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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...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2019
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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. |
format | Online Article Text |
id | pubmed-6693819 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT cerretanicecilia switchabledualemissivednastabilizedsilvernanoclusters AT voschtom switchabledualemissivednastabilizedsilvernanoclusters |