Diazirines as Potential Molecular Imaging Tags: Probing the Requirements for Efficient and Long-Lived SABRE-Induced Hyperpolarization.
Journal Article (Journal Article)
Diazirines are an attractive class of potential molecular tags for magnetic resonance imaging owing to their biocompatibility and ease of incorporation into a large variety of molecules. As recently reported, 15 N2 -diazirine can be hyperpolarized by the SABRE-SHEATH method, sustaining both singlet and magnetization states, thus offering a path to long-lived polarization storage. Herein, we show the generality of this approach by illustrating that the diazirine tag alone is sufficient for achieving excellent signal enhancements with long-lasting polarization. Our investigations reveal the critical role of Lewis basic additives, including water, on achieving SABRE-promoted hyperpolarization. The application of this strategy to a 15 N2 -diazirine-containing choline derivative demonstrates the potential of 15 N2 -diazirines as molecular imaging tags for biomedical applications.
Full Text
Duke Authors
Cited Authors
- Shen, K; Logan, AWJ; Colell, JFP; Bae, J; Ortiz, GX; Theis, T; Warren, WS; Malcolmson, SJ; Wang, Q
Published Date
- September 2017
Published In
Volume / Issue
- 56 / 40
Start / End Page
- 12112 - 12116
PubMed ID
- 28664640
Electronic International Standard Serial Number (EISSN)
- 1521-3773
International Standard Serial Number (ISSN)
- 1433-7851
Digital Object Identifier (DOI)
- 10.1002/anie.201704970
Language
- eng