Graphene and graphene oxide (GO) are capable of inducing stem cells differentiation into bone tissue with variable efficacy depending on reductive state of the material. Thus, modulation of osteogenic process and of bone mineral density distribution is theoretically possible by controlling the GO oxidative state. In this study, we laser-printed GO surfaces in order to obtain both a local photo-thermal GO reduction and the formation of nano-wrinkles along precise geometric pattern. Initially, after cells adhered on the surface, stem cells migrated and accumulated on the reduced and wrinkled surface. When the local density of the stem cells on the reduced stripes was high, cells started to proliferate and occupy the oxidized/flat area. The designed surfaces morphology guided stem cell orientation and the reduction accelerated differentiation. Furthermore the reduced sharp nano-wrinkles were able to enhance the GO antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), a common cause of prosthetic joints infections. This strategy can offer a revolution in present and future trends of scaffolds design for regenerative medicine.
Lingua originaleEnglish
pagine (da-a)015027-N/A
Rivista2D Materials
Stato di pubblicazionePubblicato - 2018


  • Chemistry (all)
  • Condensed Matter Physics
  • Materials Science (all)
  • Mechanical Engineering
  • Mechanics of Materials
  • antibacterial
  • graphene
  • laser pattern
  • osteogenesis
  • stem cell
  • tailored medicine


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