A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples

A nanocomposite material characterized by peroxidase-like properties was developed through the dispersion of platinum nanoparticles (PtNPs) inside a hydrogelic matrix. The integration of the PtNP catalysts within the matrix resulted in their stabilization, preventing aggregation and precipitation in...

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Autores principales: Bertolacci, Laura, Valentini, Paola, Pompa, Pier Paolo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591478/
https://www.ncbi.nlm.nih.gov/pubmed/33110162
http://dx.doi.org/10.1038/s41598-020-75103-8
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author Bertolacci, Laura
Valentini, Paola
Pompa, Pier Paolo
author_facet Bertolacci, Laura
Valentini, Paola
Pompa, Pier Paolo
author_sort Bertolacci, Laura
collection PubMed
description A nanocomposite material characterized by peroxidase-like properties was developed through the dispersion of platinum nanoparticles (PtNPs) inside a hydrogelic matrix. The integration of the PtNP catalysts within the matrix resulted in their stabilization, preventing aggregation and precipitation in media of environmental interest, characterized by high ionic strength and by the presence of organic solutes. A thorough optimization of the matrix design was aimed at granting optimal diffusion of the reagents, in order to maintain the efficiency of the catalytic action. Such combined features allowed the implementation and prototyping of a colorimetric method for the detection of mercury in environmental water samples. The assay was based on a chromogenic reaction catalyzed by the peroxidase-like activity of PtNPs and its specific inhibition caused by trace amounts of mercury.
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spelling pubmed-75914782020-10-28 A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples Bertolacci, Laura Valentini, Paola Pompa, Pier Paolo Sci Rep Article A nanocomposite material characterized by peroxidase-like properties was developed through the dispersion of platinum nanoparticles (PtNPs) inside a hydrogelic matrix. The integration of the PtNP catalysts within the matrix resulted in their stabilization, preventing aggregation and precipitation in media of environmental interest, characterized by high ionic strength and by the presence of organic solutes. A thorough optimization of the matrix design was aimed at granting optimal diffusion of the reagents, in order to maintain the efficiency of the catalytic action. Such combined features allowed the implementation and prototyping of a colorimetric method for the detection of mercury in environmental water samples. The assay was based on a chromogenic reaction catalyzed by the peroxidase-like activity of PtNPs and its specific inhibition caused by trace amounts of mercury. Nature Publishing Group UK 2020-10-27 /pmc/articles/PMC7591478/ /pubmed/33110162 http://dx.doi.org/10.1038/s41598-020-75103-8 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Bertolacci, Laura
Valentini, Paola
Pompa, Pier Paolo
A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title_full A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title_fullStr A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title_full_unstemmed A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title_short A nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
title_sort nanocomposite hydrogel with catalytic properties for trace-element detection in real-world samples
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7591478/
https://www.ncbi.nlm.nih.gov/pubmed/33110162
http://dx.doi.org/10.1038/s41598-020-75103-8
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