2020
Structural Modifications of Nile Red Carbon Monoxide Fluorescent Probe: Sensing Mechanism and Applications
MADEA, Dominik, Marek MARTÍNEK, Lucie MUCHOVA, Jiri VANA, Libor VITEK et. al.Základní údaje
Originální název
Structural Modifications of Nile Red Carbon Monoxide Fluorescent Probe: Sensing Mechanism and Applications
Autoři
MADEA, Dominik (203 Česká republika, domácí), Marek MARTÍNEK (203 Česká republika, domácí), Lucie MUCHOVA (203 Česká republika), Jiri VANA (203 Česká republika), Libor VITEK (203 Česká republika) a Petr KLÁN (203 Česká republika, garant, domácí)
Vydání
Journal of Organic Chemistry, Washington, D.C. American Chemical Society, 2020, 0022-3263
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10401 Organic chemistry
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.354
Kód RIV
RIV/00216224:14310/20:00114239
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000518875700055
Klíčová slova anglicky
TURN-ON PROBE; LIVING CELLS; SENSITIVE DETECTION; SELECTIVE DETECTION; FLUOROGENIC PROBE; NITRIC-OXIDE; DUAL PROBE; CO; COMPLEXES; DYES
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 17. 2. 2023 21:06, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Carbon monoxide (CO) is a cell-signaling molecule (gasotransmitter) produced endogenously by oxidative catabolism of heme, and the understanding of its spatial and temporal sensing at the cellular level is still an open challenge. Synthesis, optical properties, and study of the sensing mechanism of Nile red Pd-based CO chemosensors, structurally modified by core and bridge substituents, in methanol and aqueous solutions are reported in this work. The sensing fluorescence "off-on" response of palladacycle-based sensors possessing low-background fluorescence arises from their reaction with CO to release the corresponding highly fluorescent Nile red derivatives in the final step. Our mechanistic study showed that electron-withdrawing and electron-donating core substituents affect the rate-determining step of the reaction. More importantly, the substituents were found to have a substantial effect on the Nile red sensor fluorescence quantum yields, hereby defining the sensing detection limit. The highest overall fluorescence and sensing rate enhancements were found for a 2-hydroxy palladacycle derivative, which was used in subsequent biological studies on mouse hepatoma cells as it easily crosses the cell membrane and qualitatively traces the localization of CO within the intracellular compartment with the linear quantitative response to increasing CO concentrations.
Návaznosti
GA18-12477S, projekt VaV |
|