Fe. O, nanoparticles

Morales et al. report the synthesis and proton relaxivity of colloidal dextran-coated Fe-O nanoparticles approximately 50 nm in diameter with a unimodal size distribution. Kim et a/. report the synthesis and relaxation properties of starch-coated Fe-O nanoparticles 6 nm in diameter. 

S. W. Phang, N. Kuramoto, Microwave Absorption Property of Polyaniline Nanocomposites Containing TiO and Fe O Nanoparticles after FeCl 6HjO Treatment. Polym Compos 2010, NA-NA. 

Reddy PM, Chang K-C, Liu Z-J, Chen C-T, Ho Y-P. Evaluation of functionalized magnetic iron oxide (Fe O,) nanoparticles for capturing gram-positive and gram-negative bacteria. J Biomed Nanotechnol. 2014 10 11. 

Yakacki, C. M., Satarkar, N. S., Gall, K., Likos, R., Hilt, J. Z. (2009), Shape-memory polymer networks with FE O nanoparticles for remote activation. Journal of Applied Polymer Science, 112, 3166—76. 

Nanofibers with incorporated super paramagnetic Fe O nanoparticles serve as an example the carrier should be possible with the application of an external magnetic field. 

In this study we present the first in-situ formation of a ternary transition metal oxide within the pores of MCM-48 silica. XRD measurements showed the preservation of the host structure as well as the formation of 5-6 nm small particles. In addition, the analysis of nitrogen physisorption data revealed the existence of mesopores with smaller pore diameters and surface areas in comparison to the pristine phase, which can be attributed to the introduction of the Co/Fe/O phase into the pores. First qualitative XANES and EXAFS analyses support the formation of CoFe204 nanoparticles. TEM investigations on particle size and structure are in progress. To learn more about the properties of the oxide nanoparticles Mossbauer and magnetic measurements have to be carried out, which are planned for the future. 

Sheng-Fu Wang, Tan Yu-Mei (2007) A novel amperometric immunosensor based on Fe O magnetic nanoparticles/chitosan composite film for determination of ferritin. Anal Bioanal Chem 387 703-708... 

Lin, J., Zhou, W., Kumbhar, A., Wiemann, J., Fang, J., Carpenter, E.E. and O Connor, C.J. (2001) Gold-coated iron (Fe-Au) nanoparticles Synthesis, characterization, and magnetic field-induced self-assembly./. Solid State Chem., 159, 26-31. 

Fig. 11 Schematic representation of a preparation of cell targeted ferritin with the binding RGD-4C peptide on the exterior surface of apo-Fr including Fe O, b preparation of a Pd nanoparticle in apo-Fr and olefin hydrogenation, c hydrogen production reaction using Pt apo-Hsp, and d encapsulation of horseradish peroxidase (HRP) in the cavity of CCMV and an enzymatic reaction...

A second metallic contaminant of interest is Cr. Remediation of Cr-contaminated soils is centered around the reduction of Cr(VI), a more toxic and soluble form, to Cr(III), which is considerably less soluble and which readily precipitates out of solution. A number of different nanoparticles have been shown to possess this capability, including ferritin protein cages containing fenihydrite (Fe(O)OH), palladium (Pd) nanoparticles, and carboxymethyl cellulose (CMC)-stabilized Fe ) (87, 89, 93). In both the ferritin cages and the CMC-Fe p), the active species was a form of Fe, either Fe(0) in the case of the CMC-Fe p), or Fe(II) in the case of the ferritin cages. The reaction known to reduce Cr(VI) utilizing Fe(II) is shown in Equation (20.2). 

In the case of Ni-La-Fe-O/epoxy nanocomposites, the thermal degradation showed a more complicated behavior than the neat epoxy resin, with two peaks in the 300-475 °C temperature range. Moreover, the thermal stability of the resin decreased in the presence of Ni-La-Fe-0 nanoparticles, due to the fact that these nanoparticles may act as catalysts to degrade the epoxy matrix [76]. 

Magnehc nanoparticles have been synthesized with a number of different composi-hons and phases, including iron oxides, such as Fe O and y-Fe203, pure metals, such as Fe and Co, spinel type ferromagnets, such as NiFe O, MuFejO/ ", as weU as alloys, such as CoPtj - and FePt. ... 

Infrared analysis of unsubstituted magnetite nanoparticles showed the stretches from Fe-O at 560 cm . Once amino propyl trimethyl silane (APTS) was attached to the surface, additionally C—H stretches at (2949, 2866 cm ) and Si—O stretches at 1015 cm were found. In the final G3-PAMAM MNP N-H and... 

G. Zhao, J. Wang, X. Peng, Y. Li, X. Yuan, and Y. Ma, Facile solvothermal synthesis of mesostructured Fe O /chitosan nanoparticles as delivery vehicles for pH-responsive drug delivery and magnetic resonance imaging contrast agents, Chem Asian J, 9 (2), 546-553, 2013. 

Fig. 16.10 Plot showing kinetics of C CljNOj reduction (fiUed circles) occurring in conjunction with increasing photon correlation spectrometry (PCS) count rates (open circles), which are indicative of particle formation, in reaction with O.SOmM Fe(ll) (pH 7.0). (For clarity, the symbols showing measured values of [C CljNOJ are connected point to point.) The other open symbols show PCS count rates in nonreaction mixtures (i.e., without C Cl NO ) containing either O.SOmM Fe(II) (pH 7.0) or O.SOmM Ca(ll) (pH 7.0). Reprinted with permission from Klupinski TP, Chin YP, Traina SJ (2004) Abiotic degradation of pentachloronitrobenzene by Fe(ll) Reactions on goethite and iron oxide nanoparticles. Environ Sci Technol 3S 4353-4360. Copyright 2004 American Chemical Society...

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