Abstract: Silk fibroin is a natural biopolymer with strong potential for biomedical applications due to its extraordinary characteristics including elasticity, flexibility, biocompatibility and biodegradability. However, the low osteogenic capacity and mechanical property deficiency have limited applications for silk fibroin in the orthopedic area. Graphene is a new carbon material. Nano-materials based on graphene such as graphene oxide and reduced graphene oxide have excellent physical and chemical properties, which have become a hot research topic in biomedical field in recent years. Composite materials with better performance can be produced by combing such two materials with their own characteristics, which could open up a wider application prospect. In this paper, the preparation methods and properties of silk fibroin/graphene composites and their applications in biomedical field are reviewed. Moreover, the future development of these composites in biomedical field is prospected.
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