Singlet oxygen - Wikipedia
Singlet oxygen refers to one of two singlet electronic excited states. The two singlet states are denoted 1 Σ + g and 1 Δ g (the preceding superscript "1" indicates a singlet state).
Review Singlet oxygen: Properties, generation, detection, and ...
Jan 5, 2024 · Singlet oxygen (1 O 2) is molecular oxygen in the excited state with high energy and electrophilic properties. It is widely found in nature, and its important role is gradually extending from chemical syntheses and medical techniques to environmental remediation.
Singlet Oxygen Quantum Yields in Environmental Waters
Mar 8, 2021 · In 1 O 2 phosphorescence experiments, singlet oxygen is directly observed via its phosphorescence emission in the near-infrared (NIR; peak at around 1270 nm). (87,89,109,119,120) This emission can be monitored either …
Singlet Oxygen: Generation and Properties - photobiology
Singlet oxygen luminescence: Luminescence is the Agold standard@ of singlet oxygen identification. Measurements in condensed phases are based on the 1269 nm luminescence emitted in the radiative decay of O 2 ( 1 D g + ) and the 634 nm dimol emission.
Singlet oxygen detection in biological systems: Uses and limitations
Singlet oxygen is a highly reactive form of Reactive Oxygen Species (ROS), which preferentially interacts with most biomolecules such as lipids, proteins, and DNA/RNA, with a preference for electron rich regions which imparts a form of selectivity to its interaction.
Singlet oxygen probes: Diversity in signal generation mechanisms …
Feb 15, 2021 · Upon the reaction with singlet oxygen, the emission of Ru (II) complex at 610 nm increases in neutral and basic buffer solutions due to endoperoxide product on the anthryl group that interrupted triplet–triplet intramolecular energy transfer.
Best Practices to Directly Assess Heterogeneous Singlet Oxygen ...
May 25, 2024 · We now report a relatively easy way to obtain good quality phosphorescence spectra and decays of photosensitized 1 O 2 (1 Δ g) at the solid gas interface, without the use of suspension nor high intensity excitation source.
Spin-Restricted Descriptions of Singlet Oxygen Reactions from …
May 13, 2024 · The highly reactive first singlet excited state of molecular oxygen (1 Δ g, often referred to as “singlet oxygen”) is often produced by photosensitization via the type II process of reactive oxygen species.
A discussion on the possible involvement of singlet oxygen in oxygen …
May 11, 2021 · The singlet oxygen not only decays to triplet oxygen but also reacts with electrolyte to form reactive intermediates, such as ROOH, R*, and ROO* . The active singlet oxygen has been demonstrated as an oxidant to react with the carbon-contained electrolytes.
Singlet oxygen can be produced as the result of the physical excitation of molecular oxygen, chemical or natural biological reactions, and photosensitization process.