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Cu Nanoparticle-Based Solution and Paper Strips for Colorimetric and Visual Detection of Heavy Metal Ions
[Image: see text] The intrinsic toxicity of heavy metal ions to human health or other species calls for the need to develop an analytical tool for the easy and rapid detection of these ions based on inexpensive and stable nanomaterials. This article describes the potential utility of stable Cu nanop...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9609079/ https://www.ncbi.nlm.nih.gov/pubmed/36312334 http://dx.doi.org/10.1021/acsomega.2c03687 |
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author | Baral, Trilochan Datta, Chitraniva Das, Subhojit |
author_facet | Baral, Trilochan Datta, Chitraniva Das, Subhojit |
author_sort | Baral, Trilochan |
collection | PubMed |
description | [Image: see text] The intrinsic toxicity of heavy metal ions to human health or other species calls for the need to develop an analytical tool for the easy and rapid detection of these ions based on inexpensive and stable nanomaterials. This article describes the potential utility of stable Cu nanoparticles (CuNPs) in the detection of toxic metal ions by solution and paper strip-based methods. For this, first, a dodecyl sulfate ion-stabilized CuNP (DS-CuNP) colloid was synthesized by a chemical reduction method. This was followed by treating the dispersion with heavy metal ions and monitoring the spectral change by spectrophotometric and colorimetric techniques. Among a host of metal ions, Hg(2+), Cd(2+), and Pb(2+) have been found to significantly affect the surface plasmon resonance band of CuNPs by concomitantly altering the color of its solution. Notably, the brownish color of CuNP solution changed readily to milky white in the presence of Hg(2+). Furthermore, the fabricated brownish-yellow test paper strips containing DS-CuNPs transformed to a prominent white color in the presence of a few drops of Hg(2+) solution. This change in color of the paper strips could be visually detected by the naked eye. The experiments involving the detection of the various ions were carried out by optimizing the experimental conditions qualitatively as well as quantitatively. The limit of detection of the analytes (metal ions) has been found to be 10 μM. Routine analytical techniques like UV–vis spectroscopy, dynamic light scattering, transmission electron microscopy, and Fourier transform infrared spectroscopy formed part of the experiments. |
format | Online Article Text |
id | pubmed-9609079 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-96090792022-10-28 Cu Nanoparticle-Based Solution and Paper Strips for Colorimetric and Visual Detection of Heavy Metal Ions Baral, Trilochan Datta, Chitraniva Das, Subhojit ACS Omega [Image: see text] The intrinsic toxicity of heavy metal ions to human health or other species calls for the need to develop an analytical tool for the easy and rapid detection of these ions based on inexpensive and stable nanomaterials. This article describes the potential utility of stable Cu nanoparticles (CuNPs) in the detection of toxic metal ions by solution and paper strip-based methods. For this, first, a dodecyl sulfate ion-stabilized CuNP (DS-CuNP) colloid was synthesized by a chemical reduction method. This was followed by treating the dispersion with heavy metal ions and monitoring the spectral change by spectrophotometric and colorimetric techniques. Among a host of metal ions, Hg(2+), Cd(2+), and Pb(2+) have been found to significantly affect the surface plasmon resonance band of CuNPs by concomitantly altering the color of its solution. Notably, the brownish color of CuNP solution changed readily to milky white in the presence of Hg(2+). Furthermore, the fabricated brownish-yellow test paper strips containing DS-CuNPs transformed to a prominent white color in the presence of a few drops of Hg(2+) solution. This change in color of the paper strips could be visually detected by the naked eye. The experiments involving the detection of the various ions were carried out by optimizing the experimental conditions qualitatively as well as quantitatively. The limit of detection of the analytes (metal ions) has been found to be 10 μM. Routine analytical techniques like UV–vis spectroscopy, dynamic light scattering, transmission electron microscopy, and Fourier transform infrared spectroscopy formed part of the experiments. American Chemical Society 2022-10-09 /pmc/articles/PMC9609079/ /pubmed/36312334 http://dx.doi.org/10.1021/acsomega.2c03687 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Baral, Trilochan Datta, Chitraniva Das, Subhojit Cu Nanoparticle-Based Solution and Paper Strips for Colorimetric and Visual Detection of Heavy Metal Ions |
title | Cu Nanoparticle-Based
Solution and Paper Strips for
Colorimetric and Visual Detection of Heavy Metal Ions |
title_full | Cu Nanoparticle-Based
Solution and Paper Strips for
Colorimetric and Visual Detection of Heavy Metal Ions |
title_fullStr | Cu Nanoparticle-Based
Solution and Paper Strips for
Colorimetric and Visual Detection of Heavy Metal Ions |
title_full_unstemmed | Cu Nanoparticle-Based
Solution and Paper Strips for
Colorimetric and Visual Detection of Heavy Metal Ions |
title_short | Cu Nanoparticle-Based
Solution and Paper Strips for
Colorimetric and Visual Detection of Heavy Metal Ions |
title_sort | cu nanoparticle-based
solution and paper strips for
colorimetric and visual detection of heavy metal ions |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9609079/ https://www.ncbi.nlm.nih.gov/pubmed/36312334 http://dx.doi.org/10.1021/acsomega.2c03687 |
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