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首页> 外文期刊>Journal of Applied Polymer Science >Crosslinking of electrospun fibrous gelatin scaffolds for apatite mineralization
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Crosslinking of electrospun fibrous gelatin scaffolds for apatite mineralization

机译：电纺纤维明胶支架的交联以磷灰石矿化

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摘要

Fibrous gelatin scaffolds fabricated via electrospinning followed by crosslinking were used as substrates for apatite mineralization. Gelatin macromolecules were confined by their fibers and further restricted by the crosslinked structure while proper flexibility could be attained upon hydration. After 4 or 5 days of mineralization, partially carbonated hydroxyapatite was proved to deposit uniformly on the surface of the fibers. The property of the substrate, such as stiffness of the scaffolds and flexibility of macromolecules chain, was changed by different crosslinking ways. The influences of these properties on the formation of apatite were also investigated. Results showed that a relatively less rigid interface and more flexible chain acquired by glutaraldehyde solution crosslinking seemed to favor the nucleation of minerals and to reduce the size of the inorganic products.
机译：通过电纺丝然后交联制备的纤维状明胶支架被用作磷灰石矿化的基质。明胶大分子受其纤维限制，并进一步受到交联结构的限制，而水合后可获得适当的柔韧性。矿化4或5天后，已证明部分碳酸化的羟基磷灰石均匀沉积在纤维表面。通过不同的交联方式改变了底物的性质，例如支架的刚度和大分子链的柔性。还研究了这些性质对磷灰石形成的影响。结果表明，戊二醛溶液交联获得的刚性相对较低的界面和较柔韧的链似乎有利于矿物质的成核并减小无机产物的尺寸。

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