What question did this study set out to answer?

To develop a modular architecture using click chemistry for synthesizing multiplexed magnetic resonance probes and optimize their relaxivity by modulating linker length.

March 17, 2011Journal of the American Chemical Society

A Modular System for the Synthesis of Multiplexed Magnetic Resonance Probes

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Authors

DMDaniel J. MastaroneNorthwestern University VHVictoria S. R. HarrisonNorthwestern University AEAmanda L. EckermannKarlsruhe Institute of Technology

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Implication

Experimental study demonstrates enhanced relaxivity in modular multiplexed gadolinium probes, suggesting a scalable pathway to highly sensitive magnetic resonance imaging agents.

Key Points

To develop a modular architecture using click chemistry for synthesizing multiplexed magnetic resonance probes and optimize their relaxivity by modulating linker length.
Assembled azide-bearing Gd(III) chelates onto a trialkyne scaffold using click chemistry while varying linker lengths between the chelate and scaffold.
Assessed coordination geometry and molecular dynamics using X-ray crystallography and nuclear magnetic resonance dispersion (NMRD) spectroscopy at 310 K.
Decreasing linker length significantly increased relaxivity, accompanied by a 10-fold increase in rotational correlation time from 0.049 to 0.60 ns at 310 K.
The multinuclear center demonstrated a 500% increase in per-Gd relaxivity at 1.41 T and a 170% increase at 9.4 T compared to conventional small-molecule contrast agents.
Crystallographic analysis confirmed that azide modification does not disrupt lanthanide coordination.

Cite This Study

Mastarone et al. (2011) studied this question.

synapsesocial.com/papers/6a03ac4f2a28ec6b2ef01691 https://doi.org/10.1021/ja1099616

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Implication

Experimental study demonstrates enhanced relaxivity in modular multiplexed gadolinium probes, suggesting a scalable pathway to highly sensitive magnetic resonance imaging agents.

A Modular System for the Synthesis of Multiplexed Magnetic Resonance Probes

Discussion

Member takes

Implication

Key Points

Cite This Study

A Modular System for the Synthesis of Multiplexed Magnetic Resonance Probes

Discussion

Member takes

Implication

Key Points

Cite This Study

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