Thin-layer hydroxyapatite deposition on a nanofiber surface stimulates mesenchymal stem cell proliferation and their differentiation into osteoblasts.

Journal of Biomedicine and Biotechnology Pub Date : 2012-01-01 Epub Date: 2012-01-29 DOI:10.1155/2012/428503
Eva Prosecká, Matej Buzgo, Michala Rampichová, Tomáš Kocourek, Petra Kochová, Lucie Vysloužilová, Daniel Tvrdík, Miroslav Jelínek, David Lukáš, Evžen Amler
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引用次数: 38

Abstract

Pulsed laser deposition was proved as a suitable method for hydroxyapatite (HA) coating of coaxial poly-ɛ-caprolactone/polyvinylalcohol (PCL/PVA) nanofibers. The fibrous morphology of PCL/PVA nanofibers was preserved, if the nanofiber scaffold was coated with thin layers of HA (200 nm and 400 nm). Increasing thickness of HA, however, resulted in a gradual loss of fibrous character. In addition, biomechanical properties were improved after HA deposition on PCL/PVA nanofibers as the value of Young's moduli of elasticity significantly increased. Clearly, thin-layer hydroxyapatite deposition on a nanofiber surface stimulated mesenchymal stem cell viability and their differentiation into osteoblasts. The optimal depth of HA was 800 nm.

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纳米纤维表面的薄层羟基磷灰石沉积刺激间充质干细胞增殖并向成骨细胞分化。
脉冲激光沉积是制备羟基磷灰石(HA)同轴聚己内酯/聚乙烯醇(PCL/PVA)纳米纤维的理想方法。如果在纳米纤维支架表面涂覆薄层透明质酸(200 nm和400 nm),则可以保留PCL/PVA纳米纤维的纤维形态。然而,HA厚度的增加导致纤维性质的逐渐丧失。此外,HA沉积在PCL/PVA纳米纤维上后,其生物力学性能得到改善,杨氏弹性模量显著增加。显然,纳米纤维表面的薄层羟基磷灰石沉积刺激了间充质干细胞的活力和向成骨细胞的分化。HA的最佳深度为800 nm。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Biomedicine and Biotechnology
Journal of Biomedicine and Biotechnology 生物-生物工程与应用微生物
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