Method for manufacturing a cell culturing article
The disclosure provides a cell culturing article. The cell culturing article includes a substrate having a surface, a hydrophilic copolymer layer positioned on the surface of the substrate, and a plurality of peptide chains individually conjugated to a surface of the hydrophilic copolymer layer. The hydrophilic copolymer layer is copolymerized by a plurality of polyvinyl alcohol units, a plurality of polyvinyl alcohol derivative units, and a plurality of units containing at least one carboxyl group. A method for manufacturing the cell culturing article, a method for culturing undifferentiated stem cells and a method for regulating stem cell differentiation are also provided herein.
1. A method for manufacturing a cell culturing article, comprising:
providing a base layer having a surface;
forming a hydrophilic copolymer layer on the base layer, wherein the hydrophilic copolymer layer comprises a plurality of polyvinyl alcohol units, a plurality of polyvinyl alcohol derivative units and a plurality of itaconic acid units, the itaconic acid units comprise a plurality of carboxyl groups;
performing a cross linking reaction, so that the polyvinyl alcohol units of the hydrophilic copolymer layer are cross-linked with each other; and
conjugating a plurality of peptide chains individually on a surface of the cross-linked hydrophilic copolymer layer, and at least one amino group of each of the peptide chains reacting with one of the carboxyl groups of the itaconic acid units to form an amide bond.
2. The manufacturing method of claim 1 , wherein the step of forming a hydrophilic copolymer layer on the base layer comprises:
preparing a hydrophilic copolymer solution comprising a copolymer having the polyvinyl alcohol units, the alcohol derivative units and the itaconic acid units; and
coating the hydrophilic copolymer solution onto the surface of the base layer to form the hydrophilic copolymer layer.
3. The manufacturing method of claim 2 , wherein a concentration of the copolymer in the hydrophilic copolymer solution is about 0.05-0.2 wt %.
4. The manufacturing method of claim 1 , wherein the polyvinyl alcohol derivative units comprise polyvinyl acetate, polyvinyl methyl ether or polyvinyl ethyl ether.
5. The manufacturing method of claim 1 , wherein the cross linking reaction is performed by utilizing glutaraldehyde to cross link the polyvinyl alcohol units of the hydrophilic copolymer layer in a sulfuric acid aqueous solution.
6. The manufacturing method of claim 1 , wherein the step of performing the cross linking reaction further comprises:
controlling a cross linking reaction time to regulate an elastic coefficient of the hydrophilic copolymer layer.
7. The manufacturing method of claim 6 , wherein the cross linking reaction time is in a range of 0.5 h to 48 h.
8. The manufacturing method of claim 6 , wherein the elastic coefficient is in a range of 1 kPa to 100 kPa.