Journal
JOURNAL OF CRYSTAL GROWTH
Volume 275, Issue 1-2, Pages E2339-E2344Publisher
ELSEVIER
DOI: 10.1016/j.jcrysgro.2004.11.330
Keywords
Biomaterials; X-ray diffraction; Calcium compounds; Nanomaterials; Phosphates
Funding
- National Science Council [NSC92-2216-E-151-007]
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The biodegradable hydroxyapatite (HA) was synthesized by hydrolysis and characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron diffraction (ED). The HA synthesized from CaHPO4 center dot 2H(2)O(DCPD) in 2.5M NaOH(aq) at 75 degrees C for 1 h had a size of 50 nm in width and 100 nm in length. However, the HA aggregates synthesized from DCPD in 2.5M NaOH(aq) with cetyltrimethylammonium bromide (CTAB) as a surfactant were elongated. When the CTAB concentration was increased from 1 x 10(-4) to 1 x 10(-2) M, the synthesized HA became thinner to a size of 5-20 nm in width and 50 nm in length. For thinner HA aggregates, longer agglomerates were aligned in the synthesis without the CTAB surfactant. (C) 2004 Elsevier B. V. All rights reserved.
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