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Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters

[Image: see text] We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H(2)O(2), whi...

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Autores principales: Cerretani, Cecilia, Vosch, Tom
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6693819/
https://www.ncbi.nlm.nih.gov/pubmed/31459877
http://dx.doi.org/10.1021/acsomega.9b00614
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author Cerretani, Cecilia
Vosch, Tom
author_facet Cerretani, Cecilia
Vosch, Tom
author_sort Cerretani, Cecilia
collection PubMed
description [Image: see text] We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H(2)O(2), while the opposite conversion can be achieved by the addition of NaBH(4). Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors.
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spelling pubmed-66938192019-08-27 Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters Cerretani, Cecilia Vosch, Tom ACS Omega [Image: see text] We investigated an ss-DNA sequence that can stabilize a red- and a green-emissive silver nanocluster (DNA-AgNC). These two emitters can convert between each other in a reversible way. The change from red- to green-emitting DNA-AgNCs can be triggered by the addition of H(2)O(2), while the opposite conversion can be achieved by the addition of NaBH(4). Besides demonstrating the switching between red- and green-emissive DNA-AgNCs and determining the recoverability, we fully characterized the photophysical properties, such as steady-state emission, quantum yield, fluorescence lifetime, and anisotropy of the two emissive species. Understanding the mechanism behind the remarkable conversion between the two emitters could lead to the development of a new range of DNA-AgNC-based ratiometric sensors. American Chemical Society 2019-04-30 /pmc/articles/PMC6693819/ /pubmed/31459877 http://dx.doi.org/10.1021/acsomega.9b00614 Text en Copyright © 2019 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Cerretani, Cecilia
Vosch, Tom
Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title_full Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title_fullStr Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title_full_unstemmed Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title_short Switchable Dual-Emissive DNA-Stabilized Silver Nanoclusters
title_sort switchable dual-emissive dna-stabilized silver nanoclusters
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6693819/
https://www.ncbi.nlm.nih.gov/pubmed/31459877
http://dx.doi.org/10.1021/acsomega.9b00614
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