Key Laboratory of Biomedical Polymers of Ministry of Education, College of Chemistry and Molecular Sciences, School of Microelectronics, Wuhan University, Wuhan, 430072, China.
Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China.
Angew Chem Int Ed Engl. 2021 Aug 2;60(32):17564-17569. doi: 10.1002/anie.202103486. Epub 2021 Jun 30.
Facet-selective nanostructures in living systems usually exhibit outstanding optical and enzymatic properties, playing important roles in photonics, matter exchange, and biocatalysis. Bioinspired construction of facet-selective nanostructures offers great opportunities for sophisticated nanomaterials, but remains a formidable task. We have developed a macromolecule-mediated strategy for the assembly of upconversion nanoparticles (UCNPs)/two-dimensional metal-organic frameworks (2DMOFs) heterostructures with facet selectivity. Both experimental and theoretical results demonstrate that polyvinylpyrrolidone (PVP) can be utilized as an interface-selective mediator to further promote the facet-selective assembly of MOFs onto the surface of UCNPs. The UCNPs/2DMOFs nanostructures with facet selectivity display specific optical properties and show great advantages in anti-counterfeiting. Our demonstration of UCNPs/2DMOFs provides a vivid example for the controlled fabrication of facet-selective nanostructures and can promote the development of advanced functional materials for applications in biosensing, energy conversion, and information assurance.
在生命体系中，面选择性纳米结构通常表现出优异的光学和酶学性质，在光子学、物质交换和生物催化中发挥着重要作用。受生物启发构建面选择性纳米结构为复杂纳米材料提供了巨大的机会，但仍然是一项艰巨的任务。我们开发了一种大分子介导的策略，用于组装具有面选择性的上转换纳米粒子（UCNPs）/二维金属有机骨架（2DMOFs）异质结构。实验和理论结果都表明，聚乙烯吡咯烷酮（PVP）可用作界面选择性介导物，以进一步促进 MOFs 在 UCNPs 表面的面选择性组装。具有面选择性的 UCNPs/2DMOFs 纳米结构具有特定的光学性质，在防伪方面具有很大的优势。我们对 UCNPs/2DMOFs 的演示为面选择性纳米结构的可控构建提供了一个生动的范例，并可以促进用于生物传感、能量转换和信息保障的先进功能材料的发展。
