| abstract |
(57) [Summary] [Structure] An immobilization device 3 comprising a support 1 and a layer 2 of a polymer compound disposed on the support. The polymer compound is formed by combining a plurality of blocks having a cloud point and a hydrophilic block, the aqueous solution thereof has a sol-gel transition temperature, and the aqueous solution is reversible at a temperature lower than the sol-gel transition temperature. A liquid state (sol state) is shown. [Effect] In the whole or part of a series of operations such as immobilization, culturing, recovery or passage of cells, microorganisms, etc. on a culture substrate, the complexity of the conventional method using an agar gel or pipette, and cells , The problem of damage to microorganisms is solved. |