An example of a bottlebrush polymer has a polymer backbone and a plurality of individual brush moieties bonded to the polymer backbone. The individual brush moieties respectively include a crosslinked oxyamine moiety, a hydrophilic segment, and a surface adhesive terminal group.

An example of a bottlebrush polymer has a polymer backbone and a plurality of individual brush moieties bonded to the polymer backbone. The individual brush moieties respectively include a crosslinked oxyamine moiety, a hydrophilic segment, and a surface adhesive terminal group.

A bioink formulation for digital light processing bioprinting comprising a mixture of a biocompatible cleavable polymer precursor, a biocompatible non-cleavable polymer precursor, and a photoinitiator is described. Three-dimensional (3D) objects prepared using these bioink formulations are also described. In addition, a method of 3D bioprinting is described. The method includes providing a bioink formulation in a 3D bioprinter vat; repeatedly photoactivating the biocompatible photoactive polymer precursors in the 3D bioprinter vat on a build plate immersed in the vat to form a 3D bioprinted object comprising polymers having a series of predefined shapes across the vertical direction based on a set of sliced images; and treating the 3D bioprinted object with an agent that cleaves chemical bonds within the cleavable polymer.

A bioink formulation for digital light processing bioprinting comprising a mixture of a biocompatible cleavable polymer precursor, a biocompatible non-cleavable polymer precursor, and a photoinitiator is described. Three-dimensional (3D) objects prepared using these bioink formulations are also described. In addition, a method of 3D bioprinting is described. The method includes providing a bioink formulation in a 3D bioprinter vat; repeatedly photoactivating the biocompatible photoactive polymer precursors in the 3D bioprinter vat on a build plate immersed in the vat to form a 3D bioprinted object comprising polymers having a series of predefined shapes across the vertical direction based on a set of sliced images; and treating the 3D bioprinted object with an agent that cleaves chemical bonds within the cleavable polymer.