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MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection
In this work, ammonia cross-linked 8-armed polyethylene glycol hydrogel material was successfully synthesized and used as a template for synthesizing nanoparticles with fluorescent properties. The 8-armed polyethylene glycol hydrogel template was used to prepare molybdenum disulfide quantum dots (Mo...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8699157/ https://www.ncbi.nlm.nih.gov/pubmed/34940232 http://dx.doi.org/10.3390/bios11120475 |
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author | Zhang, Xiaoyuan Su, Zhiqiang |
author_facet | Zhang, Xiaoyuan Su, Zhiqiang |
author_sort | Zhang, Xiaoyuan |
collection | PubMed |
description | In this work, ammonia cross-linked 8-armed polyethylene glycol hydrogel material was successfully synthesized and used as a template for synthesizing nanoparticles with fluorescent properties. The 8-armed polyethylene glycol hydrogel template was used to prepare molybdenum disulfide quantum dots (MoS(2) QDs). The ammonium tetrathiomolybdate functioned as a molybdenum source and hydrazine hydrate functioned as a reducing agent. The fluorescence properties of the as-prepared MoS(2) QDs were investigated. The bursting of fluorescence caused by adding different concentrations of explosive TNT was studied. The study indicated that the synthesized MoS(2) QDs can be used for trace TNT detection with a detection limit of 6 nmol/L and a detection range of 16–700 nmol/L. Furthermore, it indicated that the fluorescence-bursting mechanism is static bursting. |
format | Online Article Text |
id | pubmed-8699157 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-86991572021-12-24 MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection Zhang, Xiaoyuan Su, Zhiqiang Biosensors (Basel) Article In this work, ammonia cross-linked 8-armed polyethylene glycol hydrogel material was successfully synthesized and used as a template for synthesizing nanoparticles with fluorescent properties. The 8-armed polyethylene glycol hydrogel template was used to prepare molybdenum disulfide quantum dots (MoS(2) QDs). The ammonium tetrathiomolybdate functioned as a molybdenum source and hydrazine hydrate functioned as a reducing agent. The fluorescence properties of the as-prepared MoS(2) QDs were investigated. The bursting of fluorescence caused by adding different concentrations of explosive TNT was studied. The study indicated that the synthesized MoS(2) QDs can be used for trace TNT detection with a detection limit of 6 nmol/L and a detection range of 16–700 nmol/L. Furthermore, it indicated that the fluorescence-bursting mechanism is static bursting. MDPI 2021-11-25 /pmc/articles/PMC8699157/ /pubmed/34940232 http://dx.doi.org/10.3390/bios11120475 Text en © 2021 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 Zhang, Xiaoyuan Su, Zhiqiang MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title | MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title_full | MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title_fullStr | MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title_full_unstemmed | MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title_short | MoS(2) QDs/8-Armed Poly(Ethylene Glycol) Fluorescence Sensor for Three Nitrotoluenes (TNT) Detection |
title_sort | mos(2) qds/8-armed poly(ethylene glycol) fluorescence sensor for three nitrotoluenes (tnt) detection |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8699157/ https://www.ncbi.nlm.nih.gov/pubmed/34940232 http://dx.doi.org/10.3390/bios11120475 |
work_keys_str_mv | AT zhangxiaoyuan mos2qds8armedpolyethyleneglycolfluorescencesensorforthreenitrotoluenestntdetection AT suzhiqiang mos2qds8armedpolyethyleneglycolfluorescencesensorforthreenitrotoluenestntdetection |