金属驱动的分级自组装一维纳米螺旋。

Metal-driven hierarchical self-assembled one-dimensional nanohelices.

机构信息

Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Analytical Instrumentation Center, Peking University, Beijing 100871, China.

出版信息

Nano Lett. 2009 Dec;9(12):4500-4. doi: 10.1021/nl9028335.

DOI:10.1021/nl9028335

PMID:19908861

Abstract

Sophisticated helical structure has been an attractive subject due to its significance in understanding of biological self-assembly and appealing application in nanoscience. In this work, a facile route toward one-dimensional helical nanostructure is presented based on metal-cholate supramolecular self-assembly. Well-defined right-handed helical nanoribbons in calcium-cholate systems are systematically investigated and a series of metal ions are exploited to drive metal-cholate supramolecular helix. It is anticipated that the incorporation of metal ions may endow versatile functionalities and merits to the self-assembled nanohelices. Particularly helical inorganic nanomaterials (i.e., SiO(2) and ZnS) have been prepared based on metal-cholate supramolecular nanohelix via two distinct templating strategies.

摘要

由于其在生物自组装理解中的重要性以及在纳米科学中的诱人应用，复杂的螺旋结构一直是一个吸引人的课题。在这项工作中，提出了一种基于金属-胆酸盐超分子自组装的一维螺旋纳米结构的简便途径。系统地研究了钙-胆酸盐体系中具有良好定义的右手螺旋纳米带，并利用一系列金属离子来驱动金属-胆酸盐超分子螺旋。预计金属离子的掺入可能赋予自组装纳米螺旋各种多功能性和优点。特别地，通过两种不同的模板策略，基于金属-胆酸盐超分子纳米螺旋制备了螺旋无机纳米材料（即 SiO(2) 和 ZnS）。