Advanced 3D bioink featuring damping and antioxidant for micro-nano fabrication.

ABSTRACT: Undesirable mechanical vibrations and shocks, particularly during 3D print process and post-processing biological applications involving musculoskeletal systems, pose critical challenges to structural fidelity and material performance, demanding the bioink capable of impact protection capacity. Here, we develop a damping elastomeric printing bioinks by grafted with glycidyl methacrylate (DEPGM) via a novel multiscale noncovalent-covalent orchestrate mechanical responses strategy. Specifically, results exhibited that molecular level group grafting elevates secondary β-sheet content (up to 150 %) with reduced protein packing density achieves exceptional compressive strength (1.1 MPa), storage modulus (0.26 MPa) and damping capacity (tan δ = 0.072), rivaling natural rubbers (e.g., main

SUBMITTER: Chen T 

PROVIDER: S-EPMC12686636 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature