Novel patterning of nano-bioceramics: template-assisted electrohydrodynamic atomization spraying.
The ability to create patterns of bioactive nanomaterials particularly on metallic and other types of implant surfaces is a crucial feature in influencing cell response, adhesion and growth. In this report, we uncover and elucidate a novel method that allows the easy deposition of a wide variety of predetermined topographical geometries of nanoparticles of a bioactive material on both metallic and non-metallic surfaces. Using different mesh sizes and geometries of a gold template, hydroxyapatite nanoparticles suspended in ethanol have been electrohydrodynamically sprayed on titanium and glass substrates under carefully designed electric field conditions. Thus, different topographies, e.g. hexagonal, line and square, from hydroxyapatite nanoparticles were created on these substrates. The thickness of the topography can be controlled by varying the spraying time.
Li
X
X
Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK.
Huang
J
J
Edirisinghe
M J
MJ
D040761:Biomimetic Materials / Q000737:chemistry; D018786:Bone Substitutes; D002516:Ceramics / Q000737:chemistry*; D017886:Durapatite / Q000737:chemistry; D004553:Electric Conductivity; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry*; D013499:Surface Properties
D018786:Bone Substitutes; D017886:Durapatite
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