| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a porous film for effectively culturing cells or screening cell culture. <P>SOLUTION: The porous film 10 the pores 12 of which are used for a cell culture base as a scaffold for a spheroid, has a plurality of pores 12 whose diameters gradually increase in a direction A. That is, the pores 12 are formed in such a manner that the diameters of the pores 12 gradually increase from a first area P1 to a third area P3 in this order located on the porous film 10 along the direction A. The diameters of the pores 12 increase in proportion to the distance in the direction A. The depths of the pores 12 also increase in proportion to the distance in the direction A. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
