Tailoring a two-dimensional graphene oxide surface: dual T1 and T2 MRI contrast agent materials

2015 ◽  
Vol 3 (28) ◽  
pp. 5678-5682 ◽  
Author(s):  
Erwin Peng ◽  
Fenghe Wang ◽  
Suhui Tan ◽  
Bingwen Zheng ◽  
Sam Fong Yau Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Contrast Agent ◽  
Separation Distance ◽  
Water Soluble ◽  
Mri Contrast Agent ◽  
Oxide Surface ◽  
Two Dimensional ◽  
Mri Contrast ◽  
Nanoparticle Separation ◽  
T2 Mri

A water-soluble hybrid two-dimensional nanostructured dual T1–T2 MRI contrast agent with fair T1 and T2 nanoparticle separation distance and negligible T1/T2 signal quenching was developed.

Water-Soluble Ultra-Small Manganese Oxide Surface Doped Gadolinium Oxide (Gd2O3@MnO) Nanoparticles for MRI Contrast Agent

2010 ◽  
Vol 2010 (28) ◽  
pp. 4555-4560 ◽  
Author(s):  
Eun Sook Choi ◽  
Ja Young Park ◽  
Myung Ju Baek ◽  
Wenlong Xu ◽  
Krishna Kattel ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Manganese Oxide ◽  
Gadolinium Oxide ◽  
Water Soluble ◽  
Mri Contrast Agent ◽  
Oxide Surface ◽  
Mri Contrast

Water-Soluble Fluorinated Polymer Nanoparticle as 19F MRI Contrast Agent Prepared by Living Random Copolymerization from Dendrimer Initiator

2012 ◽  
Vol 85 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Michihiro Ogawa ◽  
Hiromasa Kataoka ◽  
Satoshi Nitahara ◽  
Hiroyuki Fujimoto ◽  
Hiroyuki Aoki ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Water Soluble ◽  
Mri Contrast Agent ◽  
Mri Contrast ◽  
Fluorinated Polymer ◽  
Polymer Nanoparticle ◽  
19F Mri

Nanostructured magnetic nanocomposites as MRI contrast agents

2015 ◽  
Vol 3 (11) ◽  
pp. 2241-2276 ◽  
Author(s):  
Erwin Peng ◽  
Fenghe Wang ◽  
Jun Min Xue
Keyword(s):  
Contrast Agent ◽  
Contrast Agents ◽  
Magnetic Nanoparticle ◽  
Mri Contrast Agents ◽  
Water Soluble ◽  
Mri Contrast Agent ◽  
Magnetic Nanocomposites ◽  
Functional Coating ◽  
Mri Contrast ◽  
Nanoparticle Assemblies

The development of water-soluble nanostructured magnetic nanocomposites based on hydrophobic magnetic nanoparticle assemblies using an organic functional coating for MRI contrast agent applications was discussed.

Cobalt ferrite nanowhiskers as T2 MRI contrast agent

RSC Advances ◽  
2015 ◽  
Vol 5 (22) ◽  
pp. 17223-17227 ◽  
Author(s):  
M. Ravichandran ◽  
Goldie Oza ◽  
S. Velumani ◽  
Jose Tapia Ramirez ◽  
Francisco Garcia-Sierra ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Cobalt Ferrite ◽  
Mri Contrast Agent ◽  
Mri Contrast ◽  
One Dimensional ◽  
One Step ◽  
T2 Mri

A novel, one-step synthesis of one-dimensional cobalt ferrite nanowhiskers (CfW) is reported.

Naphthalene-facilitated self-assembly of Gd-chelate as a novel T2 MRI contrast agent for visualization of stem cell transplants

2021 ◽  
Author(s):  
Yanhui Zhang ◽  
Hailu Zhang ◽  
Dehua Huang ◽  
Bo Tan ◽  
Chengxing Zhang ◽  
...  
Keyword(s):  
Stem Cell ◽  
Contrast Agent ◽  
Self Assembly ◽  
Mri Contrast Agent ◽  
Peptide Sequence ◽  
Mri Contrast ◽  
L929 Cells ◽  
Cell Transplants ◽  
Stem Cell Transplants ◽  
T2 Mri

Naphthalene is coupled with DOTA via a peptide sequence to yield an amphipathic MRI probe Nap-CFGKTG-DOTA-Gd (Nap-Gd) that can self-assemble into nanofibers. Incubation of NSCs, hMSCs and L929 cells in...

scholarly journals Dual T1/T2 MRI contrast agent based on hybrid SPION@coordination polymer nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86779-86783 ◽  
Author(s):  
M. Borges ◽  
S. Yu ◽  
A. Laromaine ◽  
A. Roig ◽  
S. Suárez-García ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Coordination Polymer ◽  
Contrast Agent ◽  
Polymer Nanoparticles ◽  
Mri Contrast Agent ◽  
Oxide Nanoparticles ◽  
Mri Contrast ◽  
Agent Based ◽  
Iron Coordination ◽  
T2 Mri

A novel dual T1/T21H-MRI contrast agent based on the encapsulation of super-paramagnetic iron oxide nanoparticles (SPIONs) with an iron coordination polymer is proposed.

Preparation of Graphene Oxide/Fe 3 O 4 Nanocomposite as a Potential Magnetic Nanocarrier and MRI Contrast Agent

2021 ◽  
Vol 6 (12) ◽  
pp. 2862-2868 ◽  
Author(s):  
Somayeh Sadighian ◽  
Nahid Bayat ◽  
Sahar Najaflou ◽  
Mehraneh Kermanian ◽  
Mehrdad Hamidi
Keyword(s):  
Graphene Oxide ◽  
Contrast Agent ◽  
Mri Contrast Agent ◽  
Mri Contrast

scholarly journals New Class of Efficient T2 Magnetic Resonance Imaging Contrast Agent: Carbon-Coated Paramagnetic Dysprosium Oxide Nanoparticles

2020 ◽  
Vol 13 (10) ◽  
pp. 312
Author(s):  
Huan Yue ◽  
Ji Ae Park ◽  
Son Long Ho ◽  
Mohammad Yaseen Ahmad ◽  
Hyunsil Cha ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Magnetic Moments ◽  
Negative Contrast ◽  
Mri Contrast Agents ◽  
Proton Spin ◽  
Mri Contrast Agent ◽  
Water Proton ◽  
Dysprosium Oxide ◽  
Mri Contrast ◽  
T2 Mri

Nanoparticles are considered potential candidates for a new class of magnetic resonance imaging (MRI) contrast agents. Negative MRI contrast agents require high magnetic moments. However, if nanoparticles can exclusively induce transverse water proton spin relaxation with negligible induction of longitudinal water proton spin relaxation, they may provide negative contrast MR images despite having low magnetic moments, thus acting as an efficient T2 MRI contrast agent. In this study, carbon-coated paramagnetic dysprosium oxide (DYO@C) nanoparticles (core = DYO = DyxOy; shell = carbon) were synthesized to explore their potential as an efficient T2 MRI contrast agent at 3.0 T MR field. Since the core DYO nanoparticles have an appreciable (but not high) magnetic moment that arises from fast 4f-electrons of Dy(III) (6H15/2), the DYO@C nanoparticles exhibited an appreciable transverse water proton spin relaxivity (r2) with a negligible longitudinal water proton spin relaxivity (r1). Consequently, they acted as a very efficient T2 MRI contrast agent, as proven from negative contrast enhancements seen in the in vivo T2 MR images.

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