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- W3207788725 abstract "A highly sensitive AIE fluorescent probe (DBAQ) containing quinoxaline moiety was designed based on the natural diterpene dehydroabietic acid. This probe was synthesized and manifested via the analysis of FT-IR, 1H NMR, 13C NMR, and ESI-MS spectra. The probe DBAQ was utilized to selectively recognize Hg2+ against other competitive metal ions with the detection limit of 10.3 nM in MeCN/H2O solution (v/v = 1/9, pH = 7.5). In particular, DBAQ (λex/em = 425/600 nm) possessed a large Stokes shift (175 nm), short response time (10 s), and a wide pH range for Hg2+ detection (5 ∼ 10). Job’s plot method was used to determine the stoichiometry ratio of DBAQ-Hg2+ complexes as 1:2, which was confirmed by FT-IR. The binding mechanisms of DBAQ with Hg2+ were confirmed by 1H NMR titration. Meanwhile, DBAQ exhibited satisfied detection performance in seafood and environmental water samples. Furthermore, DBAQ revealed the considerably low cytotoxic effects to MCF-7 cells (IC50 > 100 μM), and it could be utilized as an outstanding imaging agent for the determination of Hg2+ both in living cells and zebrafish." @default.
- W3207788725 created "2021-10-25" @default.
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- W3207788725 date "2022-01-01" @default.
- W3207788725 modified "2023-10-11" @default.
- W3207788725 title "A novel dehydroabietic acid-based AIE-active fluorescent probe for rapid detection of Hg2+ and its environmental and biological applications" @default.
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- W3207788725 doi "https://doi.org/10.1016/j.jphotochem.2021.113597" @default.
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