ArticleMolecules (Basel, Switzerland)2013
Synthesis and relaxivity studies of a DOTA-based nanomolecular chelator assembly supported by an icosahedral closo-B₁₂²⁻ core for MRI: a click chemistry approach.
Article in Molecules (Basel, Switzerland), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 22 citations in OpenAlex.
- New Azido Coumarins as Potential Agents for Fluorescent Labeling and Their "Click" Chemistry Reactions for the Conjugation withMolecules (Basel, Switzerland) · 2022Article
- Synthesis of Bis(Carboranyl)amides 1,1'-μ-(CHMolecules (Basel, Switzerland) · 2021Article
- Fluorescent single-stranded DNA-based assay for detecting unchelated Gadolinium(III) ions in aqueous solution.Analytical and bioanalytical chemistry · 2016Article
- Preparation of 3-benzyloxy-2-pyridinone functional linkers: Tools for the synthesis of 3,2-hydroxypyridinone (HOPO) and HOPO/hydroxamic acid chelators.Tetrahedron · 2015Article
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
An icosahedral closo-B₁₂²⁻ scaffold based nano-sized assembly capable of carrying a high payload of Gd³⁺-chelates in a sterically crowded configuration is developed by employing the azide-alkyne click reaction. The twelve copies of DO3A-t-Bu-ester ligands were covalently attached to an icosahedral closo-B₁₂²⁻ core via suitable linkers through click reaction. This nanomolecular structure supporting a high payload of Gd³⁺-chelate is a new member of the closomer MRI contrast agents that we are currently developing in our laboratory. The per Gd ion relaxivity (r₁) of the newly synthesized MRI contrast agent was obtained in PBS, 2% tween/PBS and bovine calf serum using a 7 Tesla micro MRI instrument and was found to be slightly higher (r₁ = 4.7 in PBS at 25 °C) compared to the clinically used MRI contrast agents Omniscan (r₁ = 4.2 in PBS at 25 °C) and ProHance (r₁ = 3.1 in PBS at 25 °C).
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