| 稀土元素Gd、Ho和Dy在磁共振成像应用的研究进展 |
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| 引用本文： | 刘燕,施婷婷,吴惠霞,杨仕平.稀土元素Gd、Ho和Dy在磁共振成像应用的研究进展[J].上海师范大学学报(自然科学版),2017,46(6):807-818. |
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| 作者姓名： | 刘燕 施婷婷 吴惠霞 杨仕平 |
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| 作者单位： | 上海师范大学 生命与环境科学学院, 上海 200234,上海师范大学 生命与环境科学学院, 上海 200234,上海师范大学 生命与环境科学学院, 上海 200234,上海师范大学 生命与环境科学学院, 上海 200234 |
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| 基金项目： | 教育部环境功能材料创新团队（IRT_16R49） |
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| 摘 要： | Gd、Ho和Dy因其独特的光学和磁学性质而在生物成像等方面有着广泛的应用.在镧系元素中,Gd~(3+)具有7个不成对的电子,可以提供高的弛豫度,已被广泛地用于磁共振成像(MRI)造影剂,而Ho~(3+)和Dy~(3+)具有最短的电子弛豫时间和最高的有效磁矩,因此有良好的高场T_2弛豫效果.介绍了基于这3种稀土元素的纳米材料在MRI方面的应用.
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| 关 键 词： | 稀土 纳米材料 磁共振成像 |
| 收稿时间： | 2017/9/10 0:00:00 |
Research progress of Gd,Ho,and Dy in magnetic resonance imaging |
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| Liu Yan,Shi Tingting,Wu Huixia and Yang Shiping.Research progress of Gd,Ho,and Dy in magnetic resonance imaging[J].Journal of Shanghai Normal University(Natural Sciences),2017,46(6):807-818. |
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| Authors: | Liu Yan Shi Tingting Wu Huixia and Yang Shiping |
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| Institution: | College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China,College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China,College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China and College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China |
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| Abstract: | Gd,Ho,and Dy have been widely used in biological imaging because of their excellent optical and magnetic properties.In particular,Gd3+ is extensively applied in MRI field because Gd3+ has 7 unpaired electrons which offer high relaxation degree.Among all lanthanides,Ho3+ and Dy3+ have the most efficient T2 relaxation at high magnetic field due to their shortest electronic relaxation time and the highest effective magnetic moment.Herein,the applications of these three rare earth element-based nanomaterials in magnetic resonance imaging (MRI) are reviewed. |
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| Keywords: | rare earth nanomaterials magnetic resonance imaging |
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