Spectroscopic, conformational analysis, structural benchmarking, excited state dynamics, and the photovoltaic properties of Enalapril and Lisinopril

UJ Undiandeye, H Louis, TE Gber… - Journal of the Indian …, 2022 - Elsevier
There have been numerous attempts to theoretically design a better photovoltaic property
with much interest on how to improved absorption and emission parameters of most reactive …

The Orange Carotenoid Protein triggers cyanobacterial photoprotection by quenching bilins via a structural switch of Its carotenoid

N Liguori, IHM van Stokkum… - Journal of the …, 2024 - ACS Publications
Cyanobacteria were the first microorganisms that released oxygen into the atmosphere
billions of years ago. To do it safely under intense sunlight, they developed strategies that …

Relaxation dynamics of high-energy excited states of carotenoids studied by UV excitation and pump–repump–probe transient absorption spectroscopy

V Kuznetsova, M Fuciman, T Polívka - Physical Chemistry Chemical …, 2023 - pubs.rsc.org
The excited states of carotenoids have been a subject of numerous studies. While a majority
of these reports target the excited state dynamics initiated by the excitation of the S2 state …

Carotenoid responds to excess energy dissipation in the LH2 complex from Rhodoblastus acidophilus

I Šímová, V Kuznetsova, AT Gardiner, V Šebelík… - Photosynthesis …, 2022 - Springer
The functions of both (bacterio) chlorophylls and carotenoids in light-harvesting complexes
have been extensively studied during the past decade, yet, the involvement of BChl a high …

UV Excitation of Carotenoid Binding Proteins OCP and HCP: Excited‐State Dynamics and Product Formation

T Khan, V Kuznetsova, MA Dominguez‐Martin… - …, 2022 - Wiley Online Library
Over the last decade the orange carotenoid protein (OCP) gained attention due to its role in
photoprotection in cyanobacteria. Recently, other carotenoid binding proteins such as …

Ultrafast spectroscopy of the hydrophilic carotenoid crocin at various pH

E Özcan, I Šímová, D Bína, R Litvín… - Physical Chemistry …, 2024 - pubs.rsc.org
This study delves into the pH-dependent effects on the excited-state behavior of crocin, a
hydrophilic carotenoid with diverse functions in biological systems. Steady-state …

Synthesis and spectroscopic properties of carotenoid bis-phenylhydrazone astaxanthin: extending conjugation to a C [double bond, length as m-dash] N group

E Özcan, G Keşan, P Chábera, R Litvín… - New Journal of …, 2024 - pubs.rsc.org
We report on the synthesis and detailed spectroscopic characterization of bis-
phenylhydrazone astaxanthin (BPH-Asx), a derivative of astaxanthin (Asx), in which the …

[HTML][HTML] Raman vibrational signatures of excited states of echinenone in the Orange Carotenoid Protein (OCP) and implications for its photoactivation mechanism

P Chrupková, IHM van Stokkum, T Friedrich… - Journal of Molecular …, 2024 - Elsevier
In this study, the vibrational characteristics of optically excited echinenone in various
solvents and the Orange Carotenoid Protein (OCP) in red and orange states are …

The molecular origin of the OCP-dependent non-photochemical quenching mechanism in cyanobacteria

N Liguori, I van Stokkum, F Muzzopappa, J Kennis… - 2022 - chemrxiv.org
Cyanobacteria were the first microorganisms that released oxygen into the atmosphere
billions of years ago. To do it safely under intense sunlight, they developed strategies that …

[HTML][HTML] Combined contributions of carotenoids and chlorophylls in two-photon spectra of photosynthetic pigment–protein complexes—A new way to quantify …

J Nowak, J Füller, PJ Walla - The Journal of Chemical Physics, 2022 - pubs.aip.org
Transitions into the first excited state of carotenoids, Car S 1, are optically forbidden in
conventional one-photon excitation (OPE) but are possible via two-photon excitation (TPE) …