singlet

1,3-Diphenylisobenzofuran (DPBF) is a fluorescent probe. It possesses a highly specific reactivity towards singlet oxygen forming an endoperoxide which decomposes to give 1,2-dibenzoylbenzene. 1,3-Diphenylisobenzofuran can detect the generation of reactive oxygen species (ROS).

TMB(dihydrochloride x.hydrate) is the dihydrochloride salt and hydrate form of TMB. It is a non-toxic and non-mutagenic colorless dye used as a chromogenic agent in horseradish peroxidase-based assay systems. This compound also serves as a photoacoustic probe for reactive oxygen and nitrogen species (ROS RNS), reacting with hypochlorite, hydrogen peroxide, singlet oxygen, and nitrogen dioxide to produce a blue oxidized product. Additionally, TMB(dihydrochloride x.hydrate) can detect singlet oxygen produced by the outer membrane of Escherichia coli ATCC 25922.

Palladium meso-tetra(pentafluorophenyl)porphyrin (PdTFPP) is a phosphorescent dye derived from palladium(II). It serves as an effective singlet oxygen sensitizer due to its fluorine content, offering excellent photo-stability and antioxidant properties.

Thio-acridone is an atomic photosensitizer (HAF-PSs) that, when excited by visible light at 470 nm, forms a long-lived triplet state, ultimately generating singlet oxygen to disrupt the structure and function of target cells (e.g., cancer cells). Thio-acridone shows potential for use in cancer research.