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Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water

In this study, a sensitive ratiometric fluorescent nanosensor was constructed using a facile one-pot method by encapsulating carbon dots (CDs) and cadmium telluride quantum dots (CdTe QDs) into the pore cavities of a metal–organic framework (ZIF-8). In this nanosensor (CD/CdTe QD@ZIF-8), the fluores...

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Detalles Bibliográficos
Autores principales: Zhu, Ling, Shi, Lujia, Tan, Yiping, Zhang, Huaiyin, Yin, Jiacheng, Xu, Chang, Wu, Danlian, Ma, Yunsu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585436/
https://www.ncbi.nlm.nih.gov/pubmed/36329933
http://dx.doi.org/10.1039/d2ra05167b
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author Zhu, Ling
Shi, Lujia
Tan, Yiping
Zhang, Huaiyin
Yin, Jiacheng
Xu, Chang
Wu, Danlian
Ma, Yunsu
author_facet Zhu, Ling
Shi, Lujia
Tan, Yiping
Zhang, Huaiyin
Yin, Jiacheng
Xu, Chang
Wu, Danlian
Ma, Yunsu
author_sort Zhu, Ling
collection PubMed
description In this study, a sensitive ratiometric fluorescent nanosensor was constructed using a facile one-pot method by encapsulating carbon dots (CDs) and cadmium telluride quantum dots (CdTe QDs) into the pore cavities of a metal–organic framework (ZIF-8). In this nanosensor (CD/CdTe QD@ZIF-8), the fluorescence attributed to CdTe QDs was quenched by silver ions (Ag(+)), and the fluorescence intensity of CDs did not change. The introduction of ZIF-8 into the system can not only adsorb Ag(+) but also easily separate CDs and CdTe QDs from the matrix. The developed CD/CdTe QD@ZIF-8 composite used as a ratiometric fluorescent probe exhibited high sensitivity and selectivity towards Ag(+). The working linear range was 0.1–20 μM with a limit of detection (LOD) of 1.49 nM. Finally, the proposed nanosensor was applied to determine Ag(+) in lake water with satisfactory results.
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spelling pubmed-95854362022-11-02 Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water Zhu, Ling Shi, Lujia Tan, Yiping Zhang, Huaiyin Yin, Jiacheng Xu, Chang Wu, Danlian Ma, Yunsu RSC Adv Chemistry In this study, a sensitive ratiometric fluorescent nanosensor was constructed using a facile one-pot method by encapsulating carbon dots (CDs) and cadmium telluride quantum dots (CdTe QDs) into the pore cavities of a metal–organic framework (ZIF-8). In this nanosensor (CD/CdTe QD@ZIF-8), the fluorescence attributed to CdTe QDs was quenched by silver ions (Ag(+)), and the fluorescence intensity of CDs did not change. The introduction of ZIF-8 into the system can not only adsorb Ag(+) but also easily separate CDs and CdTe QDs from the matrix. The developed CD/CdTe QD@ZIF-8 composite used as a ratiometric fluorescent probe exhibited high sensitivity and selectivity towards Ag(+). The working linear range was 0.1–20 μM with a limit of detection (LOD) of 1.49 nM. Finally, the proposed nanosensor was applied to determine Ag(+) in lake water with satisfactory results. The Royal Society of Chemistry 2022-10-21 /pmc/articles/PMC9585436/ /pubmed/36329933 http://dx.doi.org/10.1039/d2ra05167b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zhu, Ling
Shi, Lujia
Tan, Yiping
Zhang, Huaiyin
Yin, Jiacheng
Xu, Chang
Wu, Danlian
Ma, Yunsu
Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title_full Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title_fullStr Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title_full_unstemmed Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title_short Dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for Ag(+) determination in lake water
title_sort dual-emissive ratiometric fluorescent nanosensor based on multi-nanomaterials for ag(+) determination in lake water
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9585436/
https://www.ncbi.nlm.nih.gov/pubmed/36329933
http://dx.doi.org/10.1039/d2ra05167b
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