Gadolinium Manganese Ions
Gadolinium Manganese Ions - Related Videos
05:15
An Aptamer-based Sensor for Unchelated Gadolinium(III)
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2017
The use of polydeoxynucleotide (44-mer aptamer) molecules for sensing unchelated gadolinium(III) ion in an aqueous solution is described. The presence of the ion is detected via an increase in the fluorescence emission of the sensor.
08:36
Functional Neuroimaging Using Ultrasonic Blood-brain Barrier Disruption and Manganese-enhanced MRI
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Cited by 4 •
2012
A technique is described for broadly opening the blood-brain barrier in the mouse using microbubbles and ultrasound. Using this technique, manganese can be administered to the mouse brain. Because manganese is an MRI contrast agent that accumulates in depolarized neurons, this approach enables imaging of neuronal activity.
10:07
Improving Thermoelectric Properties of Bi2Te3 Thin Films By Manganese Co-Sputtering
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2026
A radiofrequency co-sputtering protocol was developed to fabricate manganese-doped Bi2Te3 thin films and evaluate how manganese input influences structural and thermoelectric transport properties. Moderate manganese incorporation improved film uniformity and power-factor-related transport behavior, while higher manganese input increased structural disorder and resistivity.
09:02
Manganese Oxide Nanoparticle Synthesis by Thermal Decomposition of Manganese(II) Acetylacetonate
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Cited by 7 •
2020
This protocol details a facile, one-pot synthesis of manganese oxide (MnO) nanoparticles by thermal decomposition of manganese(II) acetylacetonate in the presence of oleylamine and dibenzyl ether. MnO nanoparticles have been utilized in diverse applications including magnetic resonance imaging, biosensing, catalysis, batteries, and waste water treatment.
03:24
Common Ion Effect
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2020
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide: This solubility equilibrium may be shifted left by the addition of either silver(I) or iodide ions, resulting in...
FAQs
Coordination with a chelating complex determines how gadolinium is presented in an imaging system and supports its use for T1-weighted MRI contrast. The ion’s unpaired electrons influence the relaxation behavior of nearby water protons, while the chelate helps control chemical stability and distribution. Consequently, coordination chemistry is central to designing effective gadolinium-based imaging agents.
Manganese can enter cells through calcium-related pathways, linking its distribution to biological processes that affect cellular uptake. Once present, its paramagnetic properties alter nearby water-proton relaxation and can contribute to MRI contrast. This behavior makes manganese useful when imaging strategies need to reflect cell function or biological responsiveness rather than only anatomical location.
Selection depends on the intended imaging behavior, coordination chemistry, stability, distribution, and potential toxicity. Gadolinium is primarily associated with T1-weighted contrast when delivered in a chelated complex, whereas manganese can support biologically responsive contrast through cellular entry pathways. Comparing these properties helps researchers match an ion-containing design to a specific tissue or cellular objective.
Development begins by matching the ion’s magnetic and biological behavior to the intended purpose, such as general MRI contrast, targeted imaging, or monitoring cell function. Researchers then consider the coordination environment, stability, distribution, and potential toxicity of the design. These considerations guide the creation of chelated agents, targeted probes, or metal-containing biomaterials for imaging studies.
These ions are useful when researchers need to monitor anatomy, cell function, or tissue environments with magnetic resonance methods. Gadolinium-based designs can support T1-weighted anatomical imaging, while manganese-containing approaches can provide contrast linked to cellular behavior. Both ions can also be incorporated into targeted imaging probes or metal-containing biomaterials, depending on the research goal.
Gadolinium-based approaches generally emphasize T1-weighted MRI enhancement through delivery in a chelated complex. Manganese-based approaches can add biological responsiveness because manganese may enter cells through calcium-related pathways. This distinction influences whether a design primarily targets contrast generation under controlled chemical coordination or seeks information associated with cellular activity and distribution.