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磁性奈米粒子

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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（英语：Magnetoelastic filaments）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（英语：nanomaterial-based catalyst）、[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（英语：magnetic particle imaging）、[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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  19. ^ Chaudhary, V.; Chen, X.; Ramanujan, R.V. Iron and manganese based magnetocaloric materials for near room temperature thermal management. Progress in Materials Science. 2019, 100: 64–98. doi:10.1016/j.pmatsci.2018.09.005. 
  20. ^ Philip, V. Mahendran; Felicia, Leona J. A Simple, In-Expensive and Ultrasensitive Magnetic Nanofluid Based Sensor for Detection of Cations, Ethanol and Ammonia. Journal of Nanofluids. 2013, 2 (2): 112–119. doi:10.1166/jon.2013.1050. 
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