2022
Photochemistry of (Z)-Isovinylneoxanthobilirubic Acid Methyl Ester, a Bilirubin Dipyrrinone Subunit: Femtosecond Transient Absorption and Stimulated Raman Emission Spectroscopy
MADEA, Dominik, Taufiqueahmed Pirsaheb MUJAWAR, Aleš DVOŘÁK, Kateřina POSPÍŠILOVÁ, Lucie MUCHOVÁ et. al.Základní údaje
Originální název
Photochemistry of (Z)-Isovinylneoxanthobilirubic Acid Methyl Ester, a Bilirubin Dipyrrinone Subunit: Femtosecond Transient Absorption and Stimulated Raman Emission Spectroscopy
Autoři
MADEA, Dominik (203 Česká republika, domácí), Taufiqueahmed Pirsaheb MUJAWAR (356 Indie, domácí), Aleš DVOŘÁK, Kateřina POSPÍŠILOVÁ, Lucie MUCHOVÁ, Petra ČUBÁKOVÁ, Miroslav KLOZ, Jakub ŠVENDA (203 Česká republika, domácí), Libor VÍTEK a Petr KLÁN (203 Česká republika, garant, domácí)
Vydání
Journal of Organic Chemistry, American Chemical Society, 2022, 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: 3.600
Kód RIV
RIV/00216224:14310/22:00126178
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000773458100083
Klíčová slova anglicky
Alcohols; Molecular structure; Photooxidation; Quantum mechanics; Quantum yield
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 3. 2023 22:10, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Bilirubin (BR) is an essential metabolite formed by the catabolism of heme. Phototherapy with blue-green light can be applied to reduce high concentrations of BR in blood and is used especially in the neonatal period. In this work, we studied the photochemistry of (Z)-isovinylneoxanthobilirubic acid methyl ester, a dipyrrinone subunit of BR, by steady-state absorption, femtosecond transient absorption, and stimulated Raman spectroscopies. Both the (Z)- and (E)-configurational isomers of isovinylneoxanthobilirubic acid undergo wavelength-dependent and reversible photoisomerization. The isomerization from the excited singlet state is ultrafast (the lifetimes of (Z)- and (E)-isomers were found to be similar to 0.9 and 0.1 ps, respectively), and its efficiencies increase with increased photon energy. In addition, we studied sensitized photooxidation of the dipyrrinone subunit by singlet oxygen that leads to the formation of propentdyopents. Biological activities of these compounds, namely, effects on the superoxide production, lipoperoxidation, and tricarboxylic acid cycle metabolism, were also studied. Finally, different photochemical and biological properties of this BR subunit and its structural analogue, (Z)-vinylneoxanthobilirubic acid methyl ester, studied before, are discussed.
Návaznosti
EF16_025/0007381, projekt VaV |
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EF17_043/0009632, projekt VaV |
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LM2018121, projekt VaV |
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NV18-07-00342, projekt VaV |
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