| abstract |
A container for forming a cell aggregate is provided in which a group represented by a general formula of: n n n n n n n n n n (in the formula, each of R 1 , R 2 , and R 3 is independently a an alkyl group with a carbon number of 1 or more and 6 or less and m is an integer of 2 or more and 6 or less.) and at least one of an amino group, a carboxyl group, and a hydroxyl group are present near a surface thereof. |