Magnetically responsive composition

A - Human Necessities – 61 – K

Patent

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Details

A61K 9/16 (2006.01) A61K 9/00 (2006.01) A61K 9/14 (2006.01) A61K 9/50 (2006.01)

Patent

CA 2317019

A magnetically controllable, or guided, ferrocarbon particle composition and methods of use and production are disclosed. The composition may optionally carry biologically active substances that have been adsorbed onto the particle. The composition comprises composite, volume-compounded particles of 0.1 to 5.0 µm in size, and preferably between 0.5 and 5.0 µm, containing 1.0 to 95.0 % by mass of carbon, and preferably from about 20 % to about 60 %. The particles may be produced by mechanical milling of a mixture of iron and carbon powders. The obtained particles are optionally placed in a solution of a biologically active substance to adsorb the substance onto the particles. The composition is generally administered in suspension.

L'invention se rapporte à une composition de particules de ferro-carbone susceptibles d'être commandées ou guidées magnétiquement et à des procédés de production et d'utilisation d'une telle composition. Ladite composition peut éventuellement transporter des substances biologiquement actives qui ont été adsorbées sur les particules. Elle comporte des particules composites, à volume ramassé de taille comprise entre 0,1 et 5,0 µm, de préférence entre 0,5 et 5,0 µm, et contenant de 1,0 à 95,0 % en masse de carbone, et de préférence de 20 % environ à 60 % environ. Il est possible de produire ces particules par broyage mécanique d'un mélange de poudres de fer et de carbone. On peut ensuite éventuellement introduire les particules obtenues dans une solution d'une substance biologiquement active de manière que les particules absorbent ladite substance. Cette composition est généralement administrée en suspension.

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