Kinetics and Dynamics of Singlet Oxygen Scavenging by α-Tocopherol in Phospholipid Model Membranes
✍ Scribed by Kenji Fukuzawa; Kayo Matsuura; Akira Tokumura; Asahi Suzuki; Junji Terao
- Book ID
- 114276500
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 379 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0891-5849
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📜 SIMILAR VOLUMES
Quenching of singlet molecular oxygen (JAgO2) by a-tocopherol (I) involves the hydroxy function of the chromanol ring of I. In phosphatidylcholine (PC) uni-and multilamellar vesicles this structural element of I is localized at the interface polar headgroup/hydrophobic core. A dielectric constant of
The rate constant of quenching of singlet oxygen (kQ) by squalene (SQ) is found to be much larger than those of the lipids in human skin surface. SQ is the first target lipid in human skin surface by oxidative stresses such as sun light exposure. kQ of SQ is similar to that of 3,5-di-t-butyl-4-hydro