Preparation and characterization of ultra-stable biocompatible magnetic fluids using citrate-coated cobalt ferrite nanoparticles

被引：90

作者：

Morais, P. C. ^{[1
]}

Santos, R. L.

Pimenta, A. C. M.

Azevedo, R. B.

Lima, E. C. D.

机构：

[1] Univ Brasilia, Inst Fis, Nucleo Fis Aplicada, BR-70919970 Brasilia, DF, Brazil

[2] Univ Fed Goias, Inst Quim, BR-74001970 Goiania, Go, Brazil

[3] Univ Brasilia, Inst Ciencias Biol, BR-70910900 Brasilia, DF, Brazil

来源：

THIN SOLID FILMS | 2006年 / 515卷 / 01期

关键词：

biocompatible magnetic fluids; biocompatible ferrofluids; colloidal stability; ADSORPTION; GOETHITE; CELLS; ACID; MICE;

D O I：

10.1016/j.tsf.2005.12.079

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Preparation and characterization of ultra-stable biocompatible cobalt ferrite-based magnetic fluids has been reported. Synthesized samples have core particle diameter in the range of 4.7 to 14.8 nm, as indicated by TEM. Chemical and crystalline data show that the prepared nanoparticles are cobalt ferrite with a slight deviation from the Fe: Co:: 2: 1 stoichiometry. ATR-FTIR spectroscopy was used to investigate the citrate adsorption onto the nanoparticle surface. The fitted adsorption time-constants were 0.006 and 0.033 min(-1) for nanoparticle diameter of 4.7 and 14.8 nm, respectively. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：266 / 270

页数：5

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