Coating optimization of superparamagnetic iron oxide nanoparticles for high T2 relaxivity.
Coating optimization of superparamagnetic iron oxide nanoparticles for high T2 relaxivity.
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DOI:
10.1021/nl102623x
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发表时间:
2010-11-10
期刊:
影响因子:
10.8
通讯作者:
Bao G
中科院分区:
文献类型:
--
作者:
Tong S;Hou S;Zheng Z;Zhou J;Bao G
We describe a new method for coating superparamagnetic iron oxide nanoparticles (SPIOs) and demonstrate that, by fine-tuning the core size and PEG coating of SPIOs, the T2 relaxivity per-particle can be increased by > 200 fold. With 14 nm core and PEG1000 coating, SPIOs can have T2 relaxivity of 385 s−1mM−1, which is among the highest of all SPIOs reported. In vivo tumor imaging results demonstrated the potential of the SPIOs for clinical applications.
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