甲基橙在囊泡双分子膜表面吸附的共振拉曼光谱

Raman Spectra of Methyl Orange Adsorbed on Vesicle Bilayer Surface

甲基橙在囊泡双分子膜表面吸附的共振拉曼光谱吴立新１，２徐尉青１魏君华１李国文１（１吉林大学超分子结构与谱学开放实验室长春１３００２３２中科院长春物理研究所）ＲａｍａｎＳｐｅｃｔｒａｏｆＭｅｔｈｙｌＯｒａｎｇｅＡｄｓｏｒｂｅｄｏｎＶｅｓｉｃｌｅＢｉｌａ...

Abstract Raman vibration bands of Methyl Orange (MO), an amphiphile with a Schiff base group, in the adsorbed state in bilayer aggregate were assigned. Raman features of the membrane depend on the structure of the aggregate, but are too weak to be seen in the mixture system. The vibration bands of MO in adsorptioninduced aggregate state differ from those of individual MO molecule, and are confirmed through the resonance enhancement and the effect of increasing the temperature. The spectral differences are used to analyze the adsorption and aggregation dependence of MO on bilayer surface.