Abstract
Tissue engineering has a great application prospect as an effective treatment for tissue and organ injury, functional reduction, or loss. Bioactive tissues are reconstructed and damaged organs are repaired by the three elements, including cells, scaffold materials, and growth factors. Graphene-based composites can be used as reinforcing auxiliary materials for tissue scaffold preparation because of their large specific surface area, and good mechanical support. Tissue engineering scaffolds with graphene-based composites have been widely studied. Part of research have focused on the application of graphene-based composites in single tissue engineering. The basic principles of graphene materials used in tissue engineering are summarized in some research. Some studies emphasized the key problems and solutions urgently needed to be solved in the development of tissue engineering and discussed their application prospect. Some related studies mainly focused on the conductivity of graphene and discussed the application of electroactive scaffolds in tissue engineering. In this review, the composite materials for preparing tissue engineering scaffolds are briefly described, which emphasizes the preparation methods, biological properties, and practical applications of graphene-based composite scaffolds. The synthetic techniques, with stressing solvent casting, electrospinning, and three-dimensional printing, are introduced in detail. The mechanical, cell-oriented, and biocompatible properties of graphene-based composite scaffolds in tissue engineering are analyzed and summarized. Their applications in bone tissue engineering, nerve tissue engineering, cardiovascular tissue engineering, and other tissue engineering are summarized systematically. In addition, this work also looks forward to the difficulties and challenges in the future research, providing some references for the follow-up research of graphene-based composites in tissue engineering scaffolds. Impact statement Regeneration and repair of tissue and organ injury has become a new research hotspot in recent years. Tissue engineering scaffolds prepared with graphene-based materials have good biocompatibility, excellent mechanical properties, and strong cell orientation, which can fully induce the proliferation and differentiation of seed cells. This review briefly describes the basic materials for the preparation of tissue engineering scaffolds, and focuses on the preparation, performance, and application of graphene-based materials in tissue engineering, providing sufficient understanding of graphene applied in regenerative medicine.
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