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Publication Detail
An electrically driven jetting technique for diverse high-resolution surface structures of nanometre hydroxyapatite crystals.
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Li X, Huang J, Edirisinghe M, Bonfield W
  • Publication date:
  • Pagination:
    562, 570
  • Journal:
    Colloids Surf B Biointerfaces
  • Volume:
  • Issue:
  • Status:
  • Country:
  • PII:
  • Language:
  • Keywords:
    Coated Materials, Biocompatible, Crystallization, Durapatite, Electrochemistry, Materials Testing, Metals, Microscopy, Electron, Scanning, Surface Properties, Temperature
Nanometre hydroxyapatite (nHA) coated metallic materials have been successfully used for bone tissue implantation for several decades now due to its sound biological and mechanical properties. The microstructure and surface topography of the implant material are well-known to play a crucial role in influencing cellular responses to implants and bone tissue regeneration ultimately. Recently, a novel jet-based patterning technique, template-assisted electrohydrodynamic atomisation (TAEA) spraying, has been devised to prepare depositions with defined surface topography for guiding the cellular response. In this study, an improvement investigation of this patterning process was carried out to precisely control the nHA surface structure in terms of geographies and dimensions via an angular needle jetting during the patterning process. More importantly, the mechanism of such improvement of the TAEA patterning technique was also discussed and uncovered. A range of diverse nHA surface structures with high-resolution was therefore achieved, which paves the way for the research of the new generation implant materials with defined cellular response.
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