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Nano Lett. 2006 Jul;6(7):1459-63.

Dendrimer-based nanoprobe for dual modality magnetic resonance and fluorescence imaging.

Author information

  • 1Radiation Oncology Branch, Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892-1002, USA. martinwb@mail.nih.gov

Abstract

A novel PAMAM dendrimer-based nanoprobe for dual magnetic resonance and fluorescence imaging modalities was synthesized. Fluorescence studies revealed that Gd(III) complexation to the probe has no effect on the quantum yield; however, increases in the dye content resulted in partial quenching. The potential of the new nanoprobe, G6-(Cy5.5)(1.25)(1B4M-Gd)(145), as a dual modality imaging agent was demonstrated in vivo by the efficient visualization of sentinel lymph nodes in mice by both MRI and fluorescence imaging modalities.

PMID:
16834429
[PubMed - indexed for MEDLINE]
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