 This study investigates the use of phototriggered crosslinking to create heterogeneous hydrogels composed of a resulin-like polypeptide, RLP, and polyethylene glycol, PEG. The resulting hydrogels have a range of microstructures and mechanical properties, which can be independently controlled through the degree of accrelation of the RLP. This allows for precise control of the mechanical properties of the material at the microscopic level. Additionally, the local mechanical properties of the two phases of the gel change over time, while the bulk modulus remains constant. This suggests that the technique could be used to generate mechanically robust materials for a range of applications, including regenerative medicine. This article was authored by Hang Kun Lao, Alexander Paul, Ish Nor Sidhu, and others.