Abstract
Aim: To examine the multimodal contrasting ability of gold-dotted magnetic nanoparticles (Au*MNPs) for magnetic resonance (MR), computed tomography (CT) and intravascular ultrasound (IVUS) imaging.
Materials & methods: Au*MNPs were prepared by adapting an impregnation method, without using surface capping reagents and characterized (transmission electron microscopy, x-ray diffraction and Fourier-transform infrared spectroscopy) with their in vitro cytotoxicity assessed, followed by imaging assessments.
Results: The contrast-enhancing ability of Au*MNPs was shown to be concentration-dependent across MR, CT and IVUS imaging. The Au content of the Au*MNP led to evident increases of the IVUS signal.
Conclusion: We demonstrated that Au*MNPs showed concentration-dependent contrast-enhancing ability in MRI and CT imaging, and for the first-time in IVUS imaging due to the Au content. These Au*MNPs are promising toward solidifying tri-modal imaging-based theragnostics.
| Original language | English |
|---|---|
| Pages (from-to) | 2433-2445 |
| Number of pages | 13 |
| Journal | Nanomedicine |
| Volume | 15 |
| Issue number | 25 |
| Early online date | 11 Sept 2020 |
| DOIs | |
| Publication status | Published - Oct 2020 |
Keywords
- Fe O magnetite nanoparticles
- Gold deposition
- MR-CT-IVUS imaging
- MRI
- computed tomography
- multimodal imaging
ASJC Scopus subject areas
- Bioengineering
- Medicine (miscellaneous)
- Biomedical Engineering
- General Materials Science
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