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One-pot synthesis and bioapplication of amine-functionalized magnetite nanoparticles and hollow nanospheres

机译：胺官能化磁铁矿纳米粒子和空心纳米球的一锅合成及生物应用

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摘要

To demonstrate their applications in biological and medical fields such as in immunoassays, magnetic separation of cells or proteins, drug or gene delivery, and magnetic resonance imaging, the template-free syntheses of water-soluble and surface functionalized magnetic nanomaterials have become essential and are challenging. Herein, we developed a facile one-pot template-free method for the preparation of amine-functionalized magnetite nanoparticles and hollow nanospheres by using FeCl(3)(.)6H(2)O as single iron source. These magnetic nanomaterials were characterized by TEM, SEM, XRD, and FTIR technologies. Their magnetic properties were also studied by using a superconducting quantum interference device (SQUID) magnetometer at room temperature. Then the amine-functionalized magnetite nanoparticles were applied to immunoassays and magnetic resonance imaging in live mice.
机译：为了证明其在生物学和医学领域的应用，例如在免疫测定，细胞或蛋白质的磁分离，药物或基因的递送以及磁共振成像中的应用，水溶性和表面官能化磁性纳米材料的无模板合成已成为必不可少的技术，具有挑战性的。在这里，我们开发了一种简便的无一锅无模板方法，通过使用FeCl（3）（。）6H（2）O作为单一铁源来制备胺官能化的磁铁矿纳米颗粒和空心纳米球。这些磁性纳米材料通过TEM，SEM，XRD和FTIR技术进行了表征。还通过在室温下使用超导量子干涉仪（SQUID）磁力计研究了它们的磁性能。然后将胺官能化的磁铁矿纳米颗粒应用于活体小鼠的免疫测定和磁共振成像。

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