Krakover T, Ilani A, Mauzerall D
Biophys J. 1981 Jul;35(1):93-7. doi: 10.1016/S0006-3495(81)84776-5.
Neutral quinones rapidly equilibrate across the lipid bilayer, hereby rendering the photoeffects seen in pigmented bilayers sensitive to the redox properties at both interfaces. The lack of photoeffect by quinones themselves and their apparent quenching reactions with aqueous acceptors is thus explained. An aqueous donor is needed on one side to break the symmetry and to allow vectorial electron transfer to be recorded. It is concluded that the neutral quinone accumulates on the polar side of the interface with respect to the hydrophobic pigment. The system may allow the study of kinetics of proton transfer accompanying the redox reactions of the quinones.
中性醌能迅速在脂质双分子层间达到平衡，从而使色素双分子层中观察到的光效应取决于两个界面处的氧化还原特性。由此解释了醌本身缺乏光效应以及它们与水性受体明显的猝灭反应。一侧需要有一个水性供体来打破对称性，并记录矢量电子转移。得出的结论是，相对于疏水性色素，中性醌在界面的极性侧积累。该系统可能有助于研究醌氧化还原反应伴随的质子转移动力学。
