Hyaluronic acid methacryloyl (HAMA) is a double-bond modified hyaluronic acid that can be crosslinked to form a hydrogel by UV and visible light with the addition of photoinitiators.HAMA hydrogels have excellent biocompatibility and adjustable mechanical properties, and are widely used in biomedical fields such as tissue engineering, 3D printing, and drug delivery.

Collagen methacryloyl (COMA) is a double-bond modified collagen that can be crosslinked to form hydrogels by ultraviolet and visible light with the addition of photoinitiators.COMA hydrogels have excellent biocompatibility and adjustable mechanical properties, and are widely used in biomedical fields such as tissue engineering, 3D printing, and drug delivery.

Gelatin methacryloyl (GelMA) is a double-bond modified gelatin that can be crosslinked to form hydrogels by ultraviolet and visible light with the addition of photoinitiators.GelMA hydrogels have excellent biocompatibility and adjustable mechanical properties, and are widely used in biomedical fields such as tissue engineering, 3D printing, and drug delivery.