Fluorescent and paramagnetic core–shell hybrid nanoparticles for bi-modal magnetic resonance/luminescence imaging

2012 ◽  
Vol 22 (38) ◽  
pp. 20641 ◽  
Author(s):  
Weihua Di ◽  
Sabareesh K. P. Velu ◽  
Alessandro Lascialfari ◽  
Chunxu Liu ◽  
Nicola Pinna ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Hybrid Nanoparticles ◽  
Core Shell ◽  
Luminescence Imaging

scholarly journals PEG-Neridronate-Modified NaYF4:Gd3+,Yb3+,Tm3+/NaGdF4 Core–Shell Upconverting Nanoparticles for Bimodal Magnetic Resonance/Optical Luminescence Imaging

ACS Omega ◽  
2021 ◽  
Author(s):  
Uliana Kostiv ◽  
Marta Maria Natile ◽  
Daniel Jirák ◽  
Denisa Půlpánová ◽  
Klára Jiráková ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Core Shell ◽  
Luminescence Imaging ◽  
Optical Luminescence

Fabrication of Eu-doped Gd(OH)3 Nanorods with Enhanced Magnetic- Resonance and Luminescence Imaging

2017 ◽  
Vol 14 (3) ◽  
pp. 342-348 ◽  
Author(s):  
Yuanwen Zou ◽  
Zhi Wu ◽  
Zhongbing Huang ◽  
Guangfu Yin ◽  
Lei Wang ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Luminescence Imaging

scholarly journals Silica-Coated Fe3O4 Nanoparticles as a Bifunctional Agent for Magnetic Resonance Imaging and ZnII Fluorescent Sensing

2021 ◽  
Vol 20 ◽  
pp. 153303382110365
Author(s):  
Lin Qiu ◽  
Shuwen Zhou ◽  
Ying Li ◽  
Wen Rui ◽  
Pengfei Cui ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Contrast Agent ◽  
Quantum Interference ◽  
Inductively Coupled Plasma ◽  
Fluorescence Emission ◽  
Mri Contrast Agent ◽  
Core Shell ◽  
Resonance Imaging

Bifunctional magnetic/fluorescent core-shell silica nanospheres (MNPs) encapsulated with the magnetic Fe3O4 core and a derivate of 8-amimoquinoline (N-(quinolin-8-yl)-2-(3-(triethoxysilyl) propylamino) acetamide) (QTEPA) into the shell were synthesized. These functional MNPs were prepared with a modified stöber method and the formed Fe3O4@SiO2-QTEPA core-shell nanocomposites are biocompatible, water-dispersible, and stable. These prepared nanoparticles were characterized by X-ray power diffraction (XRD), transmission electron microscopy (TEM), thermoelectric plasma Quad II inductively coupled plasma mass spectrometry (ICP-MS), superconducting quantum interference device (SQUID), TG/DTA thermal analyzer (TGA) and Fourier transform infrared spectroscopy (FTIR). Further application of the nanoparticles in detecting Zn2+ was confirmed by the fluorescence experiment: the nanosensor shows high selectivity and sensitivity to Zn2+ with a 22-fold fluorescence emission enhancement in the presence of 10 μM Zn2+. Moreover, the transverse relaxivity measurements show that the core-shell MNPs have T2 relaxivity (r2) of 155.05 mM−1 S−1 based on Fe concentration on the 3.0 T scanner, suggesting that the compound can be used as a negative contrast agent for MRI. Further in vivo experiments showed that these MNPs could be used as MRI contrast agent. Therefore, the new nanosensor provides the dual modality of magnetic resonance imaging and optical imaging.

scholarly journals Gadolinium-labelled iron/iron oxide core/shell nanoparticles as T1–T2 contrast agent for magnetic resonance imaging

RSC Advances ◽  
2018 ◽  
Vol 8 (47) ◽  
pp. 26764-26770 ◽  
Author(s):  
Kaili Wang ◽  
Lu An ◽  
Qiwei Tian ◽  
Jiaomin Lin ◽  
Shiping Yang
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Core Shell ◽  
Resonance Imaging ◽  
Shell Nanoparticles ◽  
High Penetration ◽  
Iron Iron ◽  
Magnetic Resonance Imaging Mri ◽  
Iron Oxide Core ◽  
Core Shell Nanoparticles

Magnetic resonance imaging (MRI) is indispensable and powerful in modern clinical diagnosis and has some advantages such as non-invasiveness and high penetration depth.

ZnO coated CoFe2O4 nanoparticles for multimodal bio-imaging

RSC Advances ◽  
2016 ◽  
Vol 6 (23) ◽  
pp. 18843-18851 ◽  
Author(s):  
N. Venkatesha ◽  
Yasrib Qurishi ◽  
Hanudatta S. Atreya ◽  
Chandan Srivastava
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Core Shell ◽  
Resonance Imaging ◽  
Cofe2o4 Nanoparticles ◽  
Shell Nanoparticles ◽  
Fluorescence Optical Imaging ◽  
Bio Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
Core Shell Nanoparticles

The potential of CoFe2O4–ZnO core–shell nanoparticles for fluorescence optical imaging and as a contrast agent for magnetic resonance imaging (MRI) is demonstrated.

scholarly journals Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

2018 ◽  
Vol 8 (3) ◽  
pp. 411 ◽  
Author(s):  
Mehrdad Khatami ◽  
Hajar Alijani ◽  
Meysam Nejad ◽  
Rajender Varma
Keyword(s):  
Large Scale ◽  
Hybrid Nanoparticles ◽  
Target Cells ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Environmental Friendliness ◽  
Shell Nanostructures ◽  
Greener Synthesis ◽  
Core Shell Nanoparticles ◽  
Synthesis Of Nanostructures

Among an array of hybrid nanoparticles, core-shell nanoparticles comprise of two or more materials, such as metals and biomolecules, wherein one of them forms the core at the center, while the other material/materials that were located around the central core develops a shell. Core-shell nanostructures are useful entities with high thermal and chemical stability, lower toxicity, greater solubility, and higher permeability to specific target cells. Plant or natural products-mediated synthesis of nanostructures refers to the use of plants or its extracts for the synthesis of nanostructures, an emerging field of sustainable nanotechnology. Various physiochemical and greener methods have been advanced for the synthesis of nanostructures, in contrast to conventional approaches that require the use of synthetic compounds for the assembly of nanostructures. Although several biological resources have been exploited for the synthesis of core-shell nanoparticles, but plant-based materials appear to be the ideal candidates for large-scale green synthesis of core-shell nanoparticles. This review summarizes the known strategies for the greener production of core-shell nanoparticles using plants extract or their derivatives and highlights their salient attributes, such as low costs, the lack of dependence on the use of any toxic materials, and the environmental friendliness for the sustainable assembly of stabile nanostructures.

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