Results 11 to 20 of about 162,281 (356)

Singlet Sigma: The “Other” Singlet Oxygen in Solution [PDF]

Photochemistry and Photobiology, 1999
AbstractThe lowest excited electronic state of molecular oxygen, O2(a1‐DLg), is often called simply singlet oxygen. This singlet delta state is an acknowledged and well‐studied intermediate in many solution‐phase photosystems. However, the second excited electronic state of oxygen, O2(b1δg+), is also a singlet.
Weldon, D., Poulsen, T.D., Mikkelsen, K.V., Ogilby, P.R.   +3 more
openaire   +3 more sources

Singlet Dioxygen ¹O₂, its Generation, Physico-Chemical Properties and its Possible Hormetic Behavior in Cancer Therapy

Substantia, 2022
Singlet dioxygen 1O2 is one excited state among the three other possible spectroscopic states of molecular oxygen. Here, we first describe the use of published spectroscopic data and thermodynamic modeling based on irreversible entropy production.
Marc Henry, Miro Radman, Luc Benichou, Khalid O. Alfarouk, Laurent Schwartz   +4 more
doaj   +1 more source

Mechanochemical generation of singlet oxygen

RSC Advances, 2020
Controlled generation of singlet oxygen is very important due to its involvement in scheduled cellular maintenance processes and therapeutic potential.
Abdurrahman Turksoy, Deniz Yildiz, Simay Aydonat, Tutku Beduk, Merve Canyurt, Bilge Baytekin, Engin U. Akkaya   +6 more
openaire   +6 more sources

Structure-activity study of furyl aryloxazole fluorescent probes for the detection of singlet oxygen. [PDF]

PLoS ONE, 2018
In this study, we report the synthesis and the photochemical behavior of a series of new "click-on" fluorescent probes designed to detect singlet oxygen.
Renzo P Zanocco, Roger Bresoli-Obach, Santi Nonell, Else Lemp, Antonio L Zanocco   +4 more
doaj   +1 more source

Erythrocuprein and singlet oxygen

FEBS Letters, 1972
McCord and Fridovich [ 1,2] have shown that erythrocuprein, the copper and zinc containing protein extracted from red blood cells, can enzymatically disproportionate superoxide radicals (Oh), an intermediate of the reduction of oxygen, the generation of which in some Ha 0s -producing biological oxidations has been demonstrated [3].
Lilia Calabrese, Bruno Mondovi, Alessandro Finazzi Agrò, G. Rotilio, Pasquale De Sole, Carlo Giovagnoli   +5 more
openaire   +3 more sources

Laser-induced generation of singlet oxygen and its role in the cerebrovascular physiology [PDF]

, 2017
For over 55 years, laser technology has expanded from laboratory research to widespread fields, for example telecommunication and data storage amongst others.
Bragina, O. A., Gekaluyk, A. S., Goltsov, Alexey, Rafailov, E. U., Saranceva, E. I., Semyachkina-Glushkovskaya, O. V., Sokolovski, S. G., Tuchin, V. V.   +7 more
core   +1 more source

Phosphoprotein SAK1 is a regulator of acclimation to singlet oxygen in Chlamydomonas reinhardtii

eLife, 2014
Singlet oxygen is a highly toxic and inevitable byproduct of oxygenic photosynthesis. The unicellular green alga Chlamydomonas reinhardtii is capable of acclimating specifically to singlet oxygen stress, but the retrograde signaling pathway from the ...
Setsuko Wakao, Brian L Chin, Heidi K Ledford, Rachel M Dent, David Casero, Matteo Pellegrini, Sabeeha S Merchant, Krishna K Niyogi   +7 more
doaj   +1 more source

Temperature dependence of singlet oxygen generation by different photosensitizers [PDF]

EPJ Web of Conferences, 2019
The temperature dependences of the lifetimes and the efficiency of singlet oxygen generation for a set of compounds (porphyrins, metalloporphyrins, porphycene, terrylene etc.) has been measured and characterized. Based on the character of the temperature
Starukhin Aleksander, Gorski Aleksander, Dobkowski Jacek   +2 more
doaj   +1 more source

New Photochromic α-Methylchalcones Are Highly Photostable, Even under Singlet Oxygen Conditions: Breaking the α-Methyl Michael-System Reactivity by Reversible Peroxybiradical Formation

Molecules, 2021
The α-methylated chalcones 7a–7e behave as P-type photochromic substances with photo-stationary states (PSS) as high as 15:85 when irradiated at 350 nm.
Axel G. Griesbeck, Banu Öngel, Eric Brüllingen, Melissa Renner   +3 more
doaj   +1 more source

Highly efficient optogenetic cell ablation in C. elegans using membrane-targeted miniSOG. [PDF]

, 2016
The genetically encoded photosensitizer miniSOG (mini Singlet Oxygen Generator) can be used to kill cells in C. elegans. miniSOG generates the reactive oxygen species (ROS) singlet oxygen after illumination with blue light.
Chisholm, Andrew D, Xu, Suhong
core   +1 more source