Magnetic and nonmagnetic nanoparticles from a group of uniform materials based on organic salts.
Magnetic and nonmagnetic nanoparticles from a group of uniform materials based on organic salts.
复制标题
来自一组基于有机盐的均匀材料的磁性和非磁性纳米颗粒。
DOI：
10.1021/nn900781g
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发表时间：
2009
期刊：
影响因子：
17.1
通讯作者：
Warner,IsiahM
中科院分区：
文献类型：
--
作者：
Tesfai,Aaron;El-Zahab,Bilal;Kelley,AlgernonT;Li,Min;Garno,JayneC;Baker,GaryA;Warner,IsiahM
由一组基于有机盐的均匀材料 (GUMBOS) 开发的磁性纳米粒子的尺寸和均匀性通过原位交换、油包水 (w/o) 微乳液制剂进行控制。大多数这些 nanoGUMBOS 实际上是离子液体（即熔点低于 100 °C），而其他纳米液体的熔点高于传统的 100 °C 界限。采用 w/o 方法后，试剂浓度的简单变化使我们能够在显着的尺寸范围内平滑且可预测地改变纳米颗粒尺寸，并具有出色的均匀性。例如，通过控制试剂浓度，可以实现 14 至 198 nm 范围内的 GUMBOS 颗粒的平均尺寸。这种新型纳米颗粒的可控形成对于众多潜在应用非常重要，并将在药物输送、磁共振成像和蛋白质分离等领域开辟有趣的新机会。
The size and uniformity of magnetic nanoparticles developed from agroup ofuniformmaterialsbased onorganicsalts (GUMBOS) were controlled using anin situion exchange, water-in-oil (w/o) microemulsion preparation. Most of these nanoGUMBOS are in fact ionic liquids (i.e., melting points less than 100 °C), while others have melting points above the conventional 100 °C demarcation. Simple variations in the reagent concentrations following a w/o approach allowed us to smoothly and predictably vary nanoparticle dimensions across a significant size regime with excellent uniformity. Average sizes of GUMBOS particles ranging from 14 to 198 nm were achieved by manipulation of the reagent concentration, for example. Controllable formation of this new breed of nanoparticles is important for numerous potential applications and will open up interesting new opportunities in drug delivery, magnetic resonance imaging, and protein separations, among other areas.