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Your search keyword '"Yizhi Wen"' showing total 3 results
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3 results on '"Yizhi Wen"'

2. Non-superparamagnetic iron-oxide architectures with controlled T2 contrast ability in magnetic resonance imaging

Author

Yizhi Wen, Xiaodong Li, Yunhao He, Kezheng Chen, Qinglei Sun, Ruiyun Liu, Yunguo Wang, Ji Ma, Sizhi Zuo-Jiang, Xiaobing Zhang, Weifeng Dong, and Xingkai Wang

Subjects
Materials science, Physics and Astronomy (miscellaneous), medicine.diagnostic_test, Atomic force microscopy, Magnetic resonance imaging, Spin–spin relaxation, Nuclear magnetic resonance, Ferromagnetism, Chemical physics, Specific surface area, T2 contrast, medicine, Antiferromagnetism, Superparamagnetic iron oxide
Abstract

In this work, numerous antiferromagnetic (AFM) and weak ferromagnetic (WFM) iron oxides were fabricated and used as contrast agents in magnetic resonance imaging application. These non-superparamagnetic iron oxides exhibit r2/r1 ratios in a range of 20–110, and hence making them potential for T2 contrast enhancers. Most strikingly, a Langevin-function relationship was found between r2/r1 ratios and the specific surface area (S) values, r2/r1 ∼ L−2(S−1), which is quite unique for AFM and WFM iron oxides. This finding enables us to precisely tailor their r2/r1 ratios simply by manipulating their specific surface area via controlling morphology and structure in preparation.

Published
2015
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3. Non-superparamagnetic iron-oxide architectures with controlled T2 contrast ability in magnetic resonance imaging.

Author

Ji Ma, Xiaobing Zhang, Yunhao He, Qinglei Sun, Yunguo Wang, Sizhi Zuo-Jiang, Yizhi Wen, Ruiyun Liu, Xiaodong Li, Xingkai Wang, Weifeng Dong, and Kezheng Chen

Subjects
SUPERPARAMAGNETIC materials, MAGNETIC resonance imaging, IRON oxides, CONTRAST media, LANGEVIN equations
Abstract

In this work, numerous antiferromagnetic (AFM) and weak ferromagnetic (WFM) iron oxides were fabricated and used as contrast agents in magnetic resonance imaging application. These non-superparamagnetic iron oxides exhibit r2/r1 ratios in a range of 20-110, and hence making them potential for T2 contrast enhancers. Most strikingly, a Langevin-function relationship was found between r2/r1 ratios and the specific surface area (S) values, r2/r1~L-2(S-1), which is quite unique for AFM and WFM iron oxides. This finding enables us to precisely tailor their r2/r1 ratios simply by manipulating their specific surface area via controlling morphology and structure in preparation. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

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