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Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets

Smartphone-assisted fluorescence and colorimetric methods for the on-site detection of Hg(2+) and Cl(−) were established based on the oxidase-like activity of the Au–Hg alloy on the surface of Au/Cu/Ti(3)C(2) NSs. The Au nanoparticles (NPs) were constructed via in-situ growth on the surface of Cu/Ti...

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Autores principales: Chen, Keyan, Fu, Shiqi, Jin, Chenyu, Guo, Fan, He, Yu, Ren, Qi, Wang, Xuesheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10386442/
https://www.ncbi.nlm.nih.gov/pubmed/37513228
http://dx.doi.org/10.3390/molecules28145355
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author Chen, Keyan
Fu, Shiqi
Jin, Chenyu
Guo, Fan
He, Yu
Ren, Qi
Wang, Xuesheng
author_facet Chen, Keyan
Fu, Shiqi
Jin, Chenyu
Guo, Fan
He, Yu
Ren, Qi
Wang, Xuesheng
author_sort Chen, Keyan
collection PubMed
description Smartphone-assisted fluorescence and colorimetric methods for the on-site detection of Hg(2+) and Cl(−) were established based on the oxidase-like activity of the Au–Hg alloy on the surface of Au/Cu/Ti(3)C(2) NSs. The Au nanoparticles (NPs) were constructed via in-situ growth on the surface of Cu/Ti(3)C(2) NSs and characterized by different characterization techniques. After the addition of Hg(2+), the formation of Hg–Au alloys could promote the oxidization of o-phenylenediamine (OPD) to generate a new fluorescence emission peak of 2,3-diaminopenazine (ADP) at 570 nm. Therefore, a turn-on fluorescence method for the detection of Hg(2+) was established. As the addition of Cl(−) can influence the fluorescence of ADP, the fluorescence intensity was constantly quenched to achieve the continuous quantitative detection of Cl(−). Therefore, a turn-off fluorescence method for the detection of Cl(−) was established. This method had good linear ranges for the detection of Hg(2+) and Cl(−) in 8.0–200.0 nM and 5.0–350.0 µM, with a detection limit of 0.8 nM and 27 nM, respectively. Depending on the color change with the detection of Hg(2+) and Cl(−), a convenient on-site colorimetric method for an analysis of Hg(2+) and Cl(−) was achieved by using digital images combined with smartphones (color recognizers). The digital picture sensor could analyze RGB values in concentrations of Hg(2+) or Cl(−) via a smartphone app. In summary, the proposed Au/Cu/Ti(3)C(2) NSs-based method provided a novel and more comprehensive application for environmental monitoring.
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spelling pubmed-103864422023-07-30 Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets Chen, Keyan Fu, Shiqi Jin, Chenyu Guo, Fan He, Yu Ren, Qi Wang, Xuesheng Molecules Article Smartphone-assisted fluorescence and colorimetric methods for the on-site detection of Hg(2+) and Cl(−) were established based on the oxidase-like activity of the Au–Hg alloy on the surface of Au/Cu/Ti(3)C(2) NSs. The Au nanoparticles (NPs) were constructed via in-situ growth on the surface of Cu/Ti(3)C(2) NSs and characterized by different characterization techniques. After the addition of Hg(2+), the formation of Hg–Au alloys could promote the oxidization of o-phenylenediamine (OPD) to generate a new fluorescence emission peak of 2,3-diaminopenazine (ADP) at 570 nm. Therefore, a turn-on fluorescence method for the detection of Hg(2+) was established. As the addition of Cl(−) can influence the fluorescence of ADP, the fluorescence intensity was constantly quenched to achieve the continuous quantitative detection of Cl(−). Therefore, a turn-off fluorescence method for the detection of Cl(−) was established. This method had good linear ranges for the detection of Hg(2+) and Cl(−) in 8.0–200.0 nM and 5.0–350.0 µM, with a detection limit of 0.8 nM and 27 nM, respectively. Depending on the color change with the detection of Hg(2+) and Cl(−), a convenient on-site colorimetric method for an analysis of Hg(2+) and Cl(−) was achieved by using digital images combined with smartphones (color recognizers). The digital picture sensor could analyze RGB values in concentrations of Hg(2+) or Cl(−) via a smartphone app. In summary, the proposed Au/Cu/Ti(3)C(2) NSs-based method provided a novel and more comprehensive application for environmental monitoring. MDPI 2023-07-12 /pmc/articles/PMC10386442/ /pubmed/37513228 http://dx.doi.org/10.3390/molecules28145355 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Chen, Keyan
Fu, Shiqi
Jin, Chenyu
Guo, Fan
He, Yu
Ren, Qi
Wang, Xuesheng
Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title_full Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title_fullStr Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title_full_unstemmed Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title_short Smartphone-Enabled Fluorescence and Colorimetric Platform for the On-Site Detection of Hg(2+) and Cl(−) Based on the Au/Cu/Ti(3)C(2) Nanosheets
title_sort smartphone-enabled fluorescence and colorimetric platform for the on-site detection of hg(2+) and cl(−) based on the au/cu/ti(3)c(2) nanosheets
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10386442/
https://www.ncbi.nlm.nih.gov/pubmed/37513228
http://dx.doi.org/10.3390/molecules28145355
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