公开(公告)号：KR100759715B1

公开(公告)日：2007-10-04

申请号：KR1020060093348

申请日：2006-09-26

Applicant: 고려대학교 산학협력단

Inventor： 김영근 ,  우준화 ,  류홍링 ,  고승필 ,  민지현 ,  조지웅 ,  이주헌 ,  안부현 ,  한승엽

IPC: B82B3/00 ,  B82Y40/00

CPC classification number: B22F1/025 ,  B22F2301/255 ,  B22F2301/35 ,  B22F2304/054 ,  B82Y30/00 ,  B82Y40/00

Abstract: A method of manufacturing uniform bifunctional nanoparticles having excellent magnetic and optical properties is provided, which employs the polyol method for producing core, and utilizes a reducing reaction for the formation of the shell structure on the core. A method of manufacturing bifunctional nanoparticles comprises steps of: mixing a core matter precursor such as Fe(acac)3(99.9%) and a reductant for the core matter followed by a solvent for the reductant to form the first mixture solution; heating the first mixture solution up to the first temperature and then cooling the solution to form a core; mixing a shell matter precursor such as Au(OOCCH3)3 and a reductant for the shell matter precursor followed by a solvent for the reductant to form the second mixture solution; heating the solution up to the second temperature and then cooling it; and coating the core with the produced shell matter during the reductui reaction. A surfactant is added in the mixture solutions for improving the surface properties of the core and the shell. A tri-block copolymer as surfactants is preferable. An ethanol is added in order to precipitate out the nanoparticles, and then the precipitated nanoparticles are collected by centrifugation.

Abstract translation: 提供了一种制备具有优异的磁性和光学特性的均匀双功能纳米颗粒的方法，其采用多元醇方法制备芯，并利用还原反应在芯上形成壳结构。 制造双功能纳米颗粒的方法包括以下步骤：将核心物质前体如Fe（acac）3（99.9％）和还原剂与核心物质混合，然后用还原剂溶剂形成第一混合物溶液; 将第一混合溶液加热至第一温度，然后冷却溶液以形成芯; 混合诸如Au（OOCCH 3）3的壳物质前体和壳物质前体的还原剂，然后用还原剂的溶剂形成第二混合物溶液; 将溶液加热至第二温度，然后冷却; 并在还原反应期间用生产的壳物涂覆芯。 在混合溶液中加入表面活性剂以改善核和壳的表面性质。 优选三嵌段共聚物作为表面活性剂。 加入乙醇以沉淀出纳米颗粒，然后通过离心收集沉淀的纳米颗粒。