Artículo
The intramolecular self-healing strategy applied to near infrared fluorescent aminotricarbocyanines
Abbas, Javier Martin
; Stortz, Martin Dario
; Rodriguez, Hernan Bernardo
; Levi, Valeria
; Wolosiuk, Alejandro
; Spagnuolo, Carla Cecilia
Fecha de publicación:
02/2021
Editorial:
Elsevier
Revista:
Dyes and Pigments
ISSN:
0143-7208
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We present the synthesis and photophysical studies of three novel near-infrared (NIR) aminotricarbocyanine derivatives with self-contained antioxidant moieties, gallic acid and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox). The aim of this work is to apply the intramolecular self-healing strategy to water soluble aminotricarbocyanines exploring the effect of the direct attachment of an antioxidant moiety to the fluorophore core. The synthesized dyes also include a functional group (-COOH) in their chemical structure for further (bio)conjugation of the fluorescent probe to biomolecules or surfaces. The photostability of the dyes was investigated spectroscopically in cuvette experiments as well as microscopically in dye embedded PMMA films. The rigid heptamethine modified dyes show enhanced photostability in aqueous and non-aqueous air-saturated environments by means of a self-healing process through redox quenching of reactive intermediates from excited states.
Palabras clave:
ANTIOXIDANT
,
FLUORESCENCE
,
FRAP
,
NEAR-INFRARED
,
TRICARBOCYANINE
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Articulos (UE-INN - NODO CONSTITUYENTES)
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO CONSTITUYENTES
Articulos de UNIDAD EJECUTORA INSTITUTO DE NANOCIENCIA Y NANOTECNOLOGIA - NODO CONSTITUYENTES
Articulos(CIHIDECAR)
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos de CENTRO DE INVESTIGACIONES EN HIDRATOS DE CARBONO
Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos(IQUIBICEN)
Articulos de INSTITUTO DE QUIMICA BIOLOGICA DE LA FACULTAD DE CS. EXACTAS Y NATURALES
Articulos de INSTITUTO DE QUIMICA BIOLOGICA DE LA FACULTAD DE CS. EXACTAS Y NATURALES
Citación
Abbas, Javier Martin; Stortz, Martin Dario; Rodriguez, Hernan Bernardo; Levi, Valeria; Wolosiuk, Alejandro; et al.; The intramolecular self-healing strategy applied to near infrared fluorescent aminotricarbocyanines; Elsevier; Dyes and Pigments; 186; 2-2021; 1-10
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