Superparamagnetic gel as a novel material for electromagnetically induced hyperthermia

被引:115
作者
Babincová, M
Leszczynska, D
Sourivong, P
Cicmanec, P
Babinec, P
机构
[1] Comenius Univ, Dept Biophys & Chem Phys, MFF UK, Bratislava 84215, Slovakia
[2] FAMU FSU Coll Engn, Dept Civil Engn, Tallahassee, FL 32310 USA
[3] Univ N Dakota, Dept Phys, Grand Forks, ND 58202 USA
[4] Comenius Univ, Dept Solid State Phys, MFF UK, Bratislava 84215, Slovakia
关键词
superparamagnetic gel; electromagnetic field; Neel and Brown relaxation; hyperthermia; alternating magnetic field; micelles; specific absorption rate; gel; AC magnetic field; ferrite;
D O I
10.1016/S0304-8853(00)01237-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Heating properties of a magnetically responsive gel in an alternating magnetic field at 217 kHz were evaluated. Superparamagnetic ferrite nanocrystals of approximately 10nm were formed within the gel network by bridging anionic bis(ethylhexyl) sodium sulfosuccinate reverse micelles. Specific absorption rates up to 150 W/g for ferrite concentrations up to 50 mg/ml were observed. Temperature measurements of the gel without ferrite particles showed no heating effect. Magnetic gels therefore represent a novel promising hyperthermic material. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
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页码:109 / 112
页数:4
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