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    Sol-gel synthesis of calcium hydroxyapatite thin films on quartz substrate using dip-coating and spin-coating techniques

    Year: 2014

    Journal: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, Vol. 71, p 437-446, 20150722

    Authors: Malakauskaite-Petruleviciene, Milda; Stankeviciute, Zivile; Beganskiene, Aldona; Kareiva, Aivaras

    Organizations: Vilnius State Univ, Dept Inorgan Chem, LT-03225 Vilnius, Lithuania; Vilnius State Univ, Dept Appl Chem, LT-03225 Vilnius, Lithuania

    Sol-gel synthesis route was suggested to prepare calcium hydroxyapatite (Ca-10(PO4)(6)(OH)(2), CHA) thin films on quartz substrates. CHA thin films were obtained using dip-coating and spin-coating techniques by coating the substrates 1, 5, 15 and 30 times. In the sol-gel process, the ethylenediaminetetraacetic acid and 1,2-ethandiol as complexing agents were used. Moreover, triethanolamine and polyvinyl alcohol were used as gel network forming materials. After each coating procedure the films were annealed at 1,000 A degrees C. The results obtained from dip-coating and spin-coating techniques were compared in this study. It was demonstrated, that the formation of calcium hydroxyapatite depends on dipping (or spinning) time and annealing duration.