Biological inactivation by singlet oxygen: distinguishing O2(1 delta g) and O2(1 sigma g+)
Biological inactivation by singlet oxygen: distinguishing O2(1 delta g) and O2(1 sigma g+)
复制标题
单线态氧的生物灭活：区分 O2(1 delta g) 和 O2(1 sigma g)
DOI：
10.1016/0304-4165(92)90082-6
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Dahl,TA
中科院分区：
文献类型：
--
作者：
Midden,WR;Dahl,TA
Experiments were performed to determine whether bacterial inactivation in the separated-surface-sensitizer system for singlet oxygen generation is due to O2(1Δg) or O2(1Σg+). The rates of inactivation of Gram-negativeSalmonella typhimuriumLT-2 and a nonpigmented strain of Gram-positiveSarcina luteawere found linearly with the concentration of1Δg. The gas phase lifetime of the inactivating agent was found to be within the range of values expected for the gas phase lifetime of1Δgrather than1Σg+. These measurements conclusively demonstrate that bacterial inactivation in this system is due predominantly to1Δg. Therefore, studies of bacterial inactivation with this singlet oxygen generating system can be used to assess the role of singlet oxygen in various biological and medically relevant situations.
