期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 8, 页码 2110-2114出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201711600
关键词
fluorescence resonance energy transfer; metal-organic frameworks; multi-shelled hollow structures; zeolitic imidazolate frameworks
资金
- Boston College
- NSF [CHE 1566445]
- China Scholarship Council
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1566445] Funding Source: National Science Foundation
A bio-inspired design of using metal-organic framework (MOF) microcrystals with well-defined multi-shelled hollow structures was used as a matrix to host multiple guests including molecules and nanoparticles at separated locations to form a hierarchical material, mimicking biological structures. The interactions such as energy transfer (ET) between different guests are regulated by precisely fixing them in the MOF shells or encapsulating them in the cavities between the MOF shells. The proof-of-concept design is demonstrated by hosting chromophore molecules including rhodamine 6G (R6G) and 7-amino-4-(trifluoromethyl)coumarin (C-151), as well as metal nanoparticles (Pd NPs) into the multi-shelled hollow zeolitic imidazolate framework-8 (ZIF-8). We could selectively establish or diminish the guest-to-framework and guest-to-guest ET. This work provides a platform to construct complex multifunctional materials, especially those need precise separation control of multi-components.
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