Iron oxide nanocrystals

Tan, Y.W., Zhuang, Z.B., Peng, Q. and Li, Y.D. (2008) Room-temperature soft magnetic iron oxide nanocrystals ... 

Yu, W.W., Falkner, J.C., Yavuz, C.T. and Colvin, V.L. (2004) Synthesis of monodisperse iron oxide nanocrystals by thermal decomposition of iron carboxylate salts. Chemical Communications, (20), 2306-2307. 

Gonzales M, Krishnan MK (2005) Synthesis of magnetoliposomes with monodisperse iron oxide nanocrystal cores for hyperthermia. J Magn Magn Mater 293 265-270... 

Figure 6.1 Transmission electron microscopy (TEM) images of monodisperse nanocrystals. They are iron oxide nanocrystals synthesized by the heat-up method introduced in Section 6.5. The scale bar in the left picture is 2 p.m and the ones on the right are 10 nm.

Heat-up is a simple but effective method of synthesizing highly uniform nanocrystals, which yields a degree of size uniformity comparable to that of the best result from the hot injection method. This method is adopted mainly for the synthesis of metal oxide nanocrystals. In this section, we describe the synthetic procedure of iron oxide nanocrystals via the heat-up method as a representative example (23-25). 

The precursors used for the iron oxide nanocrystal synthesis via the heat-up method are various iron carboxylatc complexes, including the most widely used iron-oleate complex. Generally, when heated, metal carboxylatc complexes thermally decompose at temperatures near 300°C or higher to produce metal oxide nanocrystals along with some byproducts, such as CO, CO2, H2, water, ketones, esters, and various hydrocarbons. It is thought that the decomposition reaction proceeds via the formation of thermal See radicals liom metal carboxylatc (26, 27) ... 

Figure 6.14 The temporal change of the number concentration of iron oxide nanocrystals (left). The time evolution of their mean size and the relative standard deviation are shown together (right). The time is set as zero when solution temperature just reached 320°C, just the same as in Figure 6.13.

Figure 3.130 (a) Iron oxide nanocrystals decomposing iron oleate. The inset shows a... 

Corot, C., Robert, P., Idee, J.M., Port, M. Recent advances in iron oxide nanocrystal technology for medical imaging. Adv. Drug Delivery Rev. 58, 1471-1504 (2006)... 

Jain, P. K., Xiao, Y, Walswoith, R., and Cohen, A. E. (2009) Surface plasmon resonance enhanced magneto-optics (SuPREMO) Faraday rotation enhancement in gold-coated iron oxide nanocrystals. Nano Lett, 9,1644-1650. 

Figure 42.8 Schematic representation of the performance of temperature-responsive nanosystems consisting of PEI/NIPAM grafted onto MSNPs encapsulating iron oxide nanocrystals. The thermoresponsive polymer plays a dual role capping the mesopore entrances to prevent leakage of the drugs hosted Into...

S.M. Clark, S.G. Prilliman, C.K. Erdonmez, A.P. Alivisatos, Size dependence of the pressure-induced gamma to alpha structural phase transition in iron oxide nanocrystals. Nanotechnology 16(12), 2813-2818 (2005)... 

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