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  • Title: Biomimetic and cell-mediated mineralization of hydroxyapatite by carrageenan functionalized graphene oxide.
    Author: Liu H, Cheng J, Chen F, Hou F, Bai D, Xi P, Zeng Z.
    Journal: ACS Appl Mater Interfaces; 2014 Mar 12; 6(5):3132-40. PubMed ID: 24527702.
    Abstract:
    In bone tissue engineering, it is imperative to design multifunctional biomaterials that can induce and assemble bonelike apatite that is close to natural bone. In this study, graphene oxide (GO) was functionalized by carrageenan. The resulting GO-carrageenan (GO-Car) composite was further used as a substrate for biomimetic and cell-mediated mineralization of hydroxyapatite (HA). It was confirmed that carrageenan on the GO surface facilitated the nucleation of HA. The observation of the effect of the GO-Car on the adhesion, morphology, and proliferation of MC3T3-E1 cells was investigated. In vitro studies clearly show the effectiveness of GO-Car in promoting HA mineralization and cell differentiation. The results of this study suggested that the GO-Car hybrid will be a promising material for bone regeneration and implantation.
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