CAJ | 학술논문

应用337 nm激光光解时间分辨吸收技术,通过考察核黄素(维生素B2)激发三重态的自猝灭及与酚类抗氧化剂的抽氢反应,核黄素阴离子自由基与氧气的电子转移反应,模拟了核黄素在体内产生具有潜在光生物效应的活性粒子的途径,得到了一系列重要的动力学参数.为研究核黄素在体内的氧化还原作用,扩展它作为光敏化剂的用途提供了理论基础.
응용337 nm격광광해시간분변흡수기술,통과고찰핵황소(유생소B2)격발삼중태적자졸멸급여분류항양화제적추경반응,핵황소음리자자유기여양기적전자전이반응,모의료핵황소재체내산생구유잠재광생물효응적활성입자적도경,득도료일계렬중요적동역학삼수.위연구핵황소재체내적양화환원작용,확전타작위광민화제적용도제공료이론기출.
TUsing time-resolved techniques of 337 nm laser induce transient species ofphotobiological implications has been studied on the basis of elucidation ofbehavior of excited triplet state of riboflavin including its self-quenching,hydrogen abstraction from antioxidant of phenol, and its subsequentreaction between radical anion of riboflavin and oxygen. These transientspecies produced from laser flash photolysis have been identified, and aseries of kinetic parameters was obtained accordingly. The observed photoprocesses can account for molecular bases for investigation of theaction of riboflavin in vivo and in vitro, and to extend the riboflavinimplications as photosensitizer.