Hydroxyapatite formation from cuttlefish bones: Kinetics

Ivanković, Hrvoje and Tkalčec, Emilija and Orlić, Sebastijan and Gallego Ferrer, Gloria and Schauperl, Zdravko (2010) Hydroxyapatite formation from cuttlefish bones: Kinetics. = Hydroxyapatite formation from cuttlefish bones: Kinetics. Journal of Materials Science: Materials in Medicine, 21 (10). pp. 2711-2722. ISSN 0957-4530. . .

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Abstract

Highly porous hydroxyapatite (Ca10(PO4) 6•(OH)2, HA) was prepared through hydrothermal transformation of aragonitic cuttlefish bones (Sepia officinalis L. Adriatic Sea) in the temperature range from 140 to 220°C for 20 min to 48 h. The phase composition of converted hydroxyapatite was examined by quantitative X-ray diffraction (XRD) using Rietveld structure refinement and Fourier transform infrared spectroscopy (FTIR). Johnson-Mehl-Avrami (JMA) approach was used to follow the kinetics and mechanism of transformation. Diffusion controlled one dimensional growth of HA, predominantly along the a-axis, could be defined. FTIR spectroscopy determined B-type substitutions of CO3 2- groups. The morphology and microstructure of converted HA was examined by scanning electron microscopy. The general architecture of cuttlefish bones was preserved after hydrothermal treatment and the cuttlefish bones retained its form with the same channel size (∼80 × 300 μm). The formation of dandelion-like HA spheres with diameter from 3 to 8 μm were observed on the surface of lamellae, which further transformed into various radially oriented nanoplates and nanorods with an average diameter of about 200-300 nm and an average length of about 8-10 μm. © 2010 Springer Science+Business Media, LLC.

Item Type:	Article (UNSPECIFIED)
Keywords (Croatian):	Adriatic Sea; Average diameter; Average length; Channel sizes; Diffusion controlled; FTIR spectroscopy; Hydrothermal transformation; Hydrothermal treatments; Johnson-mehl-avrami; Kinetics and mechanism; Nanoplates; One-dimensional growth; Porous hydroxyapatite; Quantitative x ray diffraction; Rietveld structure refinement; Sepia officinalis; Temperature range; Apatite; Bone; Fourier transforms; Hydroxyapatite; Nanorods; Rietveld refinement; Scanning electron microscopy; X ray diffraction; Fourier transform infrared spectroscopy; calcium carbonate; hydroxyapatite; nanomaterial; nanoplate; nanorod; unclassified drug; article; bone; crystallization; cuttlefish; diffusion; infrared spectroscopy; kinetics; priority journal; quantitative analysis; scanning electron microscopy; temperature; X ray powder diffraction; Animals; Biocompatible Materials; Bone and Bones; Calcium Carbonate; Decapodiformes; Durapatite; Hot Temperature; Kinetics; Microscopy; Electron; Scanning; Nanostructures; Nanotubes; Powder Diffraction; Spectroscopy; Fourier Transform Infrared; Sepia officinalis; Sepiidae; Taraxacum officinale
Subjects:	TECHNICAL SCIENCE
Divisions:	1000 Department of Materials > 1010 Chair of Materials and Tribology
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Citations JCR:	14 (14.4.2015.)
Citations SCOPUS:	15 (14.4.2015.)
Date Deposited:	14 Apr 2015 12:59
Last Modified:	14 Apr 2015 12:59
URI:	http://repozitorij.fsb.hr/id/eprint/3654

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