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      Magnetic nanoparticles: preparation, physical properties, and applications in biomedicine

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          Abstract

          Finally, we have addressed some relevant findings on the importance of having well-defined synthetic strategies developed for the generation of MNPs, with a focus on particle formation mechanism and recent modifications made on the preparation of monodisperse samples of relatively large quantities not only with similar physical features, but also with similar crystallochemical characteristics. Then, different methodologies for the functionalization of the prepared MNPs together with the characterization techniques are explained. Theorical views on the magnetism of nanoparticles are considered.

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          Monodisperse FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices

          Sun, Murray, Weller (2000)
          Synthesis of monodisperse iron-platinum (FePt) nanoparticles by reduction of platinum acetylacetonate and decomposition of iron pentacarbonyl in the presence of oleic acid and oleyl amine stabilizers is reported. The FePt particle composition is readily controlled, and the size is tunable from 3- to 10-nanometer diameter with a standard deviation of less than 5%. These nanoparticles self-assemble into three-dimensional superlattices. Thermal annealing converts the internal particle structure from a chemically disordered face-centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies. These assemblies are chemically and mechanically robust and can support high-density magnetization reversal transitions.
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            (CdSe)ZnS Core−Shell Quantum Dots:  Synthesis and Characterization of a Size Series of Highly Luminescent Nanocrystallites

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              A simplification of the protein assay method of Lowry et al. which is more generally applicable.

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                Author and article information

                Journal
                Nanoscale Res Lett
                Nanoscale Res Lett
                Nanoscale Research Letters
                Springer
                1931-7573
                1556-276X
                2012
                21 February 2012
                : 7
                : 1
                : 144
                Affiliations
                [1 ]Faculty of Pharmacy, Department of Medicinal Chemistry and Drug Applied Research Center Tabriz University of Medical Sciences, Tabriz, 51368, Iran
                [2 ]Faculity of Dentistry, Tabriz University of Medical Sciences, Tabriz, 51368, Iran
                [3 ]Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, 51368, Iran
                Article
                1556-276X-7-144
                10.1186/1556-276X-7-144
                3312841
                22348683
                5cf12c04-2df0-4bb6-9387-c396834adf92
                Copyright ©2012 Akbarzadeh et al; licensee Springer.

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 12 July 2011
                : 21 February 2012
                Categories
                Nano Review

                Nanomaterials
                biomedical applications,magnetic nanoparticles,synthetic routes,functionalization techniques,characterization

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