Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence

A set of nine boronic-acid-derived salicylidenehydrazone (BASHY) complexes has been synthesized in good to very good chemical yields in a versatile three-component reaction. In an extension to previous reports on this dye platform, the focus was put on the electronic modification of the “vertical” p...

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Authors: Felicidade, João; F. Santos, Fabio M.; Fernández Arteaga, Jesús; Remón Ruiz, Patricia; Campos-González, René; Nguyen, Ha-Chi; Nájera, Francisco; Boscá, Francisco; Ng, David Y. W.; P. Gois, Pedro M.; Pischel, Uwe
Format: Article
Publication date:2023
Country:España
Institution:Universidad de Huelva (UHU)
Repository:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Language:English
OAI Identifier:oai:ariasmontano.uhu.es:10272/22934
Online Access:https://hdl.handle.net/10272/22934
Access Level:Open access
Keyword:Fluorescence
Photoinduced Electron Transfer
Bioimaging
Bashy dyes
NIR region
2306.91 Química Orgánica. Análisis Instrumental
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author Felicidade, João
author2 F. Santos, Fabio M.
Fernández Arteaga, Jesús
Remón Ruiz, Patricia
Campos-González, René
Nguyen, Ha-Chi
Nájera, Francisco
Boscá, Francisco
Ng, David Y. W.
P. Gois, Pedro M.
Pischel, Uwe
author2_role author
author
author
author
author
author
author
author
author
author
author_browse Boscá, Francisco
Campos-González, René
F. Santos, Fabio M.
Felicidade, João
Fernández Arteaga, Jesús
Ng, David Y. W.
Nguyen, Ha-Chi
Nájera, Francisco
P. Gois, Pedro M.
Pischel, Uwe
Remón Ruiz, Patricia
author_facet Felicidade, João
F. Santos, Fabio M.
Fernández Arteaga, Jesús
Remón Ruiz, Patricia
Campos-González, René
Nguyen, Ha-Chi
Nájera, Francisco
Boscá, Francisco
Ng, David Y. W.
P. Gois, Pedro M.
Pischel, Uwe
author_role author
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
description A set of nine boronic-acid-derived salicylidenehydrazone (BASHY) complexes has been synthesized in good to very good chemical yields in a versatile three-component reaction. In an extension to previous reports on this dye platform, the focus was put on the electronic modification of the “vertical” positions of the salicylidenehydrazone backbone. This enabled the observation of fluorescence quenching by photoinduced electron transfer (PeT), which can be reverted by the addition of acid in organic solvent (OFF-ON fluorescence switching). The resulting emission is observed in the green-to-orange spectral region (maxima at 520–590 nm). In contrast, under physiological pH conditions in water, the PeT process is inherently decativated, thereby enabling the observation of fluorescence in the red-to-NIR region (maxima at 650–680 nm) with appreciable quantum yields and lifetimes. The latter characteristic supported the application of the dyes in fluorescence lifetime imaging (FLIM) of live A549 cells.
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language eng
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network_name_str España
oai_identifier_str oai:ariasmontano.uhu.es:10272/22934
publishDate 2023
publishDateSort 2023
publisher Wiley
publisherStr Wiley
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
spelling Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence Felicidade, João F. Santos, Fabio M. Fernández Arteaga, Jesús Remón Ruiz, Patricia Campos-González, René Nguyen, Ha-Chi Nájera, Francisco Boscá, Francisco Ng, David Y. W. P. Gois, Pedro M. Pischel, Uwe Fluorescence Photoinduced Electron Transfer Bioimaging Bashy dyes NIR region 2306.91 Química Orgánica. Análisis Instrumental A set of nine boronic-acid-derived salicylidenehydrazone (BASHY) complexes has been synthesized in good to very good chemical yields in a versatile three-component reaction. In an extension to previous reports on this dye platform, the focus was put on the electronic modification of the “vertical” positions of the salicylidenehydrazone backbone. This enabled the observation of fluorescence quenching by photoinduced electron transfer (PeT), which can be reverted by the addition of acid in organic solvent (OFF-ON fluorescence switching). The resulting emission is observed in the green-to-orange spectral region (maxima at 520–590 nm). In contrast, under physiological pH conditions in water, the PeT process is inherently decativated, thereby enabling the observation of fluorescence in the red-to-NIR region (maxima at 650–680 nm) with appreciable quantum yields and lifetimes. The latter characteristic supported the application of the dyes in fluorescence lifetime imaging (FLIM) of live A549 cells. Wiley https://hdl.handle.net/10272/22934
spellingShingle Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
Felicidade, João
Fluorescence
Photoinduced Electron Transfer
Bioimaging
Bashy dyes
NIR region
2306.91 Química Orgánica. Análisis Instrumental
title Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
title_full Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
title_fullStr Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
title_full_unstemmed Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
title_short Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
title_sort Engineering the BASHY Dye Platform toward Architectures with Responsive Fluorescence
topic Fluorescence
Photoinduced Electron Transfer
Bioimaging
Bashy dyes
NIR region
2306.91 Química Orgánica. Análisis Instrumental
topic_facet Fluorescence
Photoinduced Electron Transfer
Bioimaging
Bashy dyes
NIR region
2306.91 Química Orgánica. Análisis Instrumental
url https://hdl.handle.net/10272/22934