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Intrinsically Zirconium-89-Labeled Manganese Oxide Nanoparticles for In Vivo Dual-Modality Positron Emission Tomography and Magnetic Resonance Imaging
Journal article   Open access

Intrinsically Zirconium-89-Labeled Manganese Oxide Nanoparticles for In Vivo Dual-Modality Positron Emission Tomography and Magnetic Resonance Imaging

Yonghua Zhan, Emily B. Ehlerding, Sixiang Shi, Stephen A. Graves, Shreya Goel, Jonathan W. Engle, Jimin Liang and Weibo Cai
Journal of biomedical nanotechnology, Vol.14(5), pp.900-909
05/01/2018
DOI: 10.1166/jbn.2018.2498
PMCID: PMC6007016
PMID: 29883560
url
https://www.ncbi.nlm.nih.gov/pmc/articles/6007016View
Open Access

Abstract

Manganese-based nanoparticles (NPs) have recently attracted much attention in the field of biomedical imaging due to their impressive enhanced T-1 contrast ability. Although the reported manganese-based NPs have exhibited good imaging capabilities as contrast agents, it is still urgent to develop novel multifunctional manganese-based imaging probes for future biomedical imaging, especially PET/MRI probes. Herein, we present chelator-free zirconium-89 (Zr-89, t(1/2): 78.4 h) labeling of manganese oxide NPs (Mn3O4@PEG) with similar to 78% labeling yield and good stability. Serial positron emission tomography (PET) and magnetic resonance imaging (MRI) studies non-invasively assessed the biodistribution patterns of the NPs and the feasibility of in vivo dual-modality imaging and lymph-node mapping. Since Mn3O4 NPs exhibited desirable properties for enhanced T-1 imaging and the simplicity of chelator-free radiolabeling, [Zr-89]Mn3O4@PEG NPs offer a novel, simple, safe and accurate nanoplatforms for future precise cancer imaging and diagnosis.
Materials Science Technology Materials Science, Biomaterials Nanoscience & Nanotechnology Science & Technology Science & Technology - Other Topics

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