The George Washington University, Washington, District of Columbia 20052, USA.
Nano Lett. 2013 Jun 12;13(6):2611-4. doi: 10.1021/nl400720n. Epub 2013 May 6.
Gold-coated gadolinium nanocrystals, with an average diameter of 3.20 ± 0.35 nm, have been synthesized at ambient temperature by alkalide reduction. Whereas uncoated gadolinium nanoparticles react violently with air and water, the gold-coated gadolinium nanocrystals reported here show no reaction even upon long-term exposure. This is the first example of air- and water-stable lanthanide metal nanocrystals, which may allow for the development of magnetic and biomedical applications of gadolinium and other lanthanide metal and alloy nanocrystals.
金包覆的钆纳米晶，平均粒径为 3.20 ± 0.35nm，在室温下通过堿金属还原法合成。未包覆的钆纳米粒子与空气和水剧烈反应，而这里报道的金包覆的钆纳米晶即使长时间暴露也没有反应。这是首例空气和水稳定的镧系金属纳米晶，这可能为开发钆和其他镧系金属及合金纳米晶的磁性和生物医学应用提供可能。
