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- W3134217154 abstract "Owing to the huge threat to human health and environment from thiosulfate anion (S2O32−) widely used in various fields, the development of an effective detection method for S2O32− is urgently desired. Herein, we developed an iodine (I2) mediated nitrogen-doped graphene quantum dots (I2-mediated N-GQDs) as a fluorescence “off-on” probe for S2O32− by iodimetry reaction oriented strategy. Firstly, I2 interacted with N-GQDs to form non-fluorescent N-GQDs/I2 complex due to the inner filter effect (IFE). In the presence of S2O32−, the iodimetry reaction between I2 and S2O32− disintegrated N-GQDs/I2 complex and re-switched on the quenched photoluminscence of N-GQDs. The I2-mediated N-GQDs nanoprobe with a limit of detection down to 93 pM has been successfully used to sense S2O32- in biological fluids and living cells. Moreover, the I2-mediated N-GQDs/S2O32− nanoplatform could further detect oxidative compounds such as hydrogen dioxide, dichromate, permanganate, iron ion (III), copper ion (II), and cerium ion (IV)." @default.
- W3134217154 created "2021-03-15" @default.
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- W3134217154 date "2021-05-01" @default.
- W3134217154 modified "2023-10-16" @default.
- W3134217154 title "Nitrogen-doped graphene quantum dots based fluorescent probe for highly sensitive detection of thiosulfate anion and oxidative compounds" @default.
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- W3134217154 doi "https://doi.org/10.1016/j.jphotochem.2021.113234" @default.
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