摘要:
A magnetic material having a magnetic heating efficiency of at least 4.5×10−8 J.m/A.g in a cyclic magnetic field where the product of the amplitude and frequency of the applied field is less than or equal to 5×108 A/m.s, and the frequency of the applied filed is at least 20 kHz. The ideal magnetic material is characterized by a perfectly rectangular hysteresis loop, i.e. loop squareness of 1, with coercivity of 25 kA/m or less and high saturation magnetization. Preferably the magnetic material has a predominately cubic magnetic crystalline anisotropy. Preferably the magnetic material is a substituted magnetite (Fe3O4) or &ggr;-ferric oxide (&ggr;Fe2O3) crystalline lattice in which some of the iron atoms in that crystalline lattice have been substituted for one or more alternate metals atoms. Desirably, the metal atom is a member of the group: cobalt, zinc, nickel, manganese, magnesium, copper, chromium, gallium, cadmium.
摘要翻译:在循环磁场中具有至少4.5×10-8Jm / Ag的磁加热效率的磁性材料,其中所施加的场的振幅和频率的乘积小于或等于5×10 8 A / ms, 所施加的场地至少为20kHz。 理想的磁性材料的特征在于具有完全矩形的磁滞回线,即1的环形矩形度,矫顽力为25kA / m以下,高的饱和磁化强度。 优选地,磁性材料具有主要立方体的磁结晶各向异性。 优选地,磁性材料是取代的磁铁矿(Fe 3 O 4)或γ-氧化铁(γFe2 O 3)晶格,其中该晶格中的一些铁原子已被一个或多个替代金属原子取代。 理想地,金属原子是钴,锌,镍,锰,镁,铜,铬,镓,镉的成员。
摘要:
The present invention relates to improved therapeutically active nanocomposite microstructure compositions, including nanoparticle compositions and nanoparticle preparations. Preferred embodiments include nanoparticle compositions comprising nanoparticles of a therapeutically active agent dispersed in a carrier matrix. The invention also relates to a method for preparing said compositions and preparations using solid-state mechanochemical synthesis. Further, it relates to therapeutic products produced using said compositions and to methods of treatment using the compositions.
摘要:
A method for producing a composition comprising nanoparticles of a biologically active compound, comprising the step of: dry milling a solid biologically active compound and a millable grinding compound in a mill comprising a plurality of milling bodies, for a time period sufficient to produce a solid dispersion comprising nanoparticles of the biologically active compound dispersed in an at least partially milled grinding compound is described as are various compositions produced using such methods.