A bis-hydrated Gd3+ complex based on tris acetic acid-1,4,7,10-tetraazacyclododecane (DO3A) that was functionalized with aza-15-crown-5 demonstrated a nearly optimal water-exchanging rate (k ex = 3.1 × 107 s-1) and low acute cytotoxicity. Efficient magnetic resonance signal intensity enhancements and prolonged residence lifetime induced by this small molecular complex in vivo were demonstrated even with one-fifth of the standard dosage used in the clinic.
ASJC Scopus subject areas
- General Chemistry
- Organic Chemistry
- Clinical Biochemistry
- General Biochemistry, Genetics and Molecular Biology