Low-temperature deposition manufacturing technology: a novel 3D printing method for bone scaffolds

Area of Science:

• Biomaterials Engineering
• Regenerative Medicine
• 3D Printing Technology

Background:

• Three-dimensional printing (3D printing) shows significant potential in personalized and biological bone defect repair.
• Low-temperature deposition manufacturing (LDM) is an eco-friendly rapid prototyping method suitable for fabricating scaffolds in bone tissue engineering.
• LDM-fabricated scaffolds offer controllable multi-scale pore structures and interconnected micropores, crucial for bone defect repair.

Purpose of the Study:

• To introduce Low-temperature Deposition Manufacturing (LDM) technology.
• To summarize the applications of LDM in bone tissue engineering.
• To categorize and discuss the performance and limitations of LDM-fabricated scaffolds based on skeleton materials.

Main Methods:

• Review of Low-temperature Deposition Manufacturing (LDM) technology.
• Categorization of LDM scaffolds based on skeleton materials.
• Discussion of scaffold performance and limitations.

Main Results:

• LDM enables the fabrication of scaffolds with controllable pore structures beneficial for bone defect repair.
• LDM facilitates the integration of cells or bioactive factors into 3D scaffolds.
• Scaffolds were categorized into four types based on skeleton materials, with their properties and limitations discussed.

Conclusions:

• LDM is a promising technology for creating advanced scaffolds for bone tissue engineering.
• The review provides insights into the development and application of LDM scaffolds for bone defect repair.
• Further development and application of LDM scaffolds hold significant prospects in regenerative medicine.