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- W3161693158 abstract "Silver (Ag) is a widely used heavy metal, and its oxidation state (Ag+) causes serious harm to organisms after bioaccumulation and biomagnification, posing urgent demand for the rapid, efficient, and simply operated Ag+ detection techniques. In this work, a fast, portable, and label-free Ag+ detection sensor based on a Ti3C2Tx MXene field-effect transistor (FET) is reported. The Ti3C2Tx MXene works as the sensing element in the FET sensor, which shows excellent sensing performance, i.e., fast response (few seconds) and good sensitivity and selectivity to Ag+ without any detection label or probe. Utilizing the visual photograph, transmission electron microscopy image, and Ag elemental mapping analysis, the sensing mechanism of the label-free Ti3C2Tx MXene FET sensor is demonstrated to be the in situ reduction of Ag+ and the formation of Ag nanoparticles (AgNPs). Moreover, Ag+ detection in real samples shows that the proposed FET devices have satisfactory sensing capability for Ag+ in tap water and river water. This study puts forward a novel FET strategy for Ag+ detection in aqueous systems, which is of essential and inspiring meaning for motivating the potential applications of MXene-based sensor devices in analytical applications and the realization of on-site environmental monitoring." @default.
- W3161693158 created "2021-05-24" @default.
- W3161693158 creator A5006457719 @default.
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- W3161693158 creator A5072767146 @default.
- W3161693158 date "2021-05-21" @default.
- W3161693158 modified "2023-10-11" @default.
- W3161693158 title "Label-Free, Fast Response, and Simply Operated Silver Ion Detection with a Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> MXene Field-Effect Transistor" @default.
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- W3161693158 doi "https://doi.org/10.1021/acs.analchem.1c01094" @default.
- W3161693158 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34019758" @default.
- W3161693158 hasPublicationYear "2021" @default.
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