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    • 7. 发明专利
    • Water-dispersible magnetic nano-particle
    • 水分散磁性纳米颗粒
    • JP2007217331A
    • 2007-08-30
    • JP2006039109
    • 2006-02-16
    • Fujifilm Corp富士フイルム株式会社
    • KOJIMA MASAYOSHIHIRAI HIROYUKI
    • A61K33/26A61F7/00A61K9/14A61K41/00A61K49/00A61N2/08B82B1/00C07K14/00C07K14/475C07K14/78C07K16/00C07K17/14G01N33/553
    • PROBLEM TO BE SOLVED: To provide a water-monodispersible magnetic nano-particle having a physiologically active substance on the surface and to provide a simple method for producing the magnetic nano-particle with high general-purpose properties thereof. SOLUTION: The magnetic nano-particle is a magnetic nano-particle having 1-50 nm average particle diameter, dispersed in water and comprising a protein or a peptide immobilized on the surface. The magnetic nano-particle dispersed in water has the surface modified with a compound represented by general formula R 1 -(OCH 2 CH 2 ) n -O-L-X (wherein, R 1 represents a 1-24C alkyl group; n represents an integer of ≥1 to ≤20; L represents a single bond or a 1-10C alkylene group; and X represents a carboxylate group, a phosphate group, a sulfonate group or a borate group). The magnetic nano-particle can be used in the fields of life science, medical diagnosis, etc. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供在表面具有生理活性物质的水分散性磁性纳米颗粒,并提供一种具有高通用性质的磁性纳米颗粒的制备方法。 解决方案:磁性纳米颗粒是具有1-50nm平均粒径的磁性纳米颗粒,分散在水中并且包含固定在表面上的蛋白质或肽。 分散在水中的磁性纳米粒子用通式R 1表示的化合物进行表面改性,(OCH 2 SB 2 CH 2) SB> n -OLX(其中,R 1 表示1-24C烷基; n表示≥1〜≤20的整数; L表示单键或1-10C 亚烷基; X表示羧酸酯基,磷酸酯基,磺酸酯基或硼酸酯基)。 磁性纳米颗粒可用于生命科学,医学诊断等领域。版权所有(C)2007,JPO&INPIT