Gold nanozyme-based paper chip for colorimetric detection of mercury ions

Abstract In this study, we developed a facile gold nanozyme-based paper chip (AuNZ-PAD) for Hg2+ detection. This device has the advantages of being simple, rapid, cost effective, sensitive, selective, high throughput, and applicable to onsite detection. The colorimetric mercury assay on the AuNZ-PAD...

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Autores principales:	Kwi Nam Han, Jong-Soon Choi, Joseph Kwon
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/57dd83891b284c278769845498da218c
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spelling	oai:doaj.org-article:57dd83891b284c278769845498da218c2021-12-02T12:32:27ZGold nanozyme-based paper chip for colorimetric detection of mercury ions10.1038/s41598-017-02948-x2045-2322https://doaj.org/article/57dd83891b284c278769845498da218c2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02948-xhttps://doaj.org/toc/2045-2322Abstract In this study, we developed a facile gold nanozyme-based paper chip (AuNZ-PAD) for Hg2+ detection. This device has the advantages of being simple, rapid, cost effective, sensitive, selective, high throughput, and applicable to onsite detection. The colorimetric mercury assay on the AuNZ-PAD is established based on the enzyme-like catalytic activity of gold nanoparticles promoted by the formation of Au–Hg amalgam, which is correlated to the intensity of the colorimetric response resulting from the catalytic reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) and H2O2. Highly sensitive and selective detection of Hg2+ ions is achieved in both distilled and tap water samples, indicating the feasibility and applicability of our device for the determination of mercury pollution in real samples. Moreover, AuNZ-PAD analysis using a smartphone camera eliminates the need for expensive analytical equipment, thereby increasing the practicality of field monitoring of trace Hg2+ compared with other sensing methods.Kwi Nam HanJong-Soon ChoiJoseph KwonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kwi Nam Han Jong-Soon Choi Joseph Kwon Gold nanozyme-based paper chip for colorimetric detection of mercury ions
description	Abstract In this study, we developed a facile gold nanozyme-based paper chip (AuNZ-PAD) for Hg2+ detection. This device has the advantages of being simple, rapid, cost effective, sensitive, selective, high throughput, and applicable to onsite detection. The colorimetric mercury assay on the AuNZ-PAD is established based on the enzyme-like catalytic activity of gold nanoparticles promoted by the formation of Au–Hg amalgam, which is correlated to the intensity of the colorimetric response resulting from the catalytic reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) and H2O2. Highly sensitive and selective detection of Hg2+ ions is achieved in both distilled and tap water samples, indicating the feasibility and applicability of our device for the determination of mercury pollution in real samples. Moreover, AuNZ-PAD analysis using a smartphone camera eliminates the need for expensive analytical equipment, thereby increasing the practicality of field monitoring of trace Hg2+ compared with other sensing methods.
format	article
author	Kwi Nam Han Jong-Soon Choi Joseph Kwon
author_facet	Kwi Nam Han Jong-Soon Choi Joseph Kwon
author_sort	Kwi Nam Han
title	Gold nanozyme-based paper chip for colorimetric detection of mercury ions
title_short	Gold nanozyme-based paper chip for colorimetric detection of mercury ions
title_full	Gold nanozyme-based paper chip for colorimetric detection of mercury ions
title_fullStr	Gold nanozyme-based paper chip for colorimetric detection of mercury ions
title_full_unstemmed	Gold nanozyme-based paper chip for colorimetric detection of mercury ions
title_sort	gold nanozyme-based paper chip for colorimetric detection of mercury ions
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/57dd83891b284c278769845498da218c
work_keys_str_mv	AT kwinamhan goldnanozymebasedpaperchipforcolorimetricdetectionofmercuryions AT jongsoonchoi goldnanozymebasedpaperchipforcolorimetricdetectionofmercuryions AT josephkwon goldnanozymebasedpaperchipforcolorimetricdetectionofmercuryions
_version_	1718394035801948160

Gold nanozyme-based paper chip for colorimetric detection of mercury ions

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