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- W4379194123 abstract "A chemosensor with two binding pockets facilitates binding of one metal ion in either of the pockets providing a better chance for the interaction and hence recognition of the cation. We report here a chemosensor, namely 2,2'-(1E)-(5,5'-sulfonylbis(2-hydroxy-5,1-phenylene))bis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)dinaphthalen-1-ol (H4L-naph), for selective sensing of Al3+ in DMF- HEPES buffer (1:4, v/v, pH 7.4). It shows almost 100-fold fluorescence enhancement at 532 nm (λex =482 nm) in the presence of Al3+. Its quantum yield and excited state lifetime enhances significantly with the cations. H4L-naph forms a 1:2 complex with Al3+ with an association constant value of 2.18 × 104 M–2. Fluorescence enhancement may be attributed to CHEFF mechanism and restriction of >C=N isomerization. Effect of the presence of naphthyl rings instead phenyl ring of a previously reported probe has resulted shifting of excitation/emission peak towards longer wavelength. The probe has been applied to image Al3+ in L6 cells with no significant cytotoxicity." @default.
- W4379194123 created "2023-06-04" @default.
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- W4379194123 date "2023-11-01" @default.
- W4379194123 modified "2023-09-27" @default.
- W4379194123 title "Modulation of aluminum sensing properties of a sulphone group containing chemosensor and its biological applications" @default.
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- W4379194123 doi "https://doi.org/10.1016/j.saa.2023.122981" @default.
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