PHOTOREACTIONS OF MELANIN - NEW TRANSIENT SPECIES AND EVIDENCE FOR TRIPLET-STATE INVOLVEMENT
PHOTOREACTIONS OF MELANIN - NEW TRANSIENT SPECIES AND EVIDENCE FOR TRIPLET-STATE INVOLVEMENT
复制标题
DOI：
10.1016/0006-291x(79)92070-9
复制
发表时间：
1979-01-01
影响因子：
3.1
通讯作者：
SEALY, RC
中科院分区：
文献类型：
--
作者：
FELIX, CC;HYDE, JS;SEALY, RC
本文报道了在光照射的天然[牛眼]和合成黑色素中检测到的一种新的瞬时物种。该物种在常温和低温下都迅速衰变，并具有ESR谱，其时间分布显示了三重态参与的自旋极化效应(化学诱导的动态电子极化)的特征。提出了黑色素吸收和降解光的可能机制。
The detection of a new transient species in photoirradiated natural [bovine eye] and synthetic melanins is reported. This species decays rapidly at both ambient and cryogenic temperatures and has an ESR spectrum whose time-profile reveals spin polarization effects (chemically induced dynamic electron polarization) characteristic of triplet state involvement. A possible mechanism for light absorption and degradation by melanins is suggested.