Hyaluronic acid Methacryloyl (HAMA) is methacrylated hyaluronic acid that is biocompatible. Hyaluronic acid Methacryloyl is also used as a 3D printing hydrogel ink, which has the characteristics of fast photosensitive response, fast gelation speed and stable hydrogel performance. Hyaluronic acid Methacryloyl can quickly induce gelation with lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) under UV irradiation. The combination of Hyaluronic acid Methacryloyl and tissue-specific extracellular matrix (ECM) materials (such as pancreatic extracellular matrix (pECM)) will become an important source material for organoid culture^[1][2].