Abstract
The ultrastructure of nanoscale apatite biomimetically formed on an organic template from a supersaturated mineralizing solution was studied to examine the morphological and crystalline arrangement of mineral apatites. Needle-shaped apatite crystal plates with a size distribution of ∼100 to ∼1000 nm and the long axis parallel to the c axis ([002]) were randomly distributed in the mineral films. Between these randomly distributed needle-shaped apatite crystals, amorphous phases and apatite crystals (∼20–40 nm) with the normal of the grains quasi-perpendicular to the c axis were observed. These observations suggest that the apatite film is an interwoven structure of amorphous phases and apatite crystals with various orientations. The mechanisms underlying the shape of the crystalline apatite plate and aggregated apatite nodules are discussed from an energy-barrier point of view. The plate or needle-shaped apatite is favored in single-crystalline form, whereas the granular nodules are favored in the polycrystalline apatite aggregate. The similarity in shape in both single-crystalline needle-shaped apatite and polycrystalline granular apatite over a wide range of sizes is explained by the principle of similitude, in which the growth and shape are determined by the forces acting upon the surface area and the volume.
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B.C. Bunker, P.C. Rieke, B.J. Tarasevich, A.A. Campbell, G.E. Fryxell, G.L. Graff, L. Song, J. Liu, J.W. Virden G.L. McVay: Ceramic thin-film formation on functionalized interfaces through biomimetic processing. Science 264, 48 1994
M. Tanahashi, T. Kokubo, T. Nakamura, Y. Katsura M. Nagano: Ultrastructural study of an apatite layer formed by biomimetic process and its bonding to bone. Biomaterials 17, 47 1996
Y.F. Chou, W.A. Chiou, Y. Xu, J.C.Y. Dunn B.M. Wu: The effect of pH on the structural evolution of accelerated biomimetic apatite. Biomaterials 25, 5323 2004
D.V. Vasudev, J.L. Ricci, C. Sabatino, P. Li R. Parsons: In vivo evaluation of a biomimetic apatite coating grown on titanium surfaces. J. Biomed. Mater. Res. 69A, 629 2004
W.L. Murphy, D.H. Kohn D.J. Mooney: Growth of continuous bone-like mineral within porous poly(lactic-co-glycolic acid) scaffolds in-vitro. J. Biomed. Mater. Res. 50, 50 2000
D.H. Kohn, K. Shin, S.I. Hong, A.C. Jayasuriya, E.V. Leonova, R.A. Rossello P.H. Krebsbach: Self-assembled mineral scaffold as a model systems for biomineralization and tissue engineering in Proceedings of 8th International Conference on the Chemistry and Biology of Mineralized Tissue, edited by W.J. Landis and J. Sodek (University of Toronto Press Toronto, ON, Canada) 2005 216
L. Müller F.A. Müller: Preparation of SBF with different HCO3 content and its influence on the composition of biomimetic apatites. Acta Biomater. 2, 181 2006
X.B. Yang, D.W. Green, H.I. Roach, N.M. Clarke, H.C. Anderson, S.M. Howdle, K.M. Shakesheff R.O. Oreffo: Novel osteoinductive biomimetic scaffolds stimulate human osteoprogenitor activity-implications for skeletal repair. Connect. Tissue Res. 44(Suppl. 1), 312 2003
L.L. Hench: Bioceramics: From concept to clinic. J. Am. Ceram. Soc. 74, 1487 1991
E.D. Eanes: Dynamics of calcium phosphate precipitation in Calcification in Biological Systems, edited by E. Bonucci (CRC Press, Boca Raton, FL) 1992 1
R.Z. LeGeros: Calcium Phosphates in Oral Biology and Medicine Karger Basel, Switzerland 1991 12
L. Janasova, F.A. Muller, A. Helebrant, J. Strnad P. Greil: Biomimetic apatite formation on chemically treated titanium. Biomaterials 25, 1187 2004
X. Lu Y. Leng: TEM study of calcium phosphate precipitation on bioactive titanium surfaces. Biomaterials 25, 1779 2004
J.D. Layani, F.J.G. Guisinier, P. Steuer, H. Cohen, J.C. Voegel I. Mayer: High resolution electron microscopy study of synthetic carbonate and aluminum containing apatites. J. Biomed. Mater. Res. 50, 199 2000
M. Aizawa, A.E. Porter, S.M. Best W. Bonfield: Ultrastructural observation of single crystal apatite fibers. Biomaterials 26, 3427 2005
Y. Leng, J. Chen S. Qu: TEM study of calcium phosphate precipitation on HA/TCP ceramics. Biomaterials 24, 2125 2003
L.N. Luong, S.I. Hong, R.J. Patel, M.E. Outslay D.H. Kohn: Spatial control of protein within biomimetically nucleated mineral. Biomaterials 27, 1175 2006
K.H. Lee S.I. Hong: Interfacial and twin boundary structures of nanostructured Cu-Ag filamentary composites. J. Mater. Res. 18, 2194 2003
R.Z. LeGeros, J.P. LeGeros, O.R. Trautz, E. Klein W.P. Shirra: Conversion of monetite, CaHPO4 to apatites: Effect of carbonate on the crystallinity and the morphology of the appatite crystallites. Adv. X-ray Anal. 14, 57 1971
E.D. Eanes, J.D. Termine M.U. Nylen: An electron microscope study of the formation of amorphous calcium phosphate and its transformation to crystalline apatite. Calcif. Tissue Res. 12, 143 1973
E.D. Eanes A.S. Poster: A note on the crystal growth of hydroxyapatite precipitated from aqueous solutions. Mater. Res. Bull. 6, 377 1970
R.C. Tomalin: The principle of similitude. Phys. Rev. 3, 244 1914
D.W. Thomson: On Growth and Form Cambridge University Press Cambridge, UK 1961
E.W. Weibel Fractal geometry: A design principle for living organisms. Am. J. Physiol. Lung Cell. Mol. Physiol., 261, L361 1991
S.I. Hong: Influence of dynamic strain aging on the dislocation structure. Mater. Sci. Eng. 79, 1 1986
A. Godfrey D.A. Hughes: Physical parameters linking deformation microstructures over a wide range of length scale. Scripta Mater. 51, 831 2004
S.I. Hong H.J. Kwon: Superplasticity of Cu-Ag microcomposites. J. Mater. Res. 16, 1822 2001
L.N. Luong, S.I. Hong, R.J. Patel, M.E. Outslay D.H. Kohn: Spatial control of protein within biomimetically nucleated mineral. Biomaterials 27, 1175 2006
A. Rindby, P. Voglis P. Engstrom: Microdiffraction studies of bone tissues using synchrotron radiation. Biomaterials 19, 2083 1998
S.I. Hong, S.K. Hong D.K. Kohn: Nanostructural analysis of murine femoral trabecular bone. (unpublished study, University of Michigan) 2007
N.D. Sahar, S.I. Hong D.H. Kohn: Micro- and nano-structural analyses of damage in bone. Micron 36, 617 2005
S. Weiner H.D. Wagner: The material bone: Structure-mechanical function relations. Annu. Rev. Mater. Sci. 28, 271 1998
K. Khan, H. McKay, P. Kannus, D. Bailey, J. Wark K. Bennel: Physical Activity and Bone Health (Human Kinetics, Champaign, IL, 2001) 16
R.B. Martin, D.B. Burr N.A. Sharkey: Skeletal Tissue Mechanics Springer New York 1998 227
M.A. Rubin, I. Jasiuk, J. Taylor, J. Rubin, T. Ganey R.P. Apkarian: TEM analysis of the nanostructure of normal and osteoporotic human trabecular bone. Bone 33, 270 2003
W.J. Landis, M.J. Song, A. Leith, L. McEwen B.F. McEwen: Mineral and organic interaction in normally calcifying tendon visualized in three dimensions by high volatage electron microscopic tomography and graphic imaging reconstruction. J. Struct. Biol. 110, 39 1993
A.A. Griffith: The phenomena of rupture and flow in solids. Philos. Trans. R. Soc. London, Ser. A 221, 163 1920
S.I. Hong C. Suryanarayana: Is ductilization of intermetallic compounds by nanostructure processing a possibility? Mater. Trans., JIM 42, 502 2001
R. Rohanizadeh, R.Z. LeGeros, S. Bohie, P. Pilet, A. Barbier G. Daculsi: Ultrastructural properties of bone mineral of control and tiludronate-treated osteoporotic rat. Calcif. Tissue Int. 67, 330 2000
D.H. Kohn, N.D. Sahar, S.I. Hong, K. Golcuk M.D. Morris: Local mineral and matrix changes associated with bone adaptation and microdamage in Mechanical Behavior of Biological and Biomimetic Materials, edited by A.J. Bushby, V.L. Ferguson, C-C. Ko, and M.L. Oyen (Mater. Res. Soc. Symp. Proc. 898E, Warrendale, PA) 2006 0898-L09-03
D. Zaffe: Some consideration on biomaterials and bone. Micron. 36, 583 2005
S.V. Dorozhkin: Calcium orthophosphates. J. Mater. Sci. 42, 1061 2007
J.Y. Rho, L. Kuhn-Spearing P. Zioupos: Mechanical properties and the hierarchial structure of bone. Med. Eng. Phys. 20, 92 1998
Acknowledgments
We acknowledge the support from National Institutes of Health Grants R01 DE 013380 and DE 015411 (to D.H. Kohn). S.I. Hong is grateful for support from the Korea Research Foundation (2004-D00318).
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Hong, S., Lee, K., Outslay, M. et al. Ultrastructural analyses of nanoscale apatite biomimetically grown on organic template. Journal of Materials Research 23, 478–485 (2008). https://doi.org/10.1557/JMR.2008.0051
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DOI: https://doi.org/10.1557/JMR.2008.0051