Diagram Alir METODE PENELITIAN

4. Hasil analisis komposisi unsur dan senyawa dengan menggunakan EDS menunjukkan komposit hidroksiapatit-silika amorf 5 terdiri dari unsur Si dalam bentuk senyawa SiO 2 , Unsur Ca dalam bentuk senyawa CaO, Unsur P dalam bentuk senyawa P 2 O 5 .

B. Saran

Pada penelitian lebih lanjut disarankan agar: 1. Untuk mengetahui komposisi terbaik komposit hidroksiapatit dan silika disarankan agar penelitian selanjutnya menggunakan komposisi hidroksiapatit dan silika yang berbeda yaitu 15, 20.atau 30. 2. Melakukan uji sifat fisis dan mekanik pada komposit hidroksiapatit untuk mengetahui nilai densitas dan porositas dari sampel. DAFTAR PUSTAKA Barakat, N.A.M. Khil M.S. Sheikh F.A. Omran A.M. Kim H.Y. 2009. Extraction of Pure Natural Hydroxyapatite from the Bovine Bone Bio Waste by Three Different Methods. Materials Processing Technology. Vol. 209. pp. 3408-3415. Barezhnaya, A. 2008. Solid-Phase Interaction In The HydroxyapatiteTitanium Heterostructures Upon High-Temperature Aneling In Air and Argon. Inorganic Materials . Vol. 44, No. 11, pp. 1214-1217. Barsoum,M.W. 2005. Fundamentals Ceramics. John Wiley. New York Brinker, C.J. and Scherer G.W. 1990. The Physics and Chemistry of Sol-Gel Processing. Sol-Gel Science. pp. 839-880. Darjito, Arum C.D. dan Sri W. 2014. Sintesis Biokeramik Hidroksiapatit Ca 10 PO 4 6 OH 2 dari Limbah Tulang Sapi Menggunakan Metode Sol- Gel. Kimia Student Journal. Vol. 1, No. 2, pp. 203-209. Fahimah, A. Diniyah W. Sri W. Mohammad M.K. 2014. Pengaruh Perbandingan Massa a:P Terhadap Sintesis Hidroksiapatit Tulang Sapi dengan Metode Kering. Kimia Student Journal. Vol. 1, No. 2, pp. 196-202. George, S. 2001. Infrared and Raman Characteristic Group Frequencies: Tables and Charts. Canada: Wiley. Habib, F.S. Alam N. Zahra M. Irfan W. Iqbal. 2012. Synthesis Route and Characterization of Hydroxyapatite Powder Prepared from Waste Egg Shells . Pakistan Institute of Technology for Minerals and Advanced Engineering Materials PCSIR Lab. Complex Lahore. Pakistan Heimke, G and Gross P. 1980. Ceramic Implant Materials. Medical Biology Engineering . Vol.18, pp. 503 –510. Hoque, M.E. Sakinah.N. Chuan.Y.L. Ansari.M.N.M. 2014. Synteshesis and Characterization of Hydroxyapatite Bioceramic. International Journal of Scientific Engineering and Technology . Vol. 3, No. 5, pp. 458-462. Jullaphan, O. Witoon T. Chareonpanich M. 2009. Synthesis of Mixed-Phase Uniformly Infiltrated SBA-3-Like in SBA-15 Bimodal Mesoporous Silica From Rice Husk Ash. Materials Letters.Vol. 63, pp. 1303-1306. Kim, M. Yoon S.K. Choi E. Gil B. 2008. Comparison of The Adsorbent Performance Between Rice Hull Ash and Rice Hull Silica Gel According to Their Structural Differences. Food Science and Technology. Vol. 41, pp. 701 –706. Kim, S.R. Leeb J.H. Kim Y.T. Riu D.H. Jung S.J. Lee Y.J. Chung S.C. Kim Y.H. 2002. Synthesis of Si, Mg Substituted Hydroxyapatites and Their Sintering Behaviors. Biomaterials. Vol. 24, pp.1389 –1398. Kusrini, E dan Sontang M. 2012. Characterization of X-Ray Diffraction and Electron Spin Resonance. Physical and Chemistry. Vol. 81, pp. 118-125. Lavernia, C.J.M. and Schoenung. 1991. Calcium Phosphate Ceramics as Bone Substitute. Ceramic Bulletin. Vol. 70, No. 1, pp. 53-62. Li, D.W. Chen D.Y. Zhu X.F. 2011. Reduction in Time Required for Synthesis of High Specific Surface Area Silica from Pyrolized Rice Husk by Precipitation at Low PH. Bioresource Technology. Vol. 102, pp. 7001- 7003. Lin, P. and Groot K. 1994. Better Bioactive Ceramics Through Sol-Gel Process. Journal of Sol-Gel Science and Technology . Vol. 3, No. 3, pp 797-801. Maachou, H. 2008. Characterization and In Vitro Bioactivity of ChitosanHydroxyapatite Composite Membrane Prepared by Freeze- Gelation Method. Ceramics International. Vol. 22, No. 1, pp. 16-27. Matsumoto, T.J. Sang H. Takuya I. Takayosi N. Takuya M. Satosi I. 2011. Zirconia-Hydroxyapatite Composite Material With Micro Porous Structure. Dental Materials. Vol. 27, pp. 205-212. Mollazadeh, S.J. Javadpour A. Khavandi. 2007. In Situ Synthesis and Characterization of Nano-Size Hydroxyapatite in Poly Vinyl Alcohol Matrix. Ceramics International. Vol. 33, pp 1579-1583. Mondal, S. Biswanath M. Apurba d. Sudit S. Mukhopadhay. 2010. Studies of Processing and Characerization of Hydroxyapatite Biomaterials from Different Bio Wastes. Journal of Minerals and Materias Characterization and engineering. Vol. 11, No. 1, pp. 55-67. Nather, A. 2012. Bone grafts and bone substitutes-Basic Science and clinical applications. Structure of bone . Singapore: World Scientific Publishing.