Engineering Multifunctional Capsules through the Assembly of Metal-Phenolic Networks
Engineering Multifunctional Capsules through the Assembly of Metal-Phenolic Networks
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DOI：
10.1002/anie.201311136
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发表时间：
2014-05-01
影响因子：
16.6
通讯作者：
Caruso, Frank
中科院分区：
文献类型：
--
作者：
Guo, Junling;Ping, Yuan;Caruso, Frank
金属-有机配位材料由于无机和有机结构单元的结合优点而受到广泛关注。这些材料可以组装成具有一系列特性的中空胶囊，这些特性包括选择性渗透性、增强的机械/热稳定性和刺激响应性。以前的研究主要集中在组装方面的金属配位胶囊，然而，工程的金属特定功能的胶囊设计尚未进行探讨。本文报道了一个由酚类配体（单宁酸）和一系列金属制备的功能性金属-酚网络（MPN）胶囊库。MPN胶囊的性质由配位金属决定，允许控制膜厚度、分解特性和荧光行为。此外，MPN胶囊的功能特性被定制用于药物递送、正电子发射断层扫描（PET）、磁共振成像（MRI）和催化。将多种金属结合到MPN胶囊中的能力表明可以产生各种各样的功能材料。
Metal-organic coordination materials are of widespread interest because of the coupled benefits of inorganic and organic building blocks. These materials can be assembled into hollow capsules with a range of properties, which include selective permeability, enhanced mechanical/thermal stability, and stimuli-responsiveness. Previous studies have primarily focused on the assembly aspects of metal-coordination capsules; however, the engineering of metal-specific functionality for capsule design has not been explored. A library of functional metal-phenolic network (MPN) capsules prepared from a phenolic ligand (tannic acid) and a range of metals is reported. The properties of the MPN capsules are determined by the coordinated metals, allowing for control over film thickness, disassembly characteristics, and fluorescence behavior. Furthermore, the functional properties of the MPN capsules were tailored for drug delivery, positron emission tomography (PET), magnetic resonance imaging (MRI), and catalysis. The ability to incorporate multiple metals into MPN capsules demonstrates that a diverse range of functional materials can be generated.