| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating film for a cell culture substrate enabling cell peeling by a short-time low-temperature treatment, and enabling highly-efficient cell culture; and to provide a production method thereof.SOLUTION: A block copolymer has a structural unit expressed in formula (1), and a structural unit having a phosphate group and a tertiary amine group in a molecule. A film is obtained by applying onto a substrate, a surface preparation agent for the substrate for cell culture containing a block copolymer having the number average molecular weight of 5,000-1,000,000 and a solvent.SELECTED DRAWING: None |
