Porous hydroxyapatite scaffolds containing dual microspheres based on poly(lactide-co-glycolide) and chitosan for bone regeneration

作者: Qin Wang , Jinyu Li , Taotao Xu , Xiaoying Lu , Wei Zhi

DOI: 10.1016/J.MATLET.2016.11.098

关键词: ChitosanComposite materialDrug deliveryMaterials scienceScaffoldCoatingChemical engineeringBone regenerationEmulsionPLGABone tissueMechanical engineeringGeneral Materials ScienceMechanics of MaterialsCondensed matter physics

摘要: Abstract The strategy of incorporating both scaffold and drug delivery systems to promote tissue growth, has attracted increasing attention in the field bone engineering. aim this study was incorporate dual microspheres with different diameters, based on chitosan (CS) poly(lactide-co-glycolide) (PLGA), onto porous surface hydroxyapatite scaffolds (HAs). were prepared by sphere-leaching method emulsion technique, respectively. Through electrostatic interactions, CS PLGA successfully immobilized alginate-precoated HAs. homogeneously solidly HAs, whereas attached microspheres. Additionally, compressive strength obviously improved alginate coating. Such HAs combined two types build a system would be promising suitable vehicle for repair defects.

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