda ◽  
R. Govindaraj ◽  
R. Mythili ◽  
G. Amarendra
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Magnetic Properties ◽  
Iron Oxide ◽  
Shell Structures ◽  
Core Shell ◽  
Bismuth Iron Oxide ◽  
The Core ◽  
Shell Nanostructures ◽  
Transmission Electron

Bismuth and iron oxides subjected to ball milling followed by controlled annealing treatments showed the formation of core–shell nanostructures with Bi2Fe4O9 as the core and a shell of BiFeO3 and Bi25FeO40 phases as deduced based on the analysis of transmission electron microscopy results.

scholarly journals Gd- and Eu-Loaded Iron Oxide@Silica Core–Shell Nanocomposites as Trimodal Contrast Agents for Magnetic Resonance Imaging and Optical Imaging

2019 ◽  
Vol 58 (24) ◽  
pp. 16618-16628 ◽  
Author(s):  
Sonia L. C. Pinho ◽  
José Sereno ◽  
Antero J. Abrunhosa ◽  
Marie-Hélène Delville ◽  
João Rocha ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Contrast Agents ◽  
Optical Imaging ◽  
Core Shell ◽  
Resonance Imaging ◽  
Silica Core

Novel approach to the fabrication of Au/silica core–shell nanostructures based on nanosecond laser irradiation of thin Au films on Si

2012 ◽  
Vol 23 (4) ◽  
pp. 045601 ◽  
Author(s):  
F Ruffino ◽  
A Pugliara ◽  
E Carria ◽  
L Romano ◽  
C Bongiorno ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Nanosecond Laser ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Novel Approach ◽  
Silica Core

scholarly journals Erratum to: Fluorescent Dye Labeled Iron Oxide/Silica Core/Shell Nanoparticle as a Multimodal Imaging Probe

2014 ◽  
Vol 32 (6) ◽  
pp. 2168-2168
Author(s):  
Eue Soon Jang ◽  
Seung Yong Lee ◽  
Eui-Joon Cha ◽  
In-Cheol Sun ◽  
Ick Chan Kwon ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Multimodal Imaging ◽  
Fluorescent Dye ◽  
Core Shell ◽  
Imaging Probe ◽  
Silica Core

scholarly journals Sonication-assisted synthesis of multi-functional gold nanorod/silica core–shell nanostructures

2013 ◽  
Vol 551 ◽  
pp. 405-409 ◽  
Author(s):  
Jun Liu ◽  
Meng-Jie Chang ◽  
Bao Gao ◽  
Zhu-Guo Xu ◽  
Hao-Li Zhang
Keyword(s):  
Gold Nanorod ◽  
Core Shell ◽  
Shell Nanostructures ◽  
Silica Core
Sign in / Sign up

Export Citation Format

Share Document