IP Library › Granted Patent US 11,427,803
Granted Patent B2
US 11,427,803 · App. 16/467,526 · Granted Aug 30, 2022

Cell culture substrate

Inventors: Hirohide Nakaguma (Sakura, JP); Ayako Isshiki (Sakura, JP)
Assignee: Fujifilm Corporation
C12N5/0068C08F293/005C12M25/14C12N2533/30
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Quick Facts
Patent No.
US 11,427,803
App. No.
16/467,526
Granted
Aug 30, 2022
Kind
B2
Abstract

The present invention is to provide a cell culture substrate including a block polymer including a segment having a lower critical solution temperature and a hydrophobic segment, in which the segment having a lower critical solution temperature has a degree of polymerization of 400 to 10,000. Also provided is a cell culture substrate, in which the hydrophobic segment is obtainable by polymerizing a monomer having a particular structure. Also provided is a cell culture substrate being laminated on a supporting medium. Furthermore, a cell culture substrate having an average film thickness of 1,000 nm or less is provided.

Claims (15)

1. A cell culture substrate comprising a block polymer comprising a segment having a lower critical solution temperature and a hydrophobic segment,

wherein the segment having a lower critical solution temperature has a degree of polymerization of 400 to 10,000.

2. The cell culture substrate according to claim 1 , wherein the hydrophobic segment is obtainable by polymerizing a monomer represented by the following Formula (1):

wherein R 1 represents a hydrogen atom or a methyl group; and R 2 represents any one of a phenyl group, a carboxyalkyl group having an alkyl with 1 to 8 carbon atoms, a carboxyaralkyl group having an aralkyl with 7 or 8 carbon atoms, a group represented by the following Formula (2), or a group represented by the following Formula (3):

wherein n represents 2 or 3; and R 3 represents an alkyl group having 1 to 3 carbon atoms,

[Chem. 3]

wherein R 4 and R 5 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; and the total number of carbon atoms of R 4 and R 5 is 5 or more.

3. The cell culture substrate according to claim 1 , which is laminated on a supporting medium.

4. The cell culture substrate according to claim 3 , which has an average film thickness of 1,000 nm or less.

5. A cell culture equipment comprising a supporting medium and the cell culture substrate according to claim 1 .

6. The cell culture substrate according to claim 2 , which is laminated on a supporting medium.

7. The cell culture substrate according to claim 6 , which has an average film thickness of 1,000 nm or less.

8. A cell culture equipment comprising a supporting medium and the cell culture substrate according to claim 2 .

9. A cell culture equipment comprising a supporting medium and the cell culture substrate according to claim 3 .

10. A cell culture equipment comprising a supporting medium and the cell culture substrate according to claim 4 .

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 28, 2022
From: DIC CORPORATION
To: FUJIFILM CORPORATION
Reel/Frame 060338/0590 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 7, 2019
From: NAKAGUMA, HIROHIDE; ISSHIKI, AYAKO
To: DIC CORPORATION
Reel/Frame 049400/0706 →
Priority Claims (1)
JP JP2016-248890 · Dec 22, 2016 · national
Continuity (1)
Related Publication 20190367870A1 · Dec 5, 2019