Ferrofluids: properties and applications

Magnetic fluids may be classified as ferrofluids (FF), which are colloidal suspensions of very fine (» 10 nm) magnetic particles, and magnetorheological fluids, which are suspensions of larger, usually non-stable, magnetic particles. We review the general classification and the main properties of FF, some theoretical models and a few applications. We consider the stability of a FF in terms of various forces and torques on the magnetic particles. We discuss thermodiffusion, which is an important phenomenon in FF, and which gives rise to the Soret effect. We also consider the rotational dynamics of the magnetic moments of the particles. A large portion of this review is dedicated to applications of FF, including a few of the many technological applications. Among the uses of a FF in the study of materials, we have selected the doping of liquid crystals. Among the very promising uses in Medicine, we discuss drug targeting, hyperthermia, cell separation, and contrast in magnetic resonance imaging. We also make some comments on directions for future research on the properties of ferrofluids.

[1]  Julien Siebert.  THESE DE DOCTORAT DE L'UNIVERSITE , 2005 .

[2]  P. Gennes,et al.  The physics of liquid crystals , 1974 .

[3]  C Alexiou,et al.  Clinical applications of magnetic drug targeting. , 2001, The Journal of surgical research.

[4]  A. M. F. Neto,et al.  The physics of lyotropic liquid crystals , 2005 .

[5]  A. M. F. Neto,et al.  The Physics of Lyotropic Liquid Crystals: Phase Transitions and Structural Properties , 2005 .

[6]  C. Bárcena,et al.  APPLICATIONS OF MAGNETIC NANOPARTICLES IN BIOMEDICINE , 2003 .

[7]  P. Mazur,et al.  Non-equilibrium thermodynamics, , 1963 .

[8]  K. Raj,et al.  Commercial applications of ferrofluids , 1990 .

[9]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[10]  Fritz G. Parak,et al.  Targeted Tumor Therapy with “Magnetic Drug Targeting”: Therapeutic Efficacy of Ferrofluid Bound Mitoxantrone , 2002 .

[11]  J. Israelachvili.  Intermolecular and surface forces , 1985 .

[12]  Owen P. Leary,et al.  40: PATIENT-SPECIFIC PROGNOSTICATION AFTER TBI IS RELATED TO BLEED PHENOTYPE AND ANATOMIC LOCATION , 2006, Testament d'un patriote exécuté.

[13]  Lev Davidovich Landau,et al.  Mécanique des fluides , 1989 .

[14]  Iam-Choon Khoo,et al.  Liquid Crystals: Physical Properties and Nonlinear Optical Phenomena , 1994 .

[15]  N. A. Brusentsov,et al.  Magnetic fluid hyperthermia of the mouse experimental tumor , 2002 .

[16]  E. W. Morris.  No , 1923, The Hospital and health review.

[17]  E Blums,et al.  Heat and mass transfer in MHD flows , 1987 .

[18]  P. Sheng,et al.  Introduction to Liquid Crystals , 1976 .

[19]  MAT , 2020, Encyclopedic Dictionary of Archaeology.