Magnetite marker

The system is fully compatible with MR imaging systems. Magnetite markers on the laser applicator... 

First of all a magnetite marker is placed for verification of the positioning of the laser application systems. After verifying the correct positioning of the laser application systems in relation to the lesion, the magnetite markers are removed and the laser applicator inserted in the laser application system. 

Blesa, M. (1994) Morphological properties of a-FeOOH, y-FeOOH and Fej04 obtained by oxidation of aqueous Fe(II) solutions. J. Colloid Interface Sd. 165 244-252 Dong, H. Fredrickson, J.K. Kennedy, D.W. Za-chara, J.M. Kukkadapu, R.K. Onstott,T.C. (2000) Mineral transformations associated with the microbial reduction of magnetite. Chem. Geol. 169 299-318 Donnay J.D.H. Marker, D. (1935) A new law... 

The material can act as marker and the nanoparticle can be further functionalized (magnetite, quantum dots)... 

So-called dual-marker particles are functionalized with dye and magnetite simultaneously. Magnetite label can be detected in vivo by altering the contrast in magnetic resonance tomography experiments, while the location of the fluorescent dye can be investigated by fluorescence or confocal laser scanning microscopy [47 9],... 

CdTe semiconductor nanocrystaline luminescent markers together with magnetite nanoparticles were firstly included into polymer microcapsules to control capsules remotely via magnetic field. Embedding magnetic nanoparticles in microcapsule shells gives an opportunity to control capsule transfer and shell permeability. For example, the authors of. used goldcobalt nanoparticles to "open" capsules remotely. 

The mechanical properties were investigated in some early studies. In these studies, the creep properties [111], tensile strengths [112], flow stress [113] and high temperature hardness [113,114] of various oxides were measured. The mechanical properties of wustite were also related to scale-steel interface adhesion [115] and marker movement [116] in the wustite scale layer. Based on these early studies, it was concluded that at temperatures above 800°C, wustite was deformable, and even in the range of 650-800°C, wustite still possessed certain plasticity [117], while magnetite and hematite were not deformable even at 1000°C. 

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