| 摘要 |
PURPOSE:To optically control the solubility of a polyamino acid in a bimolecular film by introducing a photosensitive group into the side chain of the polyamino acid, and utilizing a change in the polarity due to the resulting photoisomeriza tion reaction. CONSTITUTION:The solubility of a membrane protein substance in a lipid bimolecular film is controlled by changing the bipolarity with the photoisome rization reaction of the polyamino acid wherein azobenzene as the photosensitive group is introduced into the side chain. In addition, a polyamino acid wherein a photosensitive group, the hydrophilic head group of a lipid bimolecular film forming substance, and an oppositely chargeable functional group are introduced into the side chain is used to change the bipolarity with the photoisomerization reaction of the photosensitive group, and the solubility of the polyamino acid in the lipid bimolecular film is changed. The interionic action between the functional group of the polyamino acid and the hydrophilic head group of the lipid bimolecular film is controlled, and the vehicular structure is controlled in an aggregated and dispersed state. |
