Singlet oxygen photophysics: from liquid solvents to mammalian cells

M Bregnhøj, F Thorning, PR Ogilby - Chemical Reviews, 2024 - ACS Publications
Molecular oxygen, O2, has long provided a cornerstone for studies in chemistry, physics,
and biology. Although the triplet ground state, O2 (X3Σg–), has garnered much attention, the …

Singlet oxygen: there is indeed something new under the sun

PR Ogilby - Chemical Society Reviews, 2010 - pubs.rsc.org
Singlet oxygen, O2 (a1Δg), the lowest excited electronic state of molecular oxygen, has
been known to the scientific community for∼ 80 years. It has a characteristic chemistry that …

Physical mechanisms of generation and deactivation of singlet oxygen

C Schweitzer, R Schmidt - Chemical reviews, 2003 - ACS Publications
For more than 70 years, researchers in several areas of science have been intrigued by the
physical and chemical properties of the lowest excited states of molecular oxygen. With two …

Solvent-dependent singlet oxygen lifetimes: temperature effects implicate tunneling and charge-transfer interactions

M Bregnhøj, M Westberg, F Jensen… - Physical Chemistry …, 2016 - pubs.rsc.org
The effect of solvent on the lifetime of singlet oxygen, O2 (a1Δg), particularly the pronounced
H/D solvent isotope effect, has drawn the attention of chemists for almost 50 years. The …

Singlet-oxygen chemiluminescence in peroxide reactions

W Adam, DV Kazakov, VP Kazakov - Chemical reviews, 2005 - ACS Publications
The process of transforming chemical energy into light emission, a phenomenon known as
chemiluminescence (CL), has been an attractive topic of intensive research over the years …

Singlet oxygen as a reactive intermediate in the photodegradation of an electroluminescent polymer

RD Scurlock, B Wang, PR Ogilby… - Journal of the …, 1995 - ACS Publications
Singlet molecular oxygen (a 'Ag) is shown to be a reactive intermediate in the photoinduced
oxidative decomposition of the electroluminescent material poly (2, 5-bis (5, 6 …

Singlet oxygen photophysics in liquid solvents: converging on a unified picture

M Bregnhøj, M Westberg, BF Minaev… - Accounts of chemical …, 2017 - ACS Publications
Conspectus Singlet oxygen, O2 (a1Δg), the lowest excited electronic state of molecular
oxygen, is an omnipresent part of life on earth. It is readily formed through a variety of …

Singlet oxygen in a cell: spatially dependent lifetimes and quenching rate constants

MK Kuimova, G Yahioglu, PR Ogilby - Journal of the American …, 2009 - ACS Publications
Singlet molecular oxygen, O2 (a1Δg), can be created in a single cell from ground-state
oxygen, O2 (X3Σg−), upon focused laser irradiation of an intracellular sensitizer. This …

Aromatic ketones as standards for singlet molecular oxygen O2 (1Δg) photosensitization. Time-resolved photoacoustic and near-IR emission studies

C Martí, O Jürgens, O Cuenca, M Casals… - Journal of Photochemistry …, 1996 - Elsevier
Time-resolved near-IR emission and optoacoustic calorimetry studies were carried out on
the aromatic ketones phenalenone, benzanthrone, 4-phenylbenzophenone and the …

Two-photon photosensitized production of singlet oxygen in water

PK Frederiksen, SP McIlroy, CB Nielsen… - Journal of the …, 2005 - ACS Publications
Singlet molecular oxygen (a1Δg) has been produced and optically detected in time-resolved
experiments upon nonlinear two-photon excitation of a photosensitizer dissolved in water …