Bone tissue engineering scaffolding: computer-aided scaffolding techniques

Progress in Biomaterials - Tập 3 - Trang 61-102 - 2014
Boonlom Thavornyutikarn1, Nattapon Chantarapanich2, Kriskrai Sitthiseripratip3, George A. Thouas1, Qizhi Chen1
1Department of Materials Engineering, Monash University, Clayton, Australia
2Department of Mechanical Engineering, Faculty of Engineering at Si Racha, Kasetsart University, Si Racha, Thailand
3National Metal and Materials Technology Center (MTEC), Klong Luang, Thailand

Tóm tắt

Tissue engineering is essentially a technique for imitating nature. Natural tissues consist of three components: cells, signalling systems (e.g. growth factors) and extracellular matrix (ECM). The ECM forms a scaffold for its cells. Hence, the engineered tissue construct is an artificial scaffold populated with living cells and signalling molecules. A huge effort has been invested in bone tissue engineering, in which a highly porous scaffold plays a critical role in guiding bone and vascular tissue growth and regeneration in three dimensions. In the last two decades, numerous scaffolding techniques have been developed to fabricate highly interconnective, porous scaffolds for bone tissue engineering applications. This review provides an update on the progress of foaming technology of biomaterials, with a special attention being focused on computer-aided manufacturing (Andrade et al. 2002) techniques. This article starts with a brief introduction of tissue engineering (Bone tissue engineering and scaffolds) and scaffolding materials (Biomaterials used in bone tissue engineering). After a brief reviews on conventional scaffolding techniques (Conventional scaffolding techniques), a number of CAM techniques are reviewed in great detail. For each technique, the structure and mechanical integrity of fabricated scaffolds are discussed in detail. Finally, the advantaged and disadvantage of these techniques are compared (Comparison of scaffolding techniques) and summarised (Summary).

Tài liệu tham khảo

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