Material and method for producing cell receiving scaffold
A printable composition for the manufacture of cell-receiving scaffolds comprising about 0.3 wt % to about 3.0 wt % of one or more collagens; about 5.0 wt % to about 40.0 wt % of one or more monomers; about 0.5 wt % to about 2.0 wt % of a photo initiator; and 0 wt % to about 75 wt % of a vehicle comprising a protic solvent, by weight of the printable composition; wherein the printable composition has a resolution of about 100 microns or less when printed, a photo speed (Dp/Ec) of about 0.1-5 mm (Dp) and about 10-100 mJ/cm 2 (Ec) when printed, and a green strength of at least about 5 kPa after drying. The present technology further includes methods of manufacturing a three-dimensional cell-receiving scaffold using the printable composition.
1. A method of manufacturing a three-dimensional cell-receiving scaffold comprising:
depositing a layer of a printable composition to a surface to obtain a deposited layer;
irradiating the deposited layer;
repeating the depositing and irradiating steps until the deposited layers form the three-dimensional cell-receiving scaffold; and
contacting the three-dimensional cell-receiving scaffold with an acidic solution that hydrolyzes ester linkages in the printable composition to lower a green strength of the three-dimensional cell-receiving scaffold;
wherein the printable composition comprises collagen, wherein the collagen is present in an amount from about 0.3 percent to about 3.0 percent by weight of the printable composition; a monomer; a photo initiator; and a vehicle.
2. The method according to claim 1 , wherein the printable composition is a printable composition for manufacturing cell-receiving scaffolds comprising:
about 5.0 wt % to about 40.0 wt % of the monomer;
about 0.5 wt % to about 2.0 wt % of the photo initiator; and
0.1 wt % to about 75 wt % of the vehicle comprising a protic solvent, by weight of the printable composition;
wherein the printable composition has a resolution of about 100 microns or less when printed, a photo speed (Dp/Ec) of about 0.1-5 mm (Dp) and about 10-100 mJ/cm 2 (Ec) when printed, and the green strength of at least about 5 kPa after drying.
3. The method according to claim 1 wherein the method further comprises heating the printable composition to a temperature of 0° C. to about 30° C. prior depositing.
4. The method according to claim 1 , wherein the method further comprises contacting the three-dimensional cell-receiving scaffold with cells, tissues, growth factors, laminin, elastin, fibronectin, proteoglycans, hyaluronic acid, polysaccharides, or a mixture of two or more thereof.