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公开(公告)号:US6150181A
公开(公告)日:2000-11-21
申请号:US981239
申请日:1998-06-11
申请人: Avraham Halbreich , Domagoj Sabolovic , Claude Sestier , Danielle Geldwerth , Jean-Noel Pons , Jacky Roger
发明人: Avraham Halbreich , Domagoj Sabolovic , Claude Sestier , Danielle Geldwerth , Jean-Noel Pons , Jacky Roger
IPC分类号: B03C1/01 , G01N33/543 , G01N33/68 , G01N33/86 , H01F1/44 , G01N33/553 , G01N15/06
CPC分类号: B03C1/01 , G01N33/54326 , G01N33/6893 , G01N33/86 , H01F1/44 , G01N2333/4718 , Y10S436/823 , Y10S977/773 , Y10S977/838 , Y10S977/92 , Y10S977/924 , Y10S977/93 , Y10T428/2982 , Y10T428/2991
摘要: The invention relates to a process for producing ferrofluid-forming magnetic particles substituted by DMSA (FFSH) that can be covalently coupled, directly or through a difunctional reactant, to an effector, which process comprises combining DMSA with ferrofluid-forming magnetic particles to form FFSS particles having disulfide bonds, and reducing the disulfide bonds of the FFSS at basic pH to form FFSH. The invention includes a composition comprising such FFSH magnetic particles. The invention also relates to a method in which FFSH magnetic particles are incubated with an effector comprising at least one functional group which forms an S--S, C--S, C--C, or C--N bond with DMSA, so that a covalent effector-FFSH complex is formed. The invention further includes a method for separating and/or distinguishing between molecules or cells having a ligand that forms an affinity complex with an effector-FFSH particle of the invention, and those molecules or cells that do not have such a ligand.
摘要翻译: PCT No.PCT / FR96 / 00964 Sec。 371日期:1998年6月11日 102(e)1998年6月11日PCT PCT 1996年6月20日PCT公布。 公开号WO97 / 01760 日本1997年1月16日本发明涉及一种生产由DMSA(FFSH)取代的形成磁流体的磁性颗粒的方法,该方法可直接或通过双功能反应物共价偶联至效应物,该方法包括将DMSA与铁磁流体形成 磁性颗粒形成具有二硫键的FFSS颗粒,并在碱性pH下还原FFSS的二硫键形成FFSH。 本发明包括包含这种FFSH磁性颗粒的组合物。 本发明还涉及一种方法,其中FFSH磁性颗粒与包含至少一个与DMSA形成S-S,C-S,C-C或C-N键的官能团的效应物一起温育,从而形成共价效应子FFSH复合物。 本发明还包括用于分离和/或区分分子或细胞的方法,所述分子或细胞具有与本发明的效应子FFSH颗粒形成亲和复合物的配体,以及不具有这种配体的那些分子或细胞。