在螺旋金纳米颗粒超构体中构造各向异性
Deliberate Introduction of Particle Anisotropy in Helical Gold Nanoparticle Superstructures
https://doi.org/10.1002/ppsc.201800504
Helical nanoparticle (NP) superstructures are an important class of chiral NP assemblies. The nature of the constituent NPs (size and shape) within these assemblies dictates their optical properties. However, the construction of helical NP superstructures consisting of various anisotropic NPs remains challenging. Here, a set of cetyltrimethylammonium bromide derivatives is employed to transform constituent spherical gold NPs (≈3 nm) within a chiral single‐helical assembly into gold nanoprisms (edge length ≅ 10 nm). Careful optimization of this strategy may lead to designed chiral NP architectures with tunable optical properties.
螺旋纳米粒子（NP）超结构是一类重要的手性NP组件。 这些组件中组分NP（尺寸和形状）的性质决定了它们的光学性质。 然而，由各种各向异性NP组成的螺旋NP超结构的构造仍然具有挑战性。 这里，使用一组十六烷基三甲基溴化铵衍生物将手性单螺旋组件内的组成球形金纳米颗粒（≈3nm）转变成金纳米棱柱（边长≅10nm）。 仔细优化该策略可能会导致设计具有可调光学特性的手性NP结构。
