Zero-field birefringence of biocompatible magnetic fluids:: A concentration dependence investigation

被引：10
作者：
Elói, MTA
Azevedo, RB
Lima, ECD
Pimenta, CM
Morais, PC [1 ]
机构：
[1] Univ Brasilia, Inst Fis, BR-7919970 Brasilia, DF, Brazil
[2] Univ Brasilia, Inst Ciencias Biol, Dept Genet & Morfol, BR-70910900 Brasilia, DF, Brazil
[3] Univ Fed Goias, Inst Quim, BR-74001 Goiania, Go, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 293卷 / 01期
关键词：
biocompatibility; biocompatible magnetic fluids; maghemite; zero-field birefringence; citrate; sample dilution effect; magnetite; nanoparticles;
D O I：
10.1016/j.jmmm.2005.02.015
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Zero-field birefringence was used to investigate maghemite-based biocompatible magnetic fluids surface-coated with citrate. The model used to analyze the birefringence signal considers the dipolar magnetic interaction among dimers and the onset of a nematic phase near the sample holder surface. The data show that zero-field birefringence grows with sample dilution. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：220 / 223
页数：4
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