纳米技术
材料科学
自组装
纳米-
制作
分子
纳米颗粒
金属
化学
复合材料
有机化学
冶金
医学
病理
替代医学
作者
Gyeongwon Yun,Quinn A. Besford,Stuart T. Johnston,Joseph J. Richardson,Shuaijun Pan,Matthew D. Biviano,Frank Caruso
标识
DOI:10.1021/acs.chemmater.8b02616
摘要
The self-assembly of molecular building blocks into well-defined macroscopic materials is desirable for developing emergent functional materials. However, the self-assembly of molecules into macroscopic materials remains challenging, in part because of limitations in controlling the growth and robustness of the materials. Herein, we report the molecular self-assembly of nano- to macroscopic free-standing materials through the coordination of metals with natural phenolic molecules. Our method involves a simple and scalable solution-based template dipping process in precomplexed metal–phenolic solutions, enabling the fabrication of free-standing macroscopic materials of customized architectures (2D and 3D geometries), thickness (about 10 nm to 5 μm), and chemical composition (different metals and phenolic ligands). Our macroscopic free-standing materials can be physically folded and unfolded like origami, yet are selectively degradable. Furthermore, metal nanoparticles can be grown in the macroscopic free-standing films, indicating their potential for future applications in biotechnology and catalysis.
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