期刊
JOURNAL OF THE ROYAL SOCIETY INTERFACE
卷 5, 期 19, 页码 253-257出版社
ROYAL SOC
DOI: 10.1098/rsif.2007.1162
关键词
topography; hydroxyapatite; nanoparticles; template-assisted; electrohydrodynamic; 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.
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