磁性金纳米壳：通过逐步生物功能化实现磁性的逐步变化
Magnetic Gold Nanoshells: Step-wise Changing of Magnetism through Step-wise Biofunctionalization.
作者信息
S S R Kumar Challa, Mohammad Faruq
机构信息
Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806. USA.
出版信息
J Phys Chem Lett. 2010 Oct 21;1(20):3141-3146. doi: 10.1021/jz101202a.
Abstract
We report step-wise changing of magnetic behavior of iron oxide core gold shell nanoparticles from super paramagnetic to permanent magnetism at room temperature, on step-wise bio-functionalization with leutenizing hormone and releasing hormone (LHRH) through cysteamine linker. The observed permanent magnetism at room temperature in LHRH-capped gold nanoshells provides opportunities to extend fundamental investigations of permanent magnetism to other novel nanostructures and biofunctionalized nano gold architectures, simultaneously opening the way to newer applications, especially to those in biomedicine.
摘要
我们报告了在室温下，通过半胱胺连接剂用促黄体激素和释放激素（LHRH）进行逐步生物功能化时，氧化铁核金壳纳米颗粒的磁行为从超顺磁性逐步转变为永磁性。在LHRH包覆的金纳米壳中观察到的室温永磁性为将永磁性的基础研究扩展到其他新型纳米结构和生物功能化纳米金结构提供了机会，同时也为更新的应用开辟了道路，特别是在生物医学领域的应用。
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