金半壳胶体合成中的保护补丁

Protecting patches in colloidal synthesis of Au semishells.

作者信息

Mann Daniel, Voogt Stefanie, van Zandvoort Ryan, Keul Helmut, Möller Martin, Verheijen Marcel, Nascimento-Duplat Daniel, Xu Man, Urbach H Paul, Adam Aurèle J L, Buskens Pascal

机构信息

DWI - Leibniz Institute for Interactive Materials e.V., Forckenbeckstr. 50, 52056 Aachen, Germany and RWTH Aachen University, Institute for Technical and Macromolecular Chemistry, Worringerweg 2, 52074 Aachen, Germany and Zuyd University of Applied Sciences, Nieuw Eyckholt 300, Postbus 550, 6400 AN Heerlen, The Netherlands.

出版信息

Chem Commun (Camb). 2017 Mar 30;53(27):3898-3901. doi: 10.1039/c7cc00689f.

DOI:10.1039/c7cc00689f

PMID:28322386

Abstract

Protecting groups are commonly applied in multi-step molecular syntheses to protect one or multiple functional groups from reacting. After the reaction, they are removed from the molecule. In full analogy to this concept, we report the practical and scalable colloidal synthesis of Au semishells using polyphenylsiloxane protecting patches to prevent part of the surface of polystyrene nanoparticles from being covered with Au. After Au deposition, the patches are removed yielding Au semishells. We anticipate that this strategy can be extended to the synthesis of other types of non-centrosymmetric nanoparticles.

摘要

保护基团通常用于多步分子合成中，以保护一个或多个官能团不发生反应。反应完成后，它们从分子中被去除。与此概念完全类似，我们报道了使用聚苯基硅氧烷保护片来防止聚苯乙烯纳米颗粒表面的一部分被金覆盖，从而实现金半壳的实用且可扩展的胶体合成。金沉积后，去除这些保护片，得到金半壳。我们预计这种策略可以扩展到其他类型的非中心对称纳米颗粒的合成。