Photouncaging of Carboxylic Acids from Cyanine Dyes with Near-Infrared Light.
Angew Chem Int Ed Engl
; 61(33): e202204391, 2022 08 15.
Article
in En
| MEDLINE
| ID: mdl-35578980
ABSTRACT
Near-infrared light (NIR; 650-900â
nm) offers unparalleled advantages as a biocompatible stimulus. The development of photocages that operate in this region represents a fundamental challenge due to the low energy of the excitation light. Herein, we repurpose cyanine dyes into photocages that are available on a multigram scale in three steps and efficiently release carboxylic acids in aqueous media upon irradiation with NIR light up to 820â
nm. The photouncaging process is examined using several techniques, providing evidence that it proceeds via photooxidative pathway. We demonstrate the practical utility in live HeLa cells by delivery and release of the carboxylic acid cargo, that was otherwise not uptaken by cells in its free form. In combination with modularity of the cyanine scaffold, the realization of these accessible photocages will fully unleash the potential of the emerging field of NIR-photoactivation and facilitate its widespread adoption outside the photochemistry community.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Quinolines
/
Coloring Agents
Limits:
Humans
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2022
Document type:
Article