A series of systematically deplanarized pushâpull oligothiophenes is designed and synthesized to determine the perfect twist for maximal spectroscopic response to their planarization within lipid bilayer membranes. Weak deplanarization naturally gives weak shifts, but strong deplanarization also gives weak shifts because planarization becomes impossible. Intermediate deplanarization turns out to be ideal. The shifts found in response to chromophore planarization are not as dramatic as with lobsters during cooking but sufficient to discriminate solid-ordered and liquid-disordered membranes with the naked eye.
设计并合成了一系列系统性去平面化的推拉型寡聚
噻吩,以确定在脂质双层膜内最大光谱响应的理想扭曲角。弱去平面化自然会导致弱位移,但强去平面化也会导致弱位移,因为平面化变得不可能。中等去平面化被证明是理想的。对
染料平面化的响应所产生的位移并不像烹饪龙虾时那样戏剧性,但足以用肉眼区分固态有序和液态无序膜。