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Open Access Defect-related luminescent microstructured hydroxyapatite promote bone regeneration through nucleating effect

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Non-nano scaled hydroxyapatite (HAP) particles cannot enter the cells, but they are also wildly used in tissue engineering for their excellent bone regeneration. We synthesized a defect-related luminescent micro-scale hydroxyapatite particles (S3) and investigated the effect of S3 during bone regeneration. S3 promoted the formation of mineralized nodules and collagen synthesis of osteoblasts (OBs). Micro-scaled S3 couldn't enter into OBs and couldn't change the Ca2+ concentration of the medium. During the cell differentiation, the location of S3 was tracked by its defect-related luminescence in vitro. Extracellular S3 particles become the nucleation events which promote bone regeneration. The results suggest that micro-scale HAP promoted bone regeneration through extracellular pathways. This result also can explain the reason why hydroxyapatite covered tissue scaffold is more suitable for bone reconstructing.

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Keywords: DEFECT-RELATED LUMINESCENT; HYDROXYAPATITE; NUCLEATING; OSTEOBLASTS

Document Type: Research Article

Publication date: July 1, 2020

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  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
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