Calixarene-encapsulated nanoparticles: self-assembly into functional nanomaterials.
Calixarene-encapsulated nanoparticles: self-assembly into functional nanomaterials.
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DOI：
10.1039/b515806k
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发表时间：
2006-03
影响因子：
4.9
通讯作者：
A. Wei
中科院分区：
文献类型：
--
作者：
A. Wei
杯芳烃是用于增强金属纳米颗粒的分散和自组装成明确定义的结构的优异表面活性剂，特别是具有10-100 nm尺寸范围内的单位长度尺度的那些。这些集合体中的粒子是强耦合的，从而产生独特的集体光学或磁性。本专题文章中描述的自组装纳米结构包括具有尺寸依赖性等离子体响应的胶体Au纳米颗粒的2D阵列，以及具有手性磁性状态的亚100 nm Co纳米颗粒环。这些纳米颗粒组装体可以进一步开发，分别用于基于表面增强拉曼散射（Sers）的化学传感应用和作为非易失性存储器的二元元件。
Calixarenes are excellent surfactants for enhancing the dispersion and self-assembly of metal nanoparticles into well-defined structures, particularly those with unit length scales in the 10-100 nm size range. Particles within these ensembles are strongly coupled, giving rise to unique collective optical or magnetic properties. The self-assembled nanostructures described in this feature article include 2D arrays of colloidal Au nanoparticles with size-dependent plasmonic responses, and sub-100 nm Co nanoparticle rings with chiral magnetic states. These nanoparticle assemblies may be further developed for applications in chemical sensing based on surface-enhanced Raman scattering (SERS) and as binary elements for nonvolatile memory, respectively.