Detailed Information on Publication Record
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.Basic information
Original name
Photochemistry of (Z)-Isovinylneoxanthobilirubic Acid Methyl Ester, a Bilirubin Dipyrrinone Subunit: Femtosecond Transient Absorption and Stimulated Raman Emission Spectroscopy
Authors
MADEA, Dominik (203 Czech Republic, belonging to the institution), Taufiqueahmed Pirsaheb MUJAWAR (356 India, belonging to the institution), Aleš DVOŘÁK, Kateřina POSPÍŠILOVÁ, Lucie MUCHOVÁ, Petra ČUBÁKOVÁ, Miroslav KLOZ, Jakub ŠVENDA (203 Czech Republic, belonging to the institution), Libor VÍTEK and Petr KLÁN (203 Czech Republic, guarantor, belonging to the institution)
Edition
Journal of Organic Chemistry, American Chemical Society, 2022, 0022-3263
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10401 Organic chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 3.600
RIV identification code
RIV/00216224:14310/22:00126178
Organization unit
Faculty of Science
UT WoS
000773458100083
Keywords in English
Alcohols; Molecular structure; Photooxidation; Quantum mechanics; Quantum yield
Tags
Tags
International impact, Reviewed
Změněno: 15/3/2023 22:10, Mgr. Michaela Hylsová, Ph.D.
Abstract
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.
Links
EF16_025/0007381, research and development project |
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EF17_043/0009632, research and development project |
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LM2018121, research and development project |
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NV18-07-00342, research and development project |
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