期刊
ACTA CHEMICA IASI
卷 27, 期 1, 页码 87-98出版社
SCIENDO
DOI: 10.2478/achi-2019-0007
关键词
Multifunctional nanoparticle; Super Paramagnetic Iron Oxide Nanoparticle; Carbon Dots
资金
- Isfahan University of Medical Sciences [396461]
- University of Isfahan Research Council
A multifunctional nanoparticle, Super Paramagnetic Iron Oxide Nanoparticle-Carbon Dots (SPION-CDs), for fluorescence and magnetic resonance imaging is introduced. This nanoparticle possesses the magnetic properties of super-paramagnetic iron oxide (SPION) core as well as the fluorescence characteristics of carbon dots (CDs) coated in mesoporous structure. The SPION-CDs were synthesized using a high temperature facile single-pot hydrothermal method. The products were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), X-ray diffraction (XRD), UV/vis absorption, vibrating sample magnetometer (VSM). The cytotoxic effect of SPION-CDs on OVCAR-3 cells was also evaluated. The synthesized nanoparticle possesses optimal size, low toxicity and excellent magnetic properties, including super-paramagnetic behavior (Ms = 42 emu g(-1)). Moreover, in the viewpoint of optical properties, the quantum yield of similar to 2.4% was obtained and the nanoparticle shows good fluorescence stability for cell-labeling studies. This multifunctional nanoparticle with appropriate characterization is a promising candidate for multimodal fluorescence/magnetic resonance imaging platform.
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