Functionalization of biomimetic mineralized collagen for bone tissue engineering

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Orthopedics

Background:

• Mineralized collagen (MC) is fundamental to bone structure and extracellular matrix (ECM).
• Biomimetic methods have created MC with various nanostructures for bone defect repair.
• Extra-fibrous MC is clinically approved but limited in complex bone defect microenvironments.

Purpose of the Study:

• To review the preparation and biological performance of nanostructured MC.
• To summarize functionalization strategies for MC to enhance bone regeneration.
• To discuss recent advances and future trends in functionalized biomimetic MC.

Main Methods:

• Literature review focusing on preparation, nanostructure, and functionalization of MC.
• Analysis of biological performance, including osteogenesis, angiogenesis, anti-infection, and immunomodulation.
• Discussion of recent research on functionalized biomimetic MC and its applications.

Main Results:

• Functionalization of MC is crucial for overcoming limitations in complex bone defect microenvironments.
• Strategies enhance osteogenesis, angiogenesis, anti-infection, and immunomodulation.
• Functionalized biomimetic MC shows promise for advanced bone tissue engineering.

Conclusions:

• Functionalized biomimetic MC offers a promising approach for bone defect repair.
• Advanced design philosophies are needed for MC in diverse bone microenvironments.
• Further research is required to address development challenges and future trends.