Nanoparticles magnetism

D. Langmuir-Blodgett Films Containing Magnetic Nanoparticles... 

A study of the effect of magnetic nanoparticle size on the monolayer behavior aimed to examine the balance between magnetic dipole forces and van der Waals interactions... 

Figure 20. Selective cell targeting via specific monoclonal antibodies and/or antibody fragments directed against cancer cells and linked to the free amino groups of L-cysteine-coated metallic-core magnetic nanoparticles (MNP) (MNP = Co, Fe/Co, size 8-10 nm).

Mossbauer spectroscopy has been extensively used for studies of nanostructured materials and several reviews on magnetic nanoparticles have been published, see e.g. [6-8, 46 8]. The magnetic properties of nanoparticles may differ from those of bulk materials for several reasons. The most dramatic effect of a small particle size is that the magnetization direction is not stable at finite temperatures, but fluctuates. 

Numerous experimental studies have shown that the magnetic hyperfine field of magnetic nanoparticles varies linearly with temperature at low temperatures, in accordance with (6.23). This is in contrast to bulk materials for which the decrease in the hyperfine field with increasing temperature in accordance with spin wave... 

Tartaj, P., Morales, M.P., Verdaguer, S.V., Carreno, T.G. and Serna, C.J. (2006) Synthesis, Properties and Biomedical Application of Magnetic Nanoparticle Handbook of Magnetic Materials, Elesevier, Amsterdam. 

Hyeon, T. (2003) Chemical synthesis of magnetic nanoparticles. Chemical Communications, (8), 927-934. 

Lu, A.H., Salabas, E.L. and Schuth, F. (2007) Magnetic nanoparticles synthesis, protection, functionalization, and application. Angewandte Chemie International Edition, 46 (8), 1222-1244. 

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