| abstract |
Provided is a culture material that is superior in shape stability and can achieve a suitable oxygen environment for culture of liver cells.A culture material including a 4-methyl-1-pentene polymer (X) for cells, tissues, or organs, the culture material having a water contact angle at a culture surface of 50° to 100°, a sagging distance by a test method (A) described below of 0 to 5 mm, and an oxygen permeation rate at a temperature of 23°C and a humidity of 0% of 4500 to 90000 cm<sup>3</sup>/ (m<sup>2</sup> × 24h × atm) .Test method (A): A test piece having the same material as the culture material and the same thickness as the culture surface of the culture material and having a flat plate shape of 100 mm long and 10 mm wide is made. The test piece is fixed onto a test board in a state where the test piece protrudes lengthwise a length of 50 mm in a horizontal direction from a top surface of the test board, the top surface being horizontal. Three minutes after fixing, a measurement is performed of a distance of how much an end of the test piece protruding from the test board sags in a vertically downward direction from a horizontal plane including the top surface of the test board. With the proviso that the process from the fixing to the measurement is performed at room temperature. |