Photochemically modified diamond-like carbon surfaces for neural interfaces

Paul May, A.P. Hopper, James M Dugan, A.A. Gill, J.W. Haycock, Frederick Claeyssens, E.M. Regan, S. Kelly

Research output: Contribution to journalArticle (Academic Journal)peer-review

8 Citations (Scopus)


Diamond-like carbon (DLC) was modified using a UV functionalization method to introduce surface-bound amine and aldehyde groups. The functionalization process rendered the DLC more hydrophilic and significantly increased the viability of neurons seeded to the surface. The amine functionalized DLC promoted adhesion of neurons and fostered neurite outgrowth to a degree indistinguishable from positive control substrates (glass coated with poly-L-lysine). The aldehyde-functionalized surfaces performed comparably to the amine functionalized surfaces and both additionally supported the adhesion and growth of primary rat Schwann cells. DLC has many properties that are desirable in biomaterials. With the UV functionalization method demonstrated here it may be possible to harness these properties for the development of implantable devices to interface with the nervous system.
Original languageEnglish
Pages (from-to)1199-1206
JournalMaterials Science and Engineering C
Publication statusPublished - 8 Sept 2015


  • Diamond-like carbon
  • Neurons
  • Schwann cells
  • Amine
  • Aldehyde


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