Journal
RSC ADVANCES
Volume 6, Issue 30, Pages 25070-25081Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra01155a
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- Yeungnam University
- Korea National Research Foundation [0077110]
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Hydroxyapatite (HA) nanowires were grown by a simple hydrothermal method using cetyl-trimethylammonium-bromide (CTAB) as a surfactant. The growth of preferentially oriented nanowires were suggested to be formed by the orientation-dependent electrostatic interaction between the CTAB ions and HA crystals. We prepared HA nanowires with a diameter of 30 +/- 7 nm and the length of few micrometers. The prolonged hydrothermal treatment with the ideal concentration of CTAB induce the preferential growth of HA nanowires in the c-axis direction. The pronounced peak broadening of mainly (002) planes with the increase of the length of nanowires can be attributed to the natural bending of nanowires with an extremely high aspect ratio. The in vitro cell cultural studies of the HA nanowires showed that the osteoblast cell response enhanced with the uniformity and the specific surface area of HA nanowires.
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