Bioactive Glass and Glass-Ceramic Scaffolds for Bone Tissue Engineering

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Bioceramics

Background:

• Bioactive glasses, traditionally used for bone defect repair, are now pivotal in bone tissue engineering.
• This review focuses on melt-derived bioactive silicate glass compositions and composite structures for scaffolds.

Purpose of the Study:

• To review current knowledge on porous bioactive glass scaffolds for bone tissue engineering.
• To discuss fabrication methods, microstructural-mechanical properties, and structure-function relationships.
• To address ion release effects on osteogenic and angiogenic responses and highlight future research areas.

Main Methods:

• Literature review and synthesis of existing research on bioactive glass scaffolds.
• Analysis of fabrication techniques for creating porous scaffolds.
• Evaluation of structure-property and structure-function relationships in relation to human bone.

Main Results:

• Bioactive glasses offer promising platforms for developing advanced bone tissue engineering scaffolds.
• Understanding the relationship between scaffold microstructure, mechanical properties, and biological performance is crucial.
• Ion release from bioactive glasses significantly influences cellular responses, including osteogenesis and angiogenesis.

Conclusions:

• Porous bioactive glass and glass-ceramic scaffolds represent a significant advancement in bone tissue engineering.
• Further research is needed to optimize scaffold design for enhanced bone regeneration and clinical translation.
• Bioactive glasses hold great potential for developing next-generation bone regenerative therapies.