A colloidally stable water dispersion of Ni nanowires as an efficient T2-MRI contrast agent

2017 ◽  
Vol 5 (18) ◽  
pp. 3338-3347 ◽  
Author(s):  
Manuel Bañobre-López ◽  
Cristina Bran ◽  
Carlos Rodríguez-Abreu ◽  
Juan Gallo ◽  
Manuel Vázquez ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Mri Contrast Agent ◽  
Mri Contrast ◽  
Water Dispersion ◽  
Stable Dispersion ◽  
T2 Mri

A colloidally stable dispersion of anisotropic Ni nanowires in water has been achieved showing good performance as a T2-contrast agent in MRI.

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.

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.

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.

scholarly journals Evaluation of non-targeting, C- or N-pH (low) insertion peptide modified superparamagnetic iron oxide nanoclusters for selective MRI of liver tumors and their potential toxicity in cirrhosis

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14051-14059
Author(s):  
Abdulrahman Ahmed Mahmood ◽  
Jianqi Zhang ◽  
Rufang Liao ◽  
Xiwei Pan ◽  
Dan Xu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Liver Cancer ◽  
Contrast Agent ◽  
Cancer Diagnosis ◽  
Liver Tumors ◽  
Superparamagnetic Iron Oxide ◽  
Mri Contrast Agent ◽  
Potential Toxicity ◽  
Mri Contrast ◽  
Specific Enhancement

The acid-responsive pHLIP modified SPION as an MRI contrast agent for liver cancer diagnosis requires the validation of both the tumor-specific enhancement and a safe profile in cirrhosis.

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