AS1411 aptamer-conjugated Gd2O3:Eu nanoparticles for target-specific computed tomography/magnetic resonance/fluorescence molecular imaging. Kuo, T., Lai, W., Li, C., Wun, Y., Chang, H., Chen, J., Yang, P., & Chen, C. Nano Research, 7(5):658–669, 2014.
doi  abstract   bibtex   
Europium-doped gadolinium oxide (Gd2O3:Eu) nanoparticles have been synthesized, and then their surfaces have been conjugated with nucleolintargeted AS1411 aptamer to form functionalized target-specific Gd2O3:Eu nanoparticles (A-GdO:Eu nanoparticles). The A-GdO:Eu nanoparticles present strong fluorescence in the visible range, high magnetic susceptibility, X-ray attenuation and good biocompatibility. The A-GdO:Eu nanoparticles have been applied to test molecular expression of nucleolin highly expressed CL1-5 lung cancer cells under a confocal microscope. Fluorescence imaging clearly reveals that the nanoparticles can be applied as fluorescent tags for cancer-targeting molecular imaging. Furthermore, taking together their excellent T 1 contrast and strong computed tomography (CT) signal, the A-GdO:Eu nanoparticles demonstrate a great capability for use as a dual modality contrast agent for CT and magnetic resonance (MR) molecular imaging. Animal experiments also show that the A-GdO:Eu nanoparticles are able to contrast the tissues of BALB/c mice using CT modality. Moreover, the obvious red fluorescence of A-GdO:Eu nanoparticles can be visualized in a tumor by the naked eye. Overall, our results demonstrate that the A-GdO:Eu nanoparticles can not only serve as new medical contrast agents but also as intraoperative fluorescence imaging probes for guided surgery in the near future. [Figure not available: see fulltext.] © 2014 Tsinghua University Press and Springer-Verlag Berlin Heidelberg.
@article{kuo_as1411_2014,
	title = {{AS1411} aptamer-conjugated {Gd2O3}:{Eu} nanoparticles for target-specific computed tomography/magnetic resonance/fluorescence molecular imaging},
	volume = {7},
	issn = {19980000},
	doi = {10.1007/s12274-014-0420-4},
	abstract = {Europium-doped gadolinium oxide (Gd2O3:Eu) nanoparticles have been synthesized, and then their surfaces have been conjugated with nucleolintargeted AS1411 aptamer to form functionalized target-specific Gd2O3:Eu nanoparticles (A-GdO:Eu nanoparticles). The A-GdO:Eu nanoparticles present strong fluorescence in the visible range, high magnetic susceptibility, X-ray attenuation and good biocompatibility. The A-GdO:Eu nanoparticles have been applied to test molecular expression of nucleolin highly expressed CL1-5 lung cancer cells under a confocal microscope. Fluorescence imaging clearly reveals that the nanoparticles can be applied as fluorescent tags for cancer-targeting molecular imaging. Furthermore, taking together their excellent T 1 contrast and strong computed tomography (CT) signal, the A-GdO:Eu nanoparticles demonstrate a great capability for use as a dual modality contrast agent for CT and magnetic resonance (MR) molecular imaging. Animal experiments also show that the A-GdO:Eu nanoparticles are able to contrast the tissues of BALB/c mice using CT modality. Moreover, the obvious red fluorescence of A-GdO:Eu nanoparticles can be visualized in a tumor by the naked eye. Overall, our results demonstrate that the A-GdO:Eu nanoparticles can not only serve as new medical contrast agents but also as intraoperative fluorescence imaging probes for guided surgery in the near future. [Figure not available: see fulltext.] © 2014 Tsinghua University Press and Springer-Verlag Berlin Heidelberg.},
	number = {5},
	journal = {Nano Research},
	author = {Kuo, Tsungrong and Lai, Weiyun and Li, Chenghung and Wun, Yanjhan and Chang, Huancheng and Chen, Jinnshiun and Yang, Panchyr and Chen, Chiachun},
	year = {2014},
	keywords = {aptamer, contrast agent, molecular imaging, nanoparticles synthesis},
	pages = {658--669},
}

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