Fig. 1

Schema of cell transfer technology. a Procedure of cell transfer technology from construction of the transfer substrate to cell transfer. TEG/PEG layer (yellow) is formed on glass substrate. Following pattern drawing (photomask: red), UV light is radiated on the substrate. The surface exposed to UV light becomes cell adhesive area (green). Several hours of incubation after cell seeding on the substrate, the cells are transferred onto scaffold (pink) by making direct contact of the substrate to scaffold. After 18 to 20 h, cells are transferred onto scaffold. b Oseoblasts transferred using cell transfer substrate with grid patterning. Bar = 100 μm