比较细菌磁小体和合成的铁氧纳米粒子作为MR分子探针对氢质子的弛豫增强效果

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	比较细菌磁小体和合成的铁氧纳米粒子作为MR分子探针对氢质子的弛豫增强效果; Comparison of the 1H NMR Relaxation Enhancement Produced by Bacterial Magnetosomes and Synthetic Iron Oxide Nanoparticles for Potential Use as MR Molecular Probes
	胡丽丽
刊名	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
	2010
其他题名	Comparison of the 1H NMR Relaxation Enhancement Produced by Bacterial Magnetosomes and Synthetic Iron Oxide Nanoparticles for Potential Use as MR Molecular Probes
通讯作者	胡丽丽
中文摘要	Iron oxide nanoparticle, named synthetic magnetite,as contrast agent has been widely used in clinical MRI. Recently,a new magnetite nanocrystal, called agnetosome, has been found in magnetotactic bacteria. Physicochemical and magnetorelaxo-metric characterization of bacteria magnetosomes and iron oxide anoparticles are investigated. Bacterial magnetosomes have the larger mean aggregate size, better dispersion and obviously stronger ferromagnetism compared to synthetic magnetites. The samples of several concentrations of magnetic nanoparticles were analyzed using a clinical 3.0 T MR-scanner. The signal decay in the Magnetic Resonance images is found to change proportionally to the nanoparticles concentration. Two kinds of nanoparticles can be though as a negative contrast agent and show slight effects on ？？？？, but strong effects on ？？ weighted images. Notice that at the same concentration the signal attenuation of bacterial magnetite samples is more obvious than that of synthetic magnetite samples.
学科主题	医学影像学
收录类别	1,4
公开日期	2010-09-29
附注	Iron oxide nanoparticle, named synthetic magnetite,as contrast agent has been widely used in clinical MRI. Recently,a new magnetite nanocrystal, called agnetosome, has been found in magnetotactic bacteria. Physicochemical and magnetorelaxo-metric characterization of bacteria magnetosomes and iron oxide anoparticles are investigated. Bacterial magnetosomes have the larger mean aggregate size, better dispersion and obviously stronger ferromagnetism compared to synthetic magnetites. The samples of several concentrations of magnetic nanoparticles were analyzed using a clinical 3.0 T MR-scanner. The signal decay in the Magnetic Resonance images is found to change proportionally to the nanoparticles concentration. Two kinds of nanoparticles can be though as a negative contrast agent and show slight effects on ？？？？, but strong effects on ？？ weighted images. Notice that at the same concentration the signal attenuation of bacterial magnetite samples is more obvious than that of synthetic magnetite samples.
内容类型	期刊论文
源URL	[http://ir.iee.ac.cn/handle/311042/893]
专题	电工研究所_电磁成像技术研究组_电磁成像技术研究组_期刊论文
推荐引用方式 GB/T 7714	胡丽丽. 比较细菌磁小体和合成的铁氧纳米粒子作为MR分子探针对氢质子的弛豫增强效果, Comparison of the 1H NMR Relaxation Enhancement Produced by Bacterial Magnetosomes and Synthetic Iron Oxide Nanoparticles for Potential Use as MR Molecular Probes[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2010.
APA	胡丽丽.(2010).比较细菌磁小体和合成的铁氧纳米粒子作为MR分子探针对氢质子的弛豫增强效果.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY.
MLA	胡丽丽."比较细菌磁小体和合成的铁氧纳米粒子作为MR分子探针对氢质子的弛豫增强效果".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (2010).