Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology , Wyb. Wyspianskiego 27, 50-370 Wroclaw, Poland.
Langmuir. 2017 Sep 12;33(36):8993-8999. doi: 10.1021/acs.langmuir.7b00873. Epub 2017 Aug 24.
We report on two-photon excitation properties of small silver-doped gold nanoclusters (AuAgNCs) and on their three-dimensional arrangement in a hybrid system composed of DNA liquid crystals (LCs) and AuAgNCs. UV-vis and fluorescence spectroscopy, transmission electron microscopy (TEM), and multiphoton excitation spectroscopy were used to characterize the nanoparticles. We show that AuAgNCs exhibit two-photon excited luminescence (2PL) emission and second-harmonic generation (SHG) and that these properties remain the same in liquid crystalline matrix. The results are described in detail and discussed in the context of possible imaging application of AuAgNC and specific AuAgNCs organization induced by liquid crystalline ordering of DNA molecules.
我们报告了小银掺杂金纳米团簇（AuAgNCs）的双光子激发性质，以及它们在由 DNA 液晶（LCs）和 AuAgNCs 组成的混合系统中的三维排列。我们使用紫外可见和荧光光谱、透射电子显微镜（TEM）和多光子激发光谱来表征纳米颗粒。我们表明，AuAgNCs 表现出双光子激发发光（2PL）发射和二次谐波产生（SHG），并且这些性质在液晶基质中保持不变。结果被详细描述，并在可能的 AuAgNC 成像应用和 DNA 分子液晶有序化诱导的特定 AuAgNC 组织的背景下进行了讨论。
