Lifetime of singlet oxygen (τΔ)

Value 45 µsec Range: ±18 µsec
Organism Mammalian tissue culture cell
Reference Skovsen E, Snyder JW, Lambert JD, Ogilby PR. Lifetime and diffusion of singlet oxygen in a cell. J Phys Chem B. 2005 May 12 109(18):8570-3. p.8571 right column top paragraphPubMed ID16852012
Method A given cell was irradiated using a femtosecond pulsed laser that was focused into the sample through the microscope objective. Researchers were able to record a time-resolved a?X phosphorescence signal upon irradiation of TMPyP in the nucleus of a single cell incubated with D2O (Figure 3)
Comments Nuclei of neurons from the hippocampus of Wistar rats were irradiated. Sensitizer is TMPyP=5,10,15,20-tetrakis(N-methyl-4-pyridyl)-21H, 23Hporphine
Entered by Uri M
ID 105994