Oxygen photosensitization

Wang S, Gao R, Zhou F, Selke M (2004) Nanomaterials and singlet oxygen photosensitizers potential applications in photo dynamic therapy. J Mater Chem 14 487-493... 

Sortino et al. reported the use of light irradiation on SAMs supporting the anticancer drug flutamide to study its photoreactivity and product release of nitric oxide. The authors were able to conduct studies in the absence of noxious side effects such as singlet-oxygen photosensitization and observed that nitric oxide production halted when the light was turned off [103], Another photoactive molecule, azobenzene, has recently been exploited in the SAM community to aid in studies on cell adhesion and enzyme inhibition [104], Pearson and coworkers described the use of photoisomerizable SAMs of azobenzene to conduct a series of serine and cysteine protease inhibition experiments. When light of 340-380 nm is used, the... 

Capable of acting as an efficient singlet oxygen photosensitizer when irradiated with... 

In contrast to this formation of polymeric peroxides from olefins and oxygen, photosensitized autoxidation of dienes leads to cyclic monomeric... 

Wasserman, H.H. Stiller, K. Floyd, M.B. The reactions of heterocyclic systems with singlet oxygen. Photosensitized oxygenation of imidazoles. Tetrahedron Lett. 1968, 3277—3280. 

Functionalization of nanoparticles with porphyrins and analogous macrocycles opened the way to important applications, such as, to name only a few gelators [8], phototherapy of cancer [9], degradation of organic pollutants by singlet oxygen photosensitization [10], and photoexcited electron transfer [11]. The interest in porphyrin-based nanoreactors lies in the possibility of using a variety of metals that can enter in catalytic processes [12]. 

Murtinho, D., Pineiro, M., Pereira, M. et al. (2000). Novel Porphyrins and a Chlorine as Efficient Singlet Oxygen Photosensitizers for Photooxidation of Naphthols or Phenols to Quinones, J. Chem. Soc. Perkin Trans., 2, pp. 2441-2447 Sorokin, A. and Tuel, A. (1999). Heterogeneous Oxidation of Aromatic Compounds Catalyzed by Metallophthalocya-nine Functionalized Silicas, New J. Chem., 23, pp. 473-476 Sorokin, A., Mangematin, S. and Pergrale, C. (2002). Selective Oxidation of Aromatic Compounds with Dioxygen and Peroxides Catalyzed by Phthalocyanine Supported Catalysts, J. Mol. Catal. A Chem., 182-183, pp. 267-281. 

Nonell, S. and Redmond, R.W., On the determination of quantum yields for singlet molecular oxygen photosensitization,/. P/zotoc/jem. Photobiol, B Biol, 22, 171, 1994. 

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