1999•Journal of the Society of Materials Science JapanOpen access

Conversion of Hydroxyapatite Contained in Fish Scales to Needle-Like Crystals.

Hiroyuki SAWA, Sanae SUMI, Atsushi Takenaka, Kaoru Aoki

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Abstract

Hydroxyapatite (HAp) contained in fish scales was dissolved in citric acid solution and needle-like HAp crystals were synthesized hydrothermally. In this case, heating for a period of more than 4 hours at 200°C was necessary to obtain the needle-like crystals. Size of the crystals was 1.6-3.1μm long, 0.07-0.2μm thickness and 10-41 aspect ratio. These crystals gathered mutually and formed fan-shaped lump.

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Hydroxyapatite (HAp) contained in fish scales was dissolved in citric acid solution and needle-like HAp crystals were synthesized hydrothermally. In this case, heating for a period of more than 4 hours at 200°C was necessary to obtain the needle-like crystals. Size of the crystals was 1.6-3.1μm long, 0.07-0.2μm thickness and 10-41 aspect ratio. These crystals gathered mutually and formed fan-shaped lump.

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Available abstract

Hydroxyapatite (HAp) contained in fish scales was dissolved in citric acid solution and needle-like HAp crystals were synthesized hydrothermally. In this case, heating for a period of more than 4 hours at 200°C was necessary to obtain the needle-like crystals. Size of the crystals was 1.6-3.1μm long, 0.07-0.2μm thickness and 10-41 aspect ratio. These crystals gathered mutually and formed fan-shaped lump.

Key concepts: Citric acid, Fish <Actinopterygii>, Materials science, Chemical engineering, Chemistry, Mineralogy, Composite material, Nuclear chemistry

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