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- W4319304572 endingPage "133478" @default.
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- W4319304572 abstract "Evolution of fluorometric sensing methods has brought an enormous opportunity and exhibited novel potentials for enzymatic activities determination. Herein, we have established an accurate and straightforward fluorescent sensing approach for tyrosinase (TYR) activity based on the formation of fluorescent silicon nanoparticles (Si NPs). Influenced by TYR-induced hydroxylation of phenol into catechol, and an easy reaction between catechol and 3(2-aminoethylamino) propyl (dimethoxymethylsilane) (AEAPDMMS) to generate Si NPs, we have designed a label-free fluorescence turn-on probe for TYR activity measurement. After optimization of all reaction parameters, the proposed approach could selectively determine TYR activity in the linearity range of 0.08-9 U mL-1 with the limit of detection (LOD) of 0.03 U mL-1. The practicability of the method in real sample was assessed by measuring TYR activity in human serum sample with successful results. In addition, Si NPs were wonderfully acceptable for Hela and SiHa cells imaging by virtue of their tolerable cytotoxicity and impressive biocompatibility. Therefore, the designed fluorescent biosensor exhibited a potential and widespread implementation in clinical diagnoses assays." @default.
- W4319304572 created "2023-02-07" @default.
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- W4319304572 date "2023-04-01" @default.
- W4319304572 modified "2023-10-12" @default.
- W4319304572 title "A turn-on fluorescence assay of tyrosinase activity based on an enzyme-triggered hydroxylation of phenol for conformation of silicon nanoparticles" @default.
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- W4319304572 doi "https://doi.org/10.1016/j.snb.2023.133478" @default.
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