首页> 外文期刊>Acta biomaterialia >Structure-process-property relationship of the polar graphene oxide-mediated cellular response and stimulated growth of osteoblasts on hybrid chitosan network structure nanocomposite scaffolds.
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Structure-process-property relationship of the polar graphene oxide-mediated cellular response and stimulated growth of osteoblasts on hybrid chitosan network structure nanocomposite scaffolds.

机译:杂化壳聚糖网络结构纳米复合支架上极性石墨烯介导的细胞反应与成骨细胞刺激生长的结构-过程-性质关系。

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摘要

We here describe the structure-process-property relationship of graphene oxide-mediated proliferation and growth of osteoblasts in conjunction with the physico-chemical, mechanical, and structural properties. Chitosan-graphene network structure scaffolds were synthesized by covalent linkage of the carboxyl groups of graphene oxide with the amine groups of chitosan. The negatively charged graphene oxide in chitosan scaffolds was an important physico-chemical factor influencing cell-scaffold interactions. Furthermore, it was advantageous in enhancing the biocompatibility of the scaffolds and the degradation products of the scaffolds. The high water retention ability, hydrophilic nature, and high degree of interconnectivity of the porous structure of chitosan-graphene oxide scaffolds facilitated cell attachment and proliferation and improved the stability against enzymatic degradation. The cells infiltrated and colonized the pores of the scaffolds and established cell-cell interactions. The interconnectivity of the porous structure of the scaffolds helps the flow of medium throughout the scaffold for even cell adhesion. Moreover, the seeded cells were able to infiltrate inside the pores of chitosan-graphene oxide scaffolds, suggesting that the incorporation of polar graphene oxide in scaffolds is promising for bone tissue engineering.
机译:我们在这里描述了氧化石墨烯介导的成骨细胞增殖和生长的结构-过程-性质关系,以及其物理化学,机械和结构特性。壳聚糖-石墨烯网络结构支架是通过氧化石墨烯的羧基与壳聚糖的胺基的共价键合成的。壳聚糖支架中带负电的氧化石墨烯是影响细胞-支架相互作用的重要物理化学因素。此外,在增强支架的生物相容性和支架的降解产物方面是有利的。壳聚糖-氧化石墨烯支架的多孔结构的高保水性,亲水性和高度的互连性促进了细胞的附着和增殖,并提高了抗酶促降解的稳定性。细胞浸润并定殖在支架的孔中,并建立了细胞-细胞相互作用。支架的多孔结构的互连性有助于培养基在整个支架中流动,从而使细胞均匀粘附。此外,种子细胞能够渗透到壳聚糖-氧化石墨烯支架的孔内,这表明极性氧化石墨烯在支架中的掺入对于骨组织工程是有希望的。

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