期刊
BIOENGINEERING-BASEL
卷 10, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/bioengineering10020204
关键词
tissue engineering and regenerative medicine; biopolymers; nanofabrication techniques; additive manufacturing; rapid prototyping; customized therapy 3D scaffolds
In recent years, biopolymers have become a focus of research in tissue engineering and regenerative medicine due to their diverse properties, making them suitable for constructing 3D scaffolds. This review discusses the advancements in synthetic and natural polymeric 3D scaffolds for bone tissue engineering and regenerative therapies. Various fabrication methods, including solvent casting, freeze-drying, and electrospinning, are covered. The review also explores the immunomodulatory roles of polymeric scaffolds and the challenges of implementing scaffold-based treatments in practice.
Over the last few years, biopolymers have attracted great interest in tissue engineering and regenerative medicine due to the great diversity of their chemical, mechanical, and physical properties for the fabrication of 3D scaffolds. This review is devoted to recent advances in synthetic and natural polymeric 3D scaffolds for bone tissue engineering (BTE) and regenerative therapies. The review comprehensively discusses the implications of biological macromolecules, structure, and composition of polymeric scaffolds used in BTE. Various approaches to fabricating 3D BTE scaffolds are discussed, including solvent casting and particle leaching, freeze-drying, thermally induced phase separation, gas foaming, electrospinning, and sol-gel techniques. Rapid prototyping technologies such as stereolithography, fused deposition modeling, selective laser sintering, and 3D bioprinting are also covered. The immunomodulatory roles of polymeric scaffolds utilized for BTE applications are discussed. In addition, the features and challenges of 3D polymer scaffolds fabricated using advanced additive manufacturing technologies (rapid prototyping) are addressed and compared to conventional subtractive manufacturing techniques. Finally, the challenges of applying scaffold-based BTE treatments in practice are discussed in-depth.
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