J. Mater. Sci. Technol. ›› 2017, Vol. 33 ›› Issue (2): 179-186.DOI: 10.1016/j.jmst.2016.05.013.
• Orginal Article • Previous Articles Next Articles
Xiu Peng1,2,Jia Zhaojun3,Lv Jia1,2,Yin Chuan1,2,Cai Hong1,2,Song Chunli1,2,Leng Huijie1,2,Zheng Yufeng3,4,Liu1 Zhongjun2,*,Cheng Yan3,*
Received:
2016-04-05
Accepted:
2016-05-06
Online:
2017-02-20
Published:
2017-05-23
Contact:
Liu1 Zhongjun,Cheng Yan
Xiu Peng,Jia Zhaojun,Lv Jia,Yin Chuan,Cai Hong,Song Chunli,Leng Huijie,Zheng Yufeng,Liu1 Zhongjun,Cheng Yan. Hierarchical Micropore/Nanorod Apatite Hybrids In-Situ Grown from 3-D Printed Macroporous Ti6Al4V Implants with Improved Bioactivity and Osseointegration[J]. J. Mater. Sci. Technol., 2017, 33(2): 179-186.
Fig. 1 Schematic presentation of the two-step surface treatment for obtaining the hierarchical micropore/nanorod apatite hybrids on macroporous Ti64 scaffolds
Fig. 2 (a-c) SEM micrographs showing the microporous/nanorod structure of the surface of the wall of the macroporous scaffolds. (d) The EDS result of the coatings at the selected area in (b) indicating a compositional feature of apatite
Fig. 4 (a, b) TEM images displaying the morphology of a cluster of nanorods scratched from the coatings. Here, (b) is enlarged observation of area 1 in (a) and the “rods” were false-colored pink for visual identification. (c) HRTEM image taken from area 2 in (b). (d) Fast Fourier transformation (FFT) image of the lattice fringes in (c)
Fig. 5 SEM images of the surface morphologies of the porous Ti64 scaffold immersed in stimulated body fluid (SBF) for a given period: (a) untreated scaffold at day 14; (b) MAO-HT treated scaffold at day 3
Fig.6 Light optical micrographs of the histological sections of the untreated (a) and MAO-HT treated (b) porous Ti64 implants at 8 weeks; (c, d) the SEM images of the untreated and MAO-HT treated implants, respectively
Fig.7 Quantitative results of bone in-growth (a) and bone implant contact ratio (b) of the 2 types of implants; * p?<?0.05. Sample number in each group is 6
Fig.8 Representative fluorescent images of the untreated (a) and MAO-HT treated (b) porous Ti64 at 8 weeks; the bone-formation fronts at the 3rd and 6th weeks are marked by a green label from calcein (arrow) and a red label from alizarin (arrow), respectively
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