Green Fluorescent Gelatin Methacryloyl (Green Fluorescent GelMA) is a gelatin methacryloyl compound infused with green fluorescent molecules. This modification allows Green Fluorescent GelMA to function as a scaffold, facilitating the design of tissue models ranging from vascular systems to cartilage and bone, and promoting cell proliferation and dispersion. With 30% methacrylation and Green Fluorescent properties, it requires photo-initiator LAP to self-assemble into fibrous hydrogels, targeting bioactive adhesive sites to provide structural support and enable biodegradation. Its applications include cell culture, bio 3D printing, tissue engineering, among others.