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Iodinated silica/porphyrin hybrid nanoparticles for X-ray computed tomography/fluorescence dual-modal imaging of tumors

Koichiro Hayashi, Sakamoto Wataru, Toshinobu Yogo
2014 Journal of Asian Ceramic Societies  

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Silica nanoparticles containing covalently linked iodine and a near-infrared (NIR) fluorescence dye, namely porphyrin, have been synthesized through a one-pot sol-gel reaction. These particles are called iodinated silica/porphyrin hybrid nanoparticles (ISP HNPs). The ISP HNPs have both high X-ray absorption coefficient and NIR fluorescence. The ISP HNPs modified with folic acid (FA) and polyethylene glycol (PEG), denoted as FA-PEG-ISP HNPs, enabled the successful visualization of tumors in mice
more » ... by both Xray computed tomography (CT) and fluorescence imaging (FI). Thus, the FA-PEG-ISP HNPs are useful as contrast agents or probes for CT/FI dual-modal imaging.
doi:10.1016/j.jascer.2014.09.003 fatcat:wnjzyieagjdjnhqonur2oaxj6y
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Koichiro Hayashi, Sakamoto Wataru, Toshinobu Yogo. "Iodinated silica/porphyrin hybrid nanoparticles for X-ray computed tomography/fluorescence dual-modal imaging of tumors." Journal of Asian Ceramic Societies 2.4 (2014) 429-434