Nanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan.
Langmuir. 2012 Mar 20;28(11):4903-7. doi: 10.1021/la2038334. Epub 2012 Mar 5.
We report the synthesis of Au-based submicrometer-sized spherical particles with uniform morphology/size and integrated porosity-magnetic property in a single particles. The particles are synthesized by a two-step process: (a) selective pulsed laser heating of colloidal nanoparticles to form particles with Au-rich core and Fe-rich shell and (b) acid treatment which leads to formation of porous architecture on particle surface. The simple, fast, inexpensive technique that is proposed demonstrates very promising perspectives for synthesis of composite particles.
我们报告了一种在单个颗粒中合成具有均匀形态/尺寸和集成多孔磁性的基于金的亚微米级球形颗粒的方法。这些颗粒是通过两步法合成的：(a) 胶体纳米粒子的选择性脉冲激光加热，形成富金核和富铁壳的颗粒；(b) 酸处理，导致颗粒表面形成多孔结构。所提出的这种简单、快速、廉价的技术为合成复合颗粒展示了非常有前景的前景。
