| Literature DB >> 26136858 |
Guocan Han1, Yangwei Deng2, Jihong Sun1, Jun Ling2, Zhiquan Shen2.
Abstract
Europium (Eu) is a paramagnetic lanthanide element that possesses an outstanding luminescent property. Eu complexes are ideal fluorescence imaging (FI) agents. Eu2+ has satisfactory relaxivity and optical properties, and can realize magnetic resonance (MRI)-FI dual imaging applications when used with appropriate cryptands that render it oxidatively stable. By contrast, based on the chemical exchange saturation transfer (CEST) mechanism, Eu3+ complexes can provide enhanced MRI sensitivity when used with optimal cryptands, incorporated into polymeric CEST agents or blended with Gd3+. Eu complexes are promising in MRI-FI dual imaging applications and have a bright future.Entities:
Keywords: cryptand; europium; longitudinal relaxivity; magnetic resonance imaging; transverse relaxivity
Year: 2015 PMID: 26136858 PMCID: PMC4471668 DOI: 10.3892/etm.2015.2297
Source DB: PubMed Journal: Exp Ther Med ISSN: 1792-0981 Impact factor: 2.447