A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay
Abstract Mercury ions are highly toxic at trace levels, and its pollution has posed a significant threat to the environment and public health, where current detection methods mainly require laborious operation and expensive instrumentation. Herein, a simple, cost‐effective, instrument‐free approach...
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Format: | Article |
Language: | English |
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Wiley
2021-04-01
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Series: | Global Challenges |
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Online Access: | https://doi.org/10.1002/gch2.202000099 |
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author | Maryamosadat Mavaei Azam Chahardoli Ali Fattahi Alireza Khoshroo |
author_facet | Maryamosadat Mavaei Azam Chahardoli Ali Fattahi Alireza Khoshroo |
author_sort | Maryamosadat Mavaei |
collection | DOAJ |
description | Abstract Mercury ions are highly toxic at trace levels, and its pollution has posed a significant threat to the environment and public health, where current detection methods mainly require laborious operation and expensive instrumentation. Herein, a simple, cost‐effective, instrument‐free approach for selective detection of Hg2+ based on a hand‐drawn paper‐based naked‐eye colorimetric device is developed. To develop a hand‐drawn paper‐based device, a crayon is used to build hydrophobic barriers and a paper puncher is applied to obtain patterns as a sensing zone. A green method for the synthesis of silver nanoparticles (AgNPs) is applied using Achillea Wilhelmsii (Aw) extract. The sensing ability of Aw‐AgNPs toward Hg2+ is investigated in both solution‐phase and paper substrate loaded with Aw‐AgNPs using colorimetric methods. For the paper‐based sensor, the quantification of the target relies on the visual readout of a color‐changed sensing zone modified with Aw‐AgNPs. Under optimal conditions, the color of Aw‐AgNPs in aqueous solution and on the coated paper substrate can change from brown to colorless upon addition of target, with a detection limit of 28 × 10−9 m and 0.30 × 10−6 m, respectively. In conclusion, the present study indicates the potential of this hand‐drawn eco‐friendly paper‐based sensor for monitoring of mercury. |
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institution | Directory Open Access Journal |
issn | 2056-6646 |
language | English |
last_indexed | 2024-12-16T23:26:06Z |
publishDate | 2021-04-01 |
publisher | Wiley |
record_format | Article |
series | Global Challenges |
spelling | doaj.art-722a3a898b984087aebae8e5a31e618d2022-12-21T22:12:01ZengWileyGlobal Challenges2056-66462021-04-0154n/an/a10.1002/gch2.202000099A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric AssayMaryamosadat Mavaei0Azam Chahardoli1Ali Fattahi2Alireza Khoshroo3Pharmaceutical Sciences Research Center Health institute Kermanshah University of Medical Sciences Kermanshah 6715847141 IranPharmaceutical Sciences Research Center Health institute Kermanshah University of Medical Sciences Kermanshah 6715847141 IranPharmaceutical Sciences Research Center Health institute Kermanshah University of Medical Sciences Kermanshah 6715847141 IranPharmaceutical Sciences Research Center Health institute Kermanshah University of Medical Sciences Kermanshah 6715847141 IranAbstract Mercury ions are highly toxic at trace levels, and its pollution has posed a significant threat to the environment and public health, where current detection methods mainly require laborious operation and expensive instrumentation. Herein, a simple, cost‐effective, instrument‐free approach for selective detection of Hg2+ based on a hand‐drawn paper‐based naked‐eye colorimetric device is developed. To develop a hand‐drawn paper‐based device, a crayon is used to build hydrophobic barriers and a paper puncher is applied to obtain patterns as a sensing zone. A green method for the synthesis of silver nanoparticles (AgNPs) is applied using Achillea Wilhelmsii (Aw) extract. The sensing ability of Aw‐AgNPs toward Hg2+ is investigated in both solution‐phase and paper substrate loaded with Aw‐AgNPs using colorimetric methods. For the paper‐based sensor, the quantification of the target relies on the visual readout of a color‐changed sensing zone modified with Aw‐AgNPs. Under optimal conditions, the color of Aw‐AgNPs in aqueous solution and on the coated paper substrate can change from brown to colorless upon addition of target, with a detection limit of 28 × 10−9 m and 0.30 × 10−6 m, respectively. In conclusion, the present study indicates the potential of this hand‐drawn eco‐friendly paper‐based sensor for monitoring of mercury.https://doi.org/10.1002/gch2.202000099colorimetric assaymercurypaper‐based devicesmartphone‐based detectionwater analysis |
spellingShingle | Maryamosadat Mavaei Azam Chahardoli Ali Fattahi Alireza Khoshroo A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay Global Challenges colorimetric assay mercury paper‐based device smartphone‐based detection water analysis |
title | A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay |
title_full | A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay |
title_fullStr | A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay |
title_full_unstemmed | A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay |
title_short | A Simple Method for Developing a Hand‐Drawn Paper‐Based Sensor for Mercury; Using Green Synthesized Silver Nanoparticles and Smartphone as a Hand‐Held‐Device for Colorimetric Assay |
title_sort | simple method for developing a hand drawn paper based sensor for mercury using green synthesized silver nanoparticles and smartphone as a hand held device for colorimetric assay |
topic | colorimetric assay mercury paper‐based device smartphone‐based detection water analysis |
url | https://doi.org/10.1002/gch2.202000099 |
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