期刊
BIOMATERIALS
卷 35, 期 9, 页码 2981-2986出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2013.12.032
关键词
Nanoparticles; Tungsten oxide; Contrast agent; Micro-CT; X-ray imaging; Preclinical imaging
Inorganic nanomaterials based on heavy elements represent a new class of contrast agents for X-ray computed tomography (CT). Recent advances have shown that these materials are highly suited for CT imaging due to their high density and X-ray absorption capabilities. In this contribution, we demonstrated that tungsten oxide (WO3) nanoparticles coated by poly-epsilon-caprolactone (PCL) can be used as efficient contrast agent for CT imaging. The obtained particles were characterized by electron microscopy (TEM and SEM), and dynamic light scattering (DLS). We also validated their use for enhanced in vivo imaging, since these nanoparticles were observed to display high X-ray attenuation properties and circulation time (up to 3 h), permitting blood pool imaging. (C) 2013 Elsevier Ltd. All rights reserved.
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