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A highly selective and sensitive turn‐on fluorescent probe for the detection of Al 3 + and its bioimaging
Author(s) -
Wang Qingming,
Yang Lei,
Wang Hua,
Song Jialiang,
Ding Hui,
Tang XinHui,
Yao Hongmiao
Publication year - 2017
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3251
Subject(s) - fluorescence , detection limit , chemistry , turn (biochemistry) , selectivity , methylene blue , metal ions in aqueous solution , stoichiometry , methylene , metal , analytical chemistry (journal) , photochemistry , inorganic chemistry , chromatography , organic chemistry , biochemistry , catalysis , physics , quantum mechanics , photocatalysis
A novel fluorescent sensor, 1‐((2‐hydroxynaphthalen‐1‐yl)methylene)urea ( ocn ) has been designed and applied as a highly selective and sensitive fluorescent probe for recognition of Al 3 + in Tris–HCl (pH = 7.20) solution. The probe ocn exhibits an excellent selectivity to Al 3 + over other examined metal ions, anions and amino acids with a prominent fluorescence ‘turn‐on’ at 438 nm. ocn binds to Al 3 + with a 2:1 binding stoichiometry and the detection limit was 0.3 μM. Furthermore, its capability of biological application was evaluated and the results showed that the sensor could be used to detect Al 3 + in living cells.
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