Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 141, Issue 18, Pages 7407-7413Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.9b01563
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Funding
- NSFC [NSFC 21521063, NSFC 21327009]
- NIH [GM R35 127130, NSF 1645215]
- National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health (NIH)
- NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING [ZIAEB000073] Funding Source: NIH RePORTER
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MXF, a metal-organic framework (MOF) that contains more than two components, such as heterogeneous inorganic nanoparticle@MOF (NP@MOF) with precisely defined structures, is important in applications such as catalysis, energy, and biochemistry. However, the ambiguous growth mechanism of MXF has hindered the exploration of controllable design of nanoparticle level MXF complexes. Here, we report an Ostwald ripening-mediated grafting of MOF on a single multidentate inorganic colloidal nanocrystal via heterogeneous nucleation. The grafting relies on the carboxylic acid groups anchored on the surface of the colloidal nanocrystal. Ostwald ripening-mediated grafting enabled us to obtain uniform MXF with a wide range of sizes of nanoparticles and a controlled thickness of the MOF layer on the surface of colloidal nanocrystal. A dual FRET-induced singlet oxygen generation with near-infrared light was achieved from an UCNP@ZrMOF hybrid. This generalizable grafting strategy provides insight into the design of MXF nanoparticles for a wide range of applications involving advanced functional materials.
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