Jump to main content
Jump to site search

Issue 3, 2018
Previous Article Next Article

Eumelanin–Fe3O4 hybrid nanoparticles for enhanced MR/PA imaging-assisted local photothermolysis

Author affiliations

Abstract

In this work, we report on biodegradable eumelanin–Fe3O4 hybrid nanoparticles (euMel–Fe3O4 NPs) for multiple imaging-assisted local photothermolysis. The euMel–Fe3O4 NPs are rationally prepared via a facile one-step co-precipitation method in the aqueous phase in the presence of eumelanin. The obtained NPs exhibited high stability and aqueous dispersity. euMel–Fe3O4 NPs could provide T2-weighted magnetic resonance (MR) and photoacoustic (PA) imaging contrast enhancement prior to the treatment, due to their high r2 relaxivity that was determined to be 245.88 mM−1 s−1 (a value higher than those for other commercially available iron oxide NPs) and good PA signal intensity. Besides, with effective NIR absorbance, the euMel–Fe3O4 NPs promoted an effective photothermolysis treatment in an experimental mouse model of cancer. Cytotoxicity and in vivo histological examination demonstrated no appreciable toxicity. Our work suggests that euMel–Fe3O4 NPs could be proposed as a potential class of theranostic nanoplatform with multiple imaging modalities for cancer therapy.

Graphical abstract: Eumelanin–Fe3O4 hybrid nanoparticles for enhanced MR/PA imaging-assisted local photothermolysis

Back to tab navigation

Supplementary files

Article information


Submitted
01 Jan 2018
Accepted
16 Jan 2018
First published
17 Jan 2018

Biomater. Sci., 2018,6, 586-595
Article type
Paper

Eumelanin–Fe3O4 hybrid nanoparticles for enhanced MR/PA imaging-assisted local photothermolysis

J. Wang, H. Liu, Y. Liu, C. Chu, Y. Yang, Y. Zeng, W. Zhang and G. Liu, Biomater. Sci., 2018, 6, 586
DOI: 10.1039/C8BM00003D

Social activity

Search articles by author

Spotlight

Advertisements