Dextran Methacryloyl (MW 200000) is a methacrylated glucan that can transform into a cell matrix gel. The gel formed from Dextran Methacryloyl (MW 200000) shows no cytotoxicity towards fibroblasts, although cells exhibit only limited adhesion in prolonged experiments. In the presence of the photoinitiator LAP, it self-assembles into a fibrous hydrogel that targets bioactive adhesion sites, providing inherent support and biodegradability for tissue cells. It is applicable in areas such as cell culture, bio 3D printing, and tissue engineering.