A Mechanical-Assisted Post-Bioprinting Strategy for Challenging Bone Defects Repair
April 2024
in “
Nature Communications
”
Studysummary This study demonstrated that a mechanical-assisted post-bioprinting strategy significantly increased cell numbers and enhanced regenerative capabilities in hollow hydrogel-based scaffolds for bone defect repair in vivo.
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The study introduces a mechanical-assisted post-bioprinting strategy using heart-inspired hollow hydrogel-based scaffolds (HHSs) to improve cell loading for tissue regeneration. This method addresses the challenges of cell damage and poor mechanical stability in bioprinted scaffolds. HHSs enable 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 approach demonstrates enhanced regenerative capability in repairing critical-sized segmental and osteoporotic bone defects in vivo, suggesting a promising advancement for cell-based regenerative therapy.
