A Novel Way to Prepare Nano-Hydroxyapatite/Poly(D,L-Lactide) Composite
A composite of needle-like nano-hydroxyapatite (n-HA)/poly (D,L) lactide (PDLLA) was prepared. The n-HA crystals were poorly crystallized and uniformly distributed in the composite with a crystal size of 10–20 nm in diameter by 40–60nm in length，which was smaller than that of pure nano-HA. Molecular interactions and chemical bonds might present between n-HA and PDLLA in the composite, which were revealed by IR and XPS. The synthetic n-HA/PDLLA composite had a good homogeneity and could be a bioactive material for bone defect especially for load-bearing bone repair, which is more potential than pure HA or pure PDLLA.
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Y. M. Xiao et al., "A Novel Way to Prepare Nano-Hydroxyapatite/Poly(D,L-Lactide) Composite", Materials Science Forum, Vols. 475-479, pp. 2383-2386, 2005