Photoresponsive host–guest chemistry and relaxation time of fluorinated cyclodextrin and arylazopyrazole-functionalized DOTA metal complexes

2021 ◽  
Vol 19 (10) ◽  
pp. 2186-2191
Author(s):  
Julian Simke ◽  
Till Böckermann ◽  
Klaus Bergander ◽  
Sina Klabunde ◽  
Michael Ryan Hansen ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Relaxation Time ◽  
Contrast Agent ◽  
Metal Complexes ◽  
Mri Contrast Agent ◽  
Guest Complex ◽  
Mri Contrast ◽  
Host Guest Complex ◽  
Guest Chemistry

The photomodulation of a host–guest complex provides a new concept for a responsive 19F MRI contrast agent in aqueous solution.

A facile synthetic approach to a biodegradable polydisulfide MRI contrast agent

2014 ◽  
Vol 2 (32) ◽  
pp. 5295-5301 ◽  
Author(s):  
Weiren Cheng ◽  
Reshmi Rajendran ◽  
Wei Ren ◽  
Liuqun Gu ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Side Effects ◽  
Contrast Agent ◽  
Self Assembly ◽  
Mri Contrast Agent ◽  
Synthetic Approach ◽  
Mri Imaging ◽  
Mri Contrast ◽  
Low Cytotoxicity

A biodegradable novel polydisulfide MRI contrast agent forming self-assembly in aqueous solution with a low cytotoxicity and a higherr1is promising for producing better MRI imaging with fewer side effects.

Phase transfer preparation of ultrasmall MnS nanocrystals with a high performance MRI contrast agent

RSC Advances ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 6878-6887 ◽  
Author(s):  
Jing Meng ◽  
Yizhe Zhao ◽  
Zhongfeng Li ◽  
Ligang Wang ◽  
Yang Tian
Keyword(s):  
Aqueous Solution ◽  
Contrast Agent ◽  
High Performance ◽  
Sodium Citrate ◽  
Phase Transfer ◽  
Mri Contrast Agent ◽  
Mri Contrast ◽  
Transfer Method ◽  
Sulfide Nanocrystals

In this paper, a phase transfer method is reported which was used to prepare ultrasmall manganese(ii) sulfide nanocrystals in which prefabricated MnS aggregations are transferred from cyclohexane into an aqueous solution of sodium citrate.

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.

Gd2O3 nanoparticles as a positive MRI contrast agent for cell uptake

2010 ◽  
Author(s):  
N. Riyahi-Alam ◽  
J. Behrouzkia ◽  
S. Haghgoo ◽  
A Seifalian ◽  
R Zohdi Aghdam. ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Mri Contrast Agent ◽  
Cell Uptake ◽  
Mri Contrast ◽  
Gd2o3 Nanoparticles

scholarly journals Biocompatibility of Bacterial Magnetosomes as MRI Contrast Agent: A Long-Term In Vivo Follow-Up Study

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1235
Author(s):  
Xiaohui Nan ◽  
Wenjia Lai ◽  
Dan Li ◽  
Jiesheng Tian ◽  
Zhiyuan Hu ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Magnetic Domain ◽  
Bilayer Membrane ◽  
The Body ◽  
Mri Contrast Agent ◽  
Mri Imaging ◽  
Mri Contrast

Derived from magnetotactic bacteria (MTB), magnetosomes consist of magnetite crystals enclosed within a lipid bilayer membrane and are known to possess advantages over artificially synthesized nanoparticles because of the narrow size distribution, uniform morphology, high purity and crystallinity, single magnetic domain, good biocompatibility, and easy surface modification. These unique properties have increasingly attracted researchers to apply bacterial magnetosomes (BMs) in the fields of biology and medicine as MRI imaging contrast agents. Due to the concern of biosafety, a long-term follow-up of the distribution and clearance of BMs after entering the body is necessary. In this study, we tracked changes of BMs in major organs of mice up to 135 days after intravenous injection using a combination of several techniques. We not only confirmed the liver as the well-known targeted organs of BMs, but also found that BMs accumulated in the spleen. Besides, two major elimination paths, as well as the approximate length of time for BMs to be cleared from the mice, were revealed. Together, the results not only confirm that BMs have high biocompatibility, but also provide a long-term in-vivo assessment which may further help to forward the clinical applications of BMs as an MRI contrast agent.

scholarly journals Fluorescent chitosan-based nanohydrogels and encapsulation of gadolinium MRI contrast agent for magneto-optical imaging

2021 ◽  
pp. 100104
Author(s):  
Juliette Moreau ◽  
Maité Callewaert ◽  
Volodymyr Malytskyi ◽  
Céline Henoumont ◽  
Sorina N. Voicu ◽  
...  
Keyword(s):  
Contrast Agent ◽  
Optical Imaging ◽  
Mri Contrast Agent ◽  
Mri Contrast
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