Selective formation of ordered arrays of octacalcium phosphate ribbons on TiO(2) nanotube surface by template-assisted electrodeposition.
Using a patterned superhydrophobicity/superhydrophilicity template, micropatterned octacalcium phosphate (OCP) has been successfully fabricated on TiO(2) nanotube array surface. The resultant OCP micropattern has been characterized with scanning electron microscopy, optical microscopy, X-ray diffraction and electron probe microanalyzer. It is shown that the ribbon-like OCP crystals possess a highly ordered and hierarchically porous structure at nano-micro-scales. They can be selectively grown at superhydrophilic areas which are confined by the hydrophobic regions. The high wetting contrast template proves to be useful for constructing well-defined dual scale OCP film with porous structure biomimic to natural bone. A mechanism has been proposed to explain the formation of the OCP patterned film with hierarchically porous structure and distinct selectivity.
Lai
Yuekun
Y
State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.
Huang
Yongxia
Y
Wang
Hui
H
Huang
Jianying
J
Chen
Zhong
Z
Lin
Changjian
C
D032701:Biomimetics; D002130:Calcium Phosphates / Q000737:chemistry*; D004563:Electrochemistry; D004595:Electroplating; D008855:Microscopy, Electron, Scanning; D043942:Nanotubes / Q000737:chemistry*; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D002130:Calcium Phosphates; D014867:Water; C022045:octacalcium phosphate; D014025:Titanium