| Abstract
| - Two kinds of functionalization of a lipid bilayer vesicle by titania were achieved by utilizing a cerasome-forminglipid, which is the starting material to prepare a cerasome, a morphologically stable lipid bilayer vesicle havingan atomic layer of siloxane networks on its surface. One system is the preparation of the titania-coated cerasomesby immobilizing nanaometer-sizes of titania onto the surface siloxane network of cerasomes. The other is thecreation of an asymmetric lipid bilayer structure on the surface of the colloidal titania particles. The characteristicsof these surface- and core-functionalized vesicles were investigated, and it was found that these conjugates showedphotocatalytic activity as evaluated by photolysis experiments of the cationic dye methylene blue.
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