摘要
本文合成了磺化酞菁、磺化酞菁镓和磺化酞菁铝,研究了它们光敏氧化胆固醇及L-半胱氨酸的反应。染料的聚集态和溶液的pH值对反应速率有不同程度的影响。D_2O加速反应而NaN_3猝灭反应的结果表明,光敏氧化反应主要通过Ⅱ型(涉及~1O_2)机制进行。
Phthalocyanine sulfonates (H2SPC). chlorogallium phthalocyanine (CaClSPC) and chlor-oaluminum phthalocyanine (A1C1SPC) have been synthesized and their sensitized photooxid-ation of cholesterol and L-cysteine have been studied. Both aggregation of dyes and pH value of the solution affect the reaction rate. The results of enhancement of photooxidation rate observed when D2O was used as the solvent and the quenching effect of NaN2 indicate that sensitized photooxidation proceeds mainly via Type Ⅱ mechanism (involving singlet oxygen 2O2).
出处
《感光科学与光化学》
CSCD
1991年第1期36-43,共8页
Photographic Science and Photochemistry
基金
国家自然科学基金
关键词
磺化酞菁系
染料
光敏氧化
胆固醇
Phthalocyanine, sensitized photooxidization, cholesterol, L-cysteine, photo-dynamic therapy
