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Time resolve study on isopropyl-ether porphyrindiol |
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| Authors: | Lianwen?Zhang |
| Institution: | 1. Laboratory of Radiation Chemistry, Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, China;Department of Chemistry, Liaocheng University, Liaocheng 252059, China 2. Laboratory of Radiation Chemistry, Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, China 3. Department of Radiation Medical, the Second Military Medical University of Shanghai, Shanghai 200433, China |
| Abstract: | A novel fat-soluble porphyrin derivative—isopropyl-ether porphyrindiol (IPEP) has been investigated using the nanosecond laser photolysis and pulse radiolysis. In acetonitrile, IPEP-excited triplet state shows two relative absorption areas peaking at 320 and 430 nm, molar extinction coefficients by energy transfer method (in benzene solution) are proved to be ε (315) = 1.07}105, ε (450)=3.3}104 L3 · mo-1 · cm-1 and the excited triplet state quantum yield by comparative method is 0.18. Laser photolysis of IPEP in dGMP-containing solution shows that the triplet state cannot excite/oxidize dGMP via the energy/electron transfer process. |
| Keywords: | laser photolysis pulse radiolysis excited triplet state photodynamic therapy isopropyl-ether porphyrindiol |
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