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- W4289181610 abstract "Enzyme cascade reactions in organisms have sparked tremendous interest for their coupled catalysis-facilitated efficient biochemical reactions. However, multi-enzyme cascade nanozymes remain largely unused. In the work, flower-like porous ceria-based integrated enzymes (INAzyme), FeMo6@CeO2 (FMC-n), were readily prepared using an efficient thermally induced process. Owing to a larger specific surface area and excellent adsorption, the flower-like matrix (CeO2) can serve as not only an effective sorbent for the conversion of dissolved oxygen in solution but also an excellent support for self-cascade reactions with FeMo6. Based on the electron transfer through Fe and Ce cycles, FMC-n INAzyme exhibits intrinsic oxidase-, peroxidase- and Fenton-like activities. Moreover, by assessing the Vo mobility and F-Vo relative content of FMC-2 and FC-66, we found that the contribution of enhanced accessibility through the specific surface area (SSA) to the activity of the INAzyme is significantly higher than the active sites. Finally, a fluorescence turn-on enhancement sensing platform based on self-cascade FMC-n for the detection of Cys was established, culminating in a LOD of as low as 0.014 μM in the range of 1-100 μM." @default.
- W4289181610 created "2022-08-01" @default.
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- W4289181610 date "2022-01-01" @default.
- W4289181610 modified "2023-09-27" @default.
- W4289181610 title "Oxygen-powered flower-like FeMo<sub>6</sub>@CeO<sub>2</sub> self-cascade nanozymes: a turn-on enhancement fluorescence sensor" @default.
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- W4289181610 doi "https://doi.org/10.1039/d2tb01466a" @default.
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