Journal
CHEMICAL COMMUNICATIONS
Volume 56, Issue 40, Pages 5389-5392Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc01006e
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Funding
- National Natural Science Foundation of China [21621001, 21771077, 21771084]
- National Key Research and Development Program of China [2016YFB0701100]
- 111 projects [B17020]
- Program for JLU Science and Technology Innovative Research Team
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A stable nanoscaled single-excitation ratiometric luminescent pH sensor (MPDB-PCN) over a broad pH range from 2.5 to 8.6 is fabricated through post-synthetic modification of PCN-224 with naphthalimide-derived molecules. Due to the rapid, sensitive and linear response to pH, MPDB-PCN is capable of detecting 3-nitropropionic acid (3-NPA), an acid neurotoxin in food safety, with a low detection limit of 15 mu M in sugarcane juice.
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