磁性奈米粒子(英語:magnetic nanoparticle)是一種可以使用磁場操控的奈米粒子。這種粒子一般是由兩個部分組成,一個是磁性材料(常為鐵、鎳與鈷),另一個是有功能的化學成分。奈米粒子的直徑小於1微米(通常為1-100奈米),而較大的微珠(microbead)的直徑為0.5-500微米。由若干個別磁性奈米粒子構成的團簇被稱作磁性奈米珠(magnetic nanobead),直徑為50-200奈米。[1][2]磁性奈米粒子的團簇是近一步組合成磁性奈米鏈的基礎。[3]磁性奈米粒子最近已成為很多研究的焦點,這是因為它有一些具吸引力的性質,使它可能可以用於催化,例如基於奈米材料的催化、[4]生物醫學[5]與組織特異靶向(tissue specific targeting)、[6]磁性可調膠體光子晶體、[7]微流控、[8]核磁共振成像、[9]磁性粒子成像、[10]儲存裝置、[11][12]環境整治、[13]奈流體、[14][15]濾光器、[16]缺陷感測器(defect sensor)、[17]磁冷卻[18][19]與陽離子感測器。[20]
参考资料
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