Journal
INORGANIC CHEMISTRY FRONTIERS
Volume 9, Issue 14, Pages 3627-3635Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2qi00542e
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Funding
- National Natural Science Foundation of China [21971194]
- Major Scientific and Technological Innovation Projects of Shandong Province [2019JZZY010503]
- Science & Technology Commission of Shanghai Municipality [14DZ2261100]
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This study successfully prepared HOF-DBA with good luminescence properties and used it as a sensor to quantitatively identify the concentrations of nitrofurazone and gamma-aminobutyric acid (GABA). A back-propagation neural network (BPNN) model based on HOF-DBA and GABA was also constructed for intelligent fluorescence detection of GABA.
Intelligent fluorescence detection for disease diagnosis has become a research hotspot. In the era of big data, machine learning (ML) for analyzing data and mining will be widely used in drug and biomarker detection. A novel hydrogen-bonded organic framework (HOF) HOF-DBA with good luminescence properties was successfully prepared from aromatic tetracarboxylic acid (4,4 '-(anthracene-9,10-diyl)dibenzoic acid) by a solvothermal method. HOF-DBA acted as a fluorescent sensor to quantitatively identify the concentration of nitrofurazone (NFZ) by photo-induced electron transfer (PET) and competitive absorption. The detection limit was lower than 0.002 mu g mL(-1), with high sensitivity and good reproducibility. HOF-DBA also exhibited highly efficient turn-up fluorescence sensing of gamma-aminobutyric acid (GABA osteoporosis biomarker) in aqueous solution and serum. In addition, a back-propagation neural network (BPNN) model based on HOF-DBA and GABA was constructed for the first time. The actual test data showed that BPNN could accurately distinguish GABA concentrations by the maximum depth likelihood method. This work provides new insights into HOF-based sensors and combines fluorescence sensing with deep ML to achieve intelligent fluorescence detection of GABA.
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