Size‐Selective Exclusion Effects of Liquid Crystalline Tactoids on Nanoparticles: A Separation Method,Angewandte Chemie International Edition

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Size‐Selective Exclusion Effects of Liquid Crystalline Tactoids on Nanoparticles: A Separation Method
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-02-23 , DOI: 10.1002/anie.201712158
Pei-Xi Wang ₁ , Wadood Y. Hamad ₂ , Mark J. MacLachlan ₁

Affiliation

Liquid crystalline tactoids are anisotropic microdroplets existing in isotropic phases. We studied the structure and evolution of tactoids in the presence of doping nanoparticles by electron microscopy at the resolution of individual mesogens and observed size‐selective exclusion effects of liquid crystalline tactoids on foreign nanoparticles. We applied this principle to the separation of polymer nanospheres, gold nanoparticles, and magnetic nanoparticles by size. These results indicate a new way to size‐selectively separate nanoparticles using lyotropic liquid crystals, in which nanoparticles smaller than a threshold size will be selectively transferred from the disordered phase into the ordered phase by tactoids during the phase separation process.

中文翻译：

液晶触针对纳米粒子的尺寸选择性排斥作用：一种分离方法

液晶触针是存在于各向同性相中的各向异性微滴。我们通过电子显微镜在单个液晶元的分辨率下研究了在存在掺杂纳米粒子的情况下类触觉分子的结构和演化，并观察了液晶类触觉分子对外来纳米粒子的尺寸选择性排斥作用。我们将此原理应用于按尺寸分离聚合物纳米球，金纳米颗粒和磁性纳米颗粒。这些结果表明了使用溶致液晶选择性地分离纳米颗粒的新方法，其中小于阈值尺寸的纳米颗粒将在相分离过程中通过触手选择性地从无序相转移到有序相中。

更新日期：2018-02-23

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