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VARIATION OF SUPERPARAMAGNETIC PROPERTIES WITH IRON LOADING IN MAMMALIAN FERRITIN

被引：30
作者：
FRANKEL, RB
PAPAEFTHYMIOU, GC
WATT, GD
机构：
[1] MIT, FRANCIS BITTER NATL MAGNET LAB, CAMBRIDGE, MA 02139 USA
[2] BRIGHAM YOUNG UNIV, DEPT CHEM, PROVO, UT 84602 USA
来源：
HYPERFINE INTERACTIONS | 1991年 / 66卷 / 1-4期
关键词：
D O I：
10.1007/BF02395857
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The average blocking temperatures of ferritin molecules containing differing amounts of iron were determined by Mossbauer spectroscopy. The results imply that the magnetic anisotropy of the ferritin core particles is a function of particle volume. By addition of Fe-57 to ferritin core particles it was determined that, at a given temperature within the superparamagnetic temperature region, the "last-in" ferric ions have average relaxation times that are shorter than those of the bulk ferric ions.
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页码：71 / 82
页数：12
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