A Mechanical-Assisted Post-Bioprinting Strategy for Challenging Bone Defects Repair
September 2023
in “
Research Square (Research Square)
”
TLDR The new method improves bone repair by enhancing cell loading and stability in bioprinted scaffolds.
The study introduces a mechanical-assisted post-bioprinting strategy using heart-inspired hollow hydrogel-based scaffolds (HHSs) to improve cell loading in bioprinting for tissue regeneration. This method addresses issues of cell damage and poor mechanical stability in bioprinted scaffolds by enabling rapid, uniform, and precise cell loading within 4 seconds, achieving a 13-fold increase in cell number and allowing partitioned loading of two cell types. The HHSs demonstrated enhanced regenerative capabilities in repairing critical-sized segmental and osteoporotic bone defects in vivo, suggesting this strategy as a promising approach for advancing cell-based regenerative therapies.