Lanthanide probes for bioresponsive imaging

Marie Heffern, Lauren M. Matosziuk, Thomas J. Meade

Research output: Contribution to journalReview article

527 Scopus citations

Abstract

Two classes of lanthanide probes, luminescent and magnetic lanthanides, that are subsets of the larger area of metalloimaging, are reviewed. Lanthanide-based luminescent probes are particularly attractive for their long luminescence lifetimes. Lanthanides possess intrinsic luminescence that originates from electron transitions in the shell of the [Xe]5s 25p6 configuration and offer unique properties for optical imaging contrast agents that address current limitations of their organic counterparts. Lanthanides are typically chelated with multidentate ligands to attenuate the toxicity of free lanthanide ions. In luminescent applications, chelation serves an additional role of protecting the metal center from solvent coordination. For use as cellular probes, the chelate must form a complex that stably saturates the Ln(III) coordination sphere over a wide pH range and resists hydrolysis.

Original languageEnglish (US)
Pages (from-to)4496-4539
Number of pages44
JournalChemical Reviews
Volume114
Issue number8
DOIs
StatePublished - Apr 23 2014
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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