[Raman spectroscopy study on the interaction of ginsenoside Rb1 with DPPC bilayers].

In the present work, the authors studied the interaction of ginsenoside Rh1 with lipid bilayers composed of DPPC using Raman spectroscopy. The conformational changes of DPPC molecule were further revealed by analyzing its vibrational modes such as the C--N stretching mode in the polar head-group region (650-850 cm(-1)), C--C stretching (1000-1200 cm(-1)), and C--H stretching (2750-3000 cm(-1)). The results indicated that there was little influence of Rb1 on the conformation of O--C--C--N+ backbone in the choline group of DPPC bilayers.