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Indonesia
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Professor of Materials Engineering | Biomaterials & Ceramics Specialist | Research & Publication Consultant
Profile Summary
Subject Matter Expertise
Services
Writing
Technical Writing
Research
Scientific and Technical Research
Consulting
Scientific and Technical Consulting,
Manufacturing Consulting
Product Development
Formulation,
Recipe Development,
Product Evaluation,
Manufacturing
Work Experience
Head
Universitas Indo Global Mandiri
May 2023 - April 2024 
Professor
International Islamic University Malaysia
August 2004 - July 2021
Education
D.Eng. (Department of Applied Chemistry, Faculty of Engineering)
University of Tokyo
April 1993 - September 1996
M. Eng. (Industrial Chemistry (Faculty of Science and Technology))
Tokyo University of Science
April 1991 - March 1993
Bachelor of Technology (Industrial Chemistry (Faculty of Science and Technology))
Tokyo University of Science
April 1987 - March 1991
Certifications
-
Chartered Engineer
The Institute of Materials, Minerals & Mining & The Engineering Council
April 2020 - Present
-
FIMMM
The Institute of Materials, Minerals & Mining (IOM3)
February 2020 - Present
-
FAIC
The American Institute of Chemists
September 2019 - Present
-
Certified Chemical Engineer
The American Institute of Chemists
February 2020 - June 2023
Publications
JOURNAL ARTICLE
Iis Sopyan, Abdul Rahim Toibah, Singh Ramesh, Maizirwan Mel, Asep Sofwan Faturahman Alqap (2024). Magnesium-enhanced porous hydroxyapatite ceramics: Morphometric parameters, physical properties and bioactivity . Ceramics International.
Hablee, S., Samsudin, N., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M., Hashim, Y.Z.H.-Y., Raus, R.A.(2019). Calcium phosphate /poly (Ethylene glycol) bone cement: Cell culture performance . International Journal of Recent Technology and Engineering. 7. (6). p. 82-86.
IIS SOPYAN, Sufiamie Hablee, Maizirwan Mel, Hamzah Mohd. Salleh, Md. Mujibur Rahman (2018). Effect of poly(ethylene glycol) on the injectability, setting behavior and mechanical properties of calcium phosphate bone cement . IIUM Engineering Journal.
Iis Sopyan, Nurul Nabilah Razali (2018). Incorporation of Poly(Vinyl Alcohol) for The Improved Properties of Hydrothermal Derived Calcium Phosphate Cements . Indonesian Journal of Chemistry.
Adeleke, S.A., Bushroa, A., Kusumawan Herliansyah, M., Sopyan, I., Jefrey Basirun, W., Ladan, M.(2018). Preparation, scratch adhesion and anti-corrosion performance of TiO<inf>2</inf>-MgO-BHA coating on Ti6Al4V implant by plasma electrolytic oxidation technique . Journal of Adhesion Science and Technology. 32. (1). p. 91-102.
Adeleke, S.A., Ramesh, S., Bushroa, A.R., Ching, Y.C., Sopyan, I., Maleque, M.A., Krishnasamy, S., Chandran, H., Misran, H., Sutharsini, U.(2018). The properties of hydroxyapatite ceramic coatings produced by plasma electrolytic oxidation . Ceramics International. 44. (2). p. 1802-1811.
Mamun, A.A., AlSaadi, M.A., Alam, M.Z., Sopyan, I.(2018). Carbon nanotubes grown on oil palm shell powdered activated carbon as less hazardous and cheap substrate . Applied Nanoscience (Switzerland). 8. (7). p. 1767-1779.
Ramesh, S., Zulkifli, N., Tan, C.Y., Wong, Y.H., Tarlochan, F., Ramesh, S., Teng, W.D., Sopyan, I., Bang, L.T., Sarhan, A.A.D.(2018). Comparison between microwave and conventional sintering on the properties and microstructural evolution of tetragonal zirconia . Ceramics International. 44. (8). p. 8922-8927.
Hablee, S., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M.(2018). Effect of poly (Ethylene Glycol) on the injectability, setting behavior, and mechanical properties of calcium phosphate bone cement . IIUM Engineering Journal. 19. (2). p. 192-202.
Razali, N.N., Sopyan, I.(2018). Incorporation of poly(Vinyl alcohol) for the improved properties of hydrothermal derived calcium phosphate cements . Indonesian Journal of Chemistry. 18. (2). p. 354-361.
Sopyan, I., Pusparini, E., Ramesh, S., Tan, C.Y., Ching, Y.C., Wong, Y.H., Abidin, N.I.Z., Chandran, H., Ramesh, S., Bang, L.T.(2017). Influence of sodium on the properties of sol-gel derived hydroxyapatite powder and porous scaffolds . Ceramics International. 43. (15). p. 12263-12269.
Samsudin, N., Hashim, Y.Z.H.-Y., Arifin, M.A., Mel, M., Salleh, H.M., Sopyan, I., Jimat, D.N.(2017). Optimization of ultraviolet ozone treatment process for improvement of polycaprolactone (PCL) microcarrier performance . Cytotechnology. p. 1-16.
Mardziah, C.M., Masdek, N.R.N., Hyie, K.M., Sopyan, I.(2017). Physicochemical characteristics of magnesium hydroxyapatite (MgHA) derived via wet precipitation method . Journal of Mechanical Engineering. SI 4. (5). p. 209-216.
Adeleke, S.A., Bushroa, A.R., Sopyan, I.(2017). Recent development of calcium phosphate-based coatings on titanium alloy implants . Surface Engineering and Applied Electrochemistry. 53. (5). p. 419-433.
Samsudin, N., Hashim, Y.Z.H.-Y., Arifin, M.A., Mel, M., Salleh, H.M., Nordin, N., Sopyan, I., Jimat, D.N.(2017). Statistical optimization of gelatin immobilisation on modified surface PCL microcarrier to improve PCL microcarrier compatibility . Jurnal Teknologi. 79. (6). p. 167-175.
Sopyan, I., Gunawan, Shah, Q.H., Mel, M.(2016). Fabrication and Sintering Behavior of Zinc-Doped Biphasic Calcium Phosphate Bioceramics . Materials and Manufacturing Processes. 31. (6). p. 713-718.
Adzila, S., Ramesh, S., Sopyan, I.(2016). Properties of magnesium doped nanocrystalline hydroxyapatite synthesize by mechanochemical method . ARPN Journal of Engineering and Applied Sciences. 11. (24). p. 14097-14100.
Hablee, S., Razali, N.N., Alqap, A.S.F., Sopyan, I.(2016). Recent developments on injectable calcium phosphate bone cement . Recent Patents on Materials Science. 9. (2).
Arifin, M.A., Mel, M., Samsudin, N., Hashim, Y.Z.H.-Y., Salleh, H.M., Sopyan, I., Nordin, N.(2016). Ultraviolet/ozone treated polystyrene microcarriers for animal cell culture . Journal of Chemical Technology and Biotechnology. 91. (10). p. 2607-2619.
Alaei, I., Al-Bat'hi, S.A.M., Sopyan, I.(2015). Fabrication and characterization of poly (ethylene oxide) for photo-electronic devices . ARPN Journal of Engineering and Applied Sciences. 10. (22). p. 17239-17241.
Mahmood, M.H., Suryanto, Sopyan, I.(2015). Hydrophobic organosilica coating on steel and aluminium . ARPN Journal of Engineering and Applied Sciences. 10. (22). p. 17252-17255.
Adeleke, S.A., Sopyan, I., Bushroa, A.R.(2015). Hydroxyapaptite layer formation on titanium alloys surface using micro-arc oxidation . ARPN Journal of Engineering and Applied Sciences. 10. (21). p. 10101-10108.
Gunawan, Sopyan, I., Mel, M., Suryanto(2014). Investigations of the effects of initial Zn concentration and sintering conditions on the phase behavior and mechanical properties of Zn-doped bcp . Advances in Environmental Biology. 8. (3 SPEC. ISSUE). p. 680-685.
Mamun, A.A., Al-Saadi, M.A., Muyibi, S.A., Alam, M.Z., Sopyan, I.(2014). Kinetics of cadmium adsorption by CNTs grown on PACs . International Journal of Nanoelectronics and Materials. 7. (1). p. 25-33.
Gunawan, Sopyan, I., Mel, M., Suryanto(2014). Preparation of zinc doped-biphasic calcium phosphate/carbon nanotube composites . Advances in Environmental Biology. 8. (3 SPEC. ISSUE). p. 787-791.
Gunawan, Sopyan, I., Suryant, Naqshbandi, A.(2014). Zinc-doped biphasic calcium phosphate nanopowders synthesized via sol-gel method . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 53. (2). p. 152-158.
Naqshbandi, A.R., Sopyan, I., Gunawan(2013). Development of porous calcium phosphate bioceramics for bone implant applications: A review . Recent Patents on Materials Science. 6. (3). p. 238-252.
Adzila, S., Sopyan, I., Yong, T.C., Singh, R., Hoong, W.Y., Purbolaksono, J., Hamdi, M.(2013). Mechanochemical synthesis of nanohydroxyapatite bioceramics . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 52. (12). p. 1570-1575.
Adzila, S., Sopyan, I., Singh, R., Pusparini, E., Hamdi, M.(2013). Mechanochemical synthesis of sodium doped hydroxyapatite powder . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 52. (6). p. 739-743.
Al-Bat'hi, S.A.M., Alaei, I., Sopyan, I.(2013). Natural photosensitizers for dye sensitized solar cells . International Journal of Renewable Energy Research. 3. (1). p. 138-143.
Aziz, R.A., Sopyan, I.(2013). Photocatalytic decomposition of acetaldehyde gas on TiO<inf>2</inf>-SiO<inf>2</inf> thin film photocatalyst - A kinetic analysis . Indian Journal of Chemical Technology. 20. (2). p. 137-144.
Ramesh, S., Adzila, S., Jeffrey, C.K.L., Tan, C.Y., Purbolaksono, J., Noor, A.M., Hassan, M.A., Sopyan, I., Teng, W.D.(2013). Properties of hydroxyapatite synthesize by wet chemical method . Journal of Ceramic Processing Research. 14. (4). p. 448-452.
Adzila, S., Murad, M.C., Sopyan, I.(2012). Doping metal into calcium phosphate phase for better performance of bone implant materials . Recent Patents on Materials Science. 5. (1). p. 18-47.
Sopyan, I., Fadli, A., Mel, M.(2012). Effect of hydroxyapatite and tricalcium phosphate addition on protein foaming-consolidation porous alumina . Journal of Porous Materials. 19. (5). p. 733-743.
Rahman, M.M., Nor, S.S.M., Rahman, H.Y., Sopyan, I.(2012). Effects of forming parameters and sintering schedules to the mechanical properties and microstructures of final components . Materials and Design. 33. (1). p. 153-157.
Sopyan, I., Fadli, A.(2012). Floating porous alumina from protein foaming-consolidation technique for cell culture application . Ceramics International. 38. (6). p. 5287-5291.
Ramesh, S., Purbolaksono, J., Hamdi, M., Sopyan, I., Tolouei, R., Amiriyan, M., Tarlochan, F., Teng, W.D.(2012). Low-temperature degradation (LTD) behaviour of CuO-doped tetragonal zirconia ceramic . Ceramics - Silikaty. 56. (1). p. 15-19.
Sopyan, I., Fadli, A., Mel, M.(2012). Porous alumina-hydroxyapatite composites through protein foaming-consolidation method . Journal of the Mechanical Behavior of Biomedical Materials. 8. p. 86-98.
Sopyan, I., Rahim, T.A.(2012). Porous magnesium-doped biphasic calcium phosphate ceramics prepared via polymeric sponge method . Materials and Manufacturing Processes. 27. (6). p. 702-706.
Ramesh, S., Tolouei, R., Amiriyan, M., Tan, C.Y., Sopyan, I., Hamdi, M., Purbolaksono, J., Teng, W.D.(2012). Sintering and mechanical properties of MgO-doped HA bioceramic . Advanced Science Letters. 14. (1). p. 278-280.
Ramesh, S., Tan, C.Y., Tolouei, R., Amiriyan, M., Purbolaksono, J., Sopyan, I., Teng, W.D.(2012). Sintering behavior of hydroxyapatite prepared from different routes . Materials and Design. 34. p. 148-154.
Ramesh, S., Tan, C.Y., Yeo, W.H., Tolouei, R., Amiriyan, M., Sopyan, I., Teng, W.D.(2011). Effects of bismuth oxide on the sinterability of hydroxyapatite . Ceramics International. 37. (2). p. 599-606.
Sopyan, I., Ramesh, S., Nawawi, N.A., Tampieri, A., Sprio, S.(2011). Effects of manganese doping on properties of sol-gel derived biphasic calcium phosphate ceramics . Ceramics International. 37. (8). p. 3703-3715.
Sopyan, I., Hafizah, N., Jamal, P.(2011). Immobilization of TiO<inf>2</inf> with cement: Photocatalytic degradation of phenol and its kinetic studies . Indian Journal of Chemical Technology. 18. (4). p. 263-270.
Nawawi, N.A., Sopyan, I., Ramesh, S., Afzeri(2011). Phase behaviour of manganese-doped biphasic calcium phosphate ceramics synthesized via sol-gel method . Asia-Pacific Journal of Chemical Engineering. 6. (6). p. 823-831.
Fadli, A., Sopyan, I., Mel, M., Ahmad, Z.(2011). Porous alumina through protein foaming-consolidation method: Effect of dispersant concentration on the physical properties . Asia-Pacific Journal of Chemical Engineering. 6. (6). p. 863-869.
Fadli, A., Sopyan, I.(2011). Porous ceramics with controllable properties prepared by protein foaming-consolidation method . Journal of Porous Materials. 18. (2). p. 195-203.
Nawawi, N.A., Alqap, A.S.F., Sopyan, I.(2011). Recent Progress on hydroxyapatite-based dense biomaterials for load bearing bone substitutes . Recent Patents on Materials Science. 4. (1). p. 63-80.
Sopyan, I., Nawawi, N.A., Shah, Q.H., Ramesh, S., Tan, C.Y., Hamdi, M.(2011). Sintering and properties of dense manganese-doped calcium phosphate bioceramics prepared using sol-gel derived nanopowders . Materials and Manufacturing Processes. 26. (7). p. 908-914.
Rashmi, W., Ismail, A.F., Sopyan, I., Jameel, A.T., Yusof, F., Khalid, M., Mubarak, N.M.(2011). Stability and thermal conductivity enhancement of carbon nanotube nanofluid using gum arabic . Journal of Experimental Nanoscience. 6. (6). p. 567-579.
Diana, F., Sopyan, I., Mel, M.(2011). Synthesis of TiO <inf>2</inf> nanosized powder photocatalyst via solgel method for bacteria inactivation application . Malaysian Journal of Microscopy. 7. (1). p. 161-169.
Alsaadi, M.A., Al-Mamun, A., Muyibi, S.A., Alam, M.Z., Sopyan, I., Atieh, M.A., Ahmed, Y.M.(2011). Synthesis of various carbon nanomaterials (CNMs) on powdered activated carbon . African Journal of Biotechnology. 10. (81). p. 18892-18905.
Toque, J.A., Herliansyah, M.K., Hamdi, M., Ide-Ektessabi, A., Sopyan, I.(2010). Adhesion failure behavior of sputtered calcium phosphate thin film coatings evaluated using microscratch testing . Journal of the Mechanical Behavior of Biomedical Materials. 3. (4). p. 324-330.
Fariza, A.R., Zuraida, A., Sopyan, I.(2010). Application of low cost polyurethane (PU) foam for fabricating porous tri-calcium phosphate (TCP) . Journal of Biomimetics, Biomaterials, and Tissue Engineering. 8. (1). p. 1-7.
Toque, J.A., Hamdi, M., Ide-Ektessabi, A., Sopyan, I.(2009). Effect of the processing parameters on the integrity of calcium phosphate coatings produced by RF-magnetron sputtering . International Journal of Modern Physics B. 23. (31). p. 5811-5818.
Alqap, A.S.F., Sopyan, I.(2009). Low temperature hydrothermal synthesis of calcium phosphate ceramics: Effect of excess Ca precursor on phase behaviour . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 48. (11). p. 1492-1500.
Sopyan, I., Hafizah, N.(2009). Nanosized TiO<inf>2</inf> photocatalyst powder via sol-gel method: Effect of hydrolysis degree on powder properties . International Journal of Photoenergy. 2009.
Sopyan, I., Kaur, J.(2009). Preparation and characterization of porous hydroxyapatite through polymeric sponge method . Ceramics International. 35. (8). p. 3161-3168.
Sopyan, I., Natasha, A.N.(2009). Preparation of nanostructured manganese-doped biphasic calcium phosphate powders via sol-gel method . Ionics. 15. (6). p. 735-741.
Fadli, A., Sopyan, I.(2009). Preparation of porous alumina for biomedical applications through protein foaming-consolidation method . Materials Research Innovations. 13. (3). p. 327-329.
Aziz, R.A., Sopyan, I.(2009). Recent progress on development of TiO<inf>2</inf> thin film photocatalysts for pollutant removal . Recent Patents on Materials Science. 2. (2). p. 88-111.
Mardziah, C.M., Sopyan, I., Ramesh, S.(2009). Strontium-doped hydroxyapatite nanopowder via sol-gel method: Effect of strontium concentration and calcination temperature on phase behavior . Trends in Biomaterials and Artificial Organs. 23. (2). p. 105-113.
Aziz, R.A., Sopyan, I.(2009). Synthesis of TiO<inf>2</inf>-SiO<inf>2</inf> powder and thin film photocatalysts by sol-gel method . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 48. (7). p. 951-957.
Sopyan, I., Rosli, A., Raihana, M.F.(2008). A novel hydrothermal process to produce hydroxyapatite powders . The Medical journal of Malaysia. 63 Suppl A. p. 81-82.
Mel, M., Sopyan, I., Nor, Y.A.(2008). Cell attachment study of chicken fibroblast cell (DF-1) using ceramic microcarrier granule in bioreactors . The Medical journal of Malaysia. 63 Suppl A. p. 18-20.
Ramesh, S., Tan, C.Y., Bhaduri, S.B., Teng, W.D., Sopyan, I.(2008). Densification behaviour of nanocrystalline hydroxyapatite bioceramics . Journal of Materials Processing Technology. 206. (1-3). p. 221-230.
Tan, C.Y., Ramesh, S., Aw, K.L., Yeo, W.H., Hamdi, M., Sopyan, I.(2008). Effect of powder calcination on the sintering of hydroxyapatite . The Medical journal of Malaysia. 63 Suppl A. p. 87-88.
Natasha, A.N., Sopyan, I., Mel, M., Ramesh, S.(2008). Influence of manganese doping into HA powders on the properties of its dense bodies . The Medical journal of Malaysia. 63 Suppl A. p. 85-86.
Sopyan, I., Toibah, A.R., Natasha, A.N.(2008). Nanosized bioceramic hydroxyapatite powders via sol-gel method . International Journal of Mechanical and Materials Engineering. 3. (2). p. 133-138.
Sopyan, I.(2008). Recent development on porous calcium phosphate ceramics for biomedical application . The Medical journal of Malaysia. 63 Suppl A. p. 14-15.
Ramesh, S., Tan, C.Y., Aw, K.L., Yeo, W.H., Hamdi, M., Sopyan, I., Teng, W.D.(2008). Sintering behaviour of hydroxyapatite bioceramics . The Medical journal of Malaysia. 63 Suppl A. p. 89-90.
Toibah, A.R., Sopyan, I., Mel, M.(2008). Synthesis and characterization of magnesium doped biphasic calcium phosphate . The Medical journal of Malaysia. 63 Suppl A. p. 83-84.
Mardziah, C.M., Sopyan, I., Hamdi, M., Ramesh, S.(2008). Synthesis and characterization of strontium-doped hydroxyapatite powder via sol-gel method . The Medical journal of Malaysia. 63 Suppl A. p. 79-80.
Sopyan, I., Singh, R., Hamdi, M.(2008). Synthesis of nano sized hydroxyapatite powder using sol-gel technique and its conversion to dense and porous bodies . Indian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry. 47. (11). p. 1626-1631.
Ramesh, S., Tan, C.Y., Sopyan, I., Hamdi, M., Teng, W.D.(2007). Consolidation of nanocrystalline hydroxyapatite powder . Science and Technology of Advanced Materials. 8. (1-2). p. 124-130.
Sopyan, I.(2007). Kinetic analysis on photocatalytic degradation of gaseous acetaldehyde, ammonia and hydrogen sulfide on nanosized porous TiO2 films . Science and Technology of Advanced Materials. 8. (1-2). p. 33-39.
Sopyan, I., Mel, M., Ramesh, S., Khalid, K.A.(2007). Porous hydroxyapatite for artificial bone applications . Science and Technology of Advanced Materials. 8. (1-2). p. 116-123.
Bezzi, G., Celotti, G., Landi, E., La Torretta, T.M.G., Sopyan, I., Tampieri, A.(2003). A novel sol-gel technique for hydroxyapatite preparation . Materials Chemistry and Physics. 78. (3). p. 816-824.
Sopyan, I., Watanabe, M., Murasawa, S., Hashimoto, K., Fujishima, A.(1996). A film-type photocatalyst incorporating highly active TiO<inf>2</inf> powder and fluororesin binder: Photocatalytic activity and long-term stability . Journal of Electroanalytical Chemistry. 415. (1-2). p. 183-186.
Sopyan, I., Watanabe, M., Murasawa, S., Hashimoto, K., Fujishima, A.(1996). An efficient TiO<inf>2</inf> thin-film photocatalyst: Photocatalytic properties in gas-phase acetaldehyde degradation . Journal of Photochemistry and Photobiology A: Chemistry. 98. (1-2). p. 79-86.
Sopyan, I., Watanabe, M., Murasawa, S., Hashimoto, K., Fujishima, A.(1996). Efficient TiO<inf>2</inf>powder and film photocatalysts with rutile crystal structure . Chemistry Letters. (1). p. 69-70.
Gunji, T., Sopyan, I., Abe, Y.(1994). Synthesis of polytitanosiloxanes and their transformation to SiO<inf>2</inf>–TiO<inf>2</inf> ceramic fibers . Journal of Polymer Science Part A: Polymer Chemistry. 32. (16). p. 3133-3139.
CONFERENCE PAPER
Samsudin, N., Hashim, Y.Z.H., Arifin, M.A., Mel, M., Mohd Salleh, H., Sopyan, I., Abdul Hamid, M.(2018). Surface modification of Polycaprolactone (PCL) microcarrier for performance improvement of human skin fibroblast cell culture . IOP Conference Series: Materials Science and Engineering. 290. (1).
Razali, N.N., Sukardi, M.A., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M.(2018). The effects of excess calcium on the handling and mechanical properties of hydrothermal derived calcium phosphate bone cement . IOP Conference Series: Materials Science and Engineering. 290. (1).
Hablee, S., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M.(2018). Antiwashout behavior of calcium phosphate cement incorporated with Poly(ethylene glycol) . IOP Conference Series: Materials Science and Engineering. 290. (1).
Rahman, M.M., Ismail, M.A., Sopyan, I., Rahman, H.Y.(2018). Effects of forming temperature and sintering rate to the final properties of FeCuAl powder compacts formed through uniaxial die compaction process . IOP Conference Series: Materials Science and Engineering. 290. (1).
Rahman, M.M., Rahman, H.Y., Awang, M.A.A., Sopyan, I.(2018). Effects of sintering time and temperature to the characteristics of FeCrAl powder compacts formed at elevated temperature . IOP Conference Series: Materials Science and Engineering. 290. (1).
Adeleke, S.A., Bushroa, A.R., Sopyan, I.(2017). Characteristic Features of Plasma Electrolytic Treated Layers in Na<inf>3</inf>PO<inf>4</inf>Solution . Procedia Engineering. 184. p. 732-736.
Arifin, M.A., Mel, M., Samsudin, N., Hashim, Y.Z.H.-Y., Salleh, H.M., Sopyan, I.(2017). Different oxidation treatments on polystyrene (PS) microspheres by using an ultraviolet/ozone (UVO <inf>3</inf> ) system . Proceedings of the Pakistan Academy of Sciences: Part B. 54. (1B). p. 59-64.
Razali, N.N., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M., Singh, R.(2017). Effect of Poly(Vinyl Alcohol) Addition on the Properties of Hydrothermal Derived Calcium Phosphate Cement for Bone Filling Materials . IOP Conference Series: Materials Science and Engineering. 205. (1).
Hablee, S., Sopyan, I., Mel, M., Salleh, H.M., Rahman, M.M., Singh, R.(2017). Novel Injectable Calcium Phosphate Bone Cement from Wet Chemical Precipitation Method . IOP Conference Series: Materials Science and Engineering. 205. (1).
Toibah, A.R., Sopyan, I., Yuhazri, Y.M., Jeefferie, R.A., Nooririnah, O.(2012). FTIR study on phase behavior of magnesium-doped biphasic calcium phosphate synthesized via sol-gel method . AIP Conference Proceedings. 1455. p. 97-103.
Sopyan, I., Mardziah, M., Ahmad, Z.(2011). Fabrication of porous ceramic scaffolds via polymeric sponge method using sol-gel derived strontium doped hydroxyapatite powder . IFMBE Proceedings. 35 IFMBE. p. 827-830.
Adzila, S., Sopyan, I., Hamdi, M.(2011). Synthesis of hydroxyapatite through dry mechanochemical method and its conversion to dense bodies: Preliminary result . IFMBE Proceedings. 35 IFMBE. p. 97-101.
Alqap, A.S.F., Adzila, S., Sopyan, I., Hamdi, M., Ramesh, S.(2011). Thermal analysis on hydroxyapatite synthesis through mechanochemical method . IFMBE Proceedings. 35 IFMBE. p. 108-111.
Toibah, A.R., Sopyan, I., Hamdi, M., Ramesh, S.(2008). Development of magnesium-doped biphasic calcium phosphatethrough sol-gel method . IFMBE Proceedings. 21 IFMBE. (1). p. 314-317.
Chou Yong, T., Aw, K.L., Yeo, W.H., Ramesh, S., Hamdi, M., Sopyan, I.(2008). Influence of magnesium doping in hydroxyapatite ceramics . IFMBE Proceedings. 21 IFMBE. (1). p. 326-329.
Raihana, M.F., Sopyan, I., Hamdi, M., Ramesh, S.(2008). Novel chemical conversion of eggshell to hydroxyapatite powder . IFMBE Proceedings. 21 IFMBE. (1). p. 333-336.
Ting, C.H., Chou Yong, T., Ramesh, S., Sopyan, I., Teng, W.D.(2008). Sintering behaviour of TiO<inf>2</inf>-doped alumina for biomedical application . IFMBE Proceedings. 21 IFMBE. (1). p. 351-353.
Sopyan, I., Kaur, J., Ramesh, S., Hamdi, M.(2007). Bioactive porous ceramics via polymeric sponge method: The effect of preparation conditions on physical properties . Proceedings of SPIE - The International Society for Optical Engineering. 6423.
Tan, C.Y., Ramesh, S., Hamdi, A.S., Sopyan, I.(2007). Sinterability of hydroxyapatite compacts prepared by cold isostatic pressing for clinical applications . IFMBE Proceedings. 15. p. 137-140.
Ramesh, S., Tan, C.Y., Hamdi, M., Sopyan, I., Teng, W.D.(2007). The influence of Ca/P ratio on the properties of hydroxyapatite bioceramics . Proceedings of SPIE - The International Society for Optical Engineering. 6423.
Sopyan, I., Sulaiman, N.S., Gustiono, D., Herdianto, N.(2006). Porous hydroxyapatite-gelatin composites with functions of bone substitutes and drug releasing agents: A preliminary study . Progress in Biomedical Optics and Imaging - Proceedings of SPIE. 6036.
BOOK
Mardziah, C.M., Sopyan, I., Hyie, K.M., Nik Roselina, N.R.(2014). Conversion of strontium hydroxyapatite nanopowders to porous scaffolds for bone implant application . Applied Mechanics and Materials. 607. p. 3-6.
Naqshbandi, A., Sopyan, I., Gunawan, Suryanto(2014). Sol-gel synthesis of Zn doped HA powders and their conversion to porous bodies . Applied Mechanics and Materials. 493. p. 603-608.
Natasha, A.N., Singh, R., Hamdi, M., Young, T.C., Purbolaksono, J., Sopyan, I., Toulouei, R.(2014). Synthesis and properties of biphasic calcium phosphate prepared by different methods . Advanced Materials Research. 970. p. 20-25.
Alqap, A.S.F., Sopyan, I., Suryanto(2014). The effects of excess calcium and aging media on the mechanical properties of calcium phosphate filling materials . Advanced Materials Research. 911. p. 195-199.
Gunawan, Sopyan, I., Nurfaezah, S., Ammar, M.(2013). Development of triphasic calcium phosphate-carbon nanotubes(HA/TCP-CNT) composite: A preliminary study . Key Engineering Materials. 531-532. p. 258-261.
Mardziah, C.M., Sopyan, I., Nik Roselina, N.R., Hyie, K.M.(2013). Effect of calcining temperatures on the morphology and crystallinity of strontium doped hydroxyapatite nanopowders . Advanced Materials Research. 772. p. 325-330.
Adzila, S., Sopyan, I., Farius, S., Nurfahana, Singh, R.(2013). Mechanochemical synthesis of hydroxyapatite bioceramics through two different milling media . Key Engineering Materials. 531-532. p. 254-257.
Adzila, S., Ramesh, S., Sopyan, I., Tan, C.Y., Hamdi, M., Teng, W.D.(2013). Mechanochemical synthesis of magnesium doped hydroxyapatite: Powder characterization . Applied Mechanics and Materials. 372. p. 62-65.
Sopyan, L., Suryanto, Fadli, A., Ramesh, S.(2013). Protein foaming-consolidation method for fabrication of high performance porous bioceramics . Advanced Materials Research. 622. p. 1759-1763.
Gunawan, Sopyan, I., Naqshbandi, A., Ramesh, S.(2013). Synthesis of zinc doped-biphasic calcium phosphate nanopowder via sol-gel method . Key Engineering Materials. 531-532. p. 614-617.
Sara Lee, K.Y., Christopher Chin, K.M., Ramesh, S., Tan, C.Y., Teng, W.D., Sopyan, I.(2012). Characterization of forsterite bioceramics . Advanced Materials Research. 576. p. 195-198.
Sara Lee, K.Y., Christopher Chin, K.M., Ramesh, S., Tan, C.Y., Hassan, M.A., Purbolaksono, J., Teng, W.D., Sopyan, I.(2012). Effect of ultrasonication on synthesis of forsterite ceramics . Advanced Materials Research. 576. p. 252-255.
Sopyan, I., Mardziah, C.M., Ramesh, S.(2012). Fabrication of porous ceramic scaffolds via polymeric sponge method using sol-gel derived strontium doped hydroxyapatite . Applied Mechanics and Materials. 117-119. p. 829-832.
Norazlina, M.Y., Faridah, Y., Ratnam, C.T., Sopyan, I.(2012). Irradiation modification of epoxidized natural rubber/ethylene vinyl acetate/carbon nanotubes nanocomposites . Advanced Materials Research. 364. p. 196-201.
Norazlina, M.Y., Faridah, Y., Ratnam, C.T., Sopyan, I.(2012). Irradiation modification of epoxidized natural rubber/ethylene vinyl acetate/carbon nanotubes nanocomposites . Advanced Materials Research. 364. p. 427-433.
Amiriyan, M., Kelvin Chew, W.J., Ramesh, S., Tolouei, R., Hassan, M.A., Hossain, A., Sopyan, I., Meenaloshini, S.(2012). Mechanical and electrical properties of Y-TZP/ZrB<inf>2</inf> composite . Advanced Materials Research. 576. p. 228-231.
Adzila, S., Sopyan, I., Hamdi, M.(2012). Mechanochemical synthesis of hydroxyapatite nanopowder: Effects of rotation speed and milling time on powder properties . Applied Mechanics and Materials. 110-116. p. 3639-3644.
Fadli, A., Sopyan, I., Ramesh, S.(2012). Porous alumina from protein foaming-consolidation method containing hydrothermal derived hydroxyapatite powder . Applied Mechanics and Materials. 117-119. p. 782-785.
Sopyan, I., Adlina, S.F., Mohamad, Sa.(2012). Preparation of dense biphasic calcium phosphate ceramics using eggshell derived nanopowders . Applied Mechanics and Materials. 110-116. p. 3645-3649.
Alqap, A.S.F., Sopyan, I., Husni, M., Athirah, N.(2012). The effects of calcium excess, water amount and mixing time on the injectability of calcium phosphate filling materials . Applied Mechanics and Materials. 110-116. p. 8-12.
Tolouei, R., Singh, R., Sopyan, I., Yong, T.C., Amiriyan, M., Dung, T.W.(2011). Dependence of the fracture toughness on the sintering time of dense hydroxyapatite bioceramics . Materials Science Forum. 694. p. 391-395.
Tolouei, R., Tan, C.Y., Ramesh, S., Sopyan, I., Teng, W.D.(2011). Effect of nano silica on the sinterability of hydroxyapatite dense bodies . Advanced Materials Research. 264-265. p. 1832-1838.
Yeo, W.H., Ramesh, S., Tan, C.Y., Aw, K.L., Tolouei, R., Kelvin, H., Sopyan, I., Teng, W.D., Hoque, E.(2011). Effects of bismuth oxide on the properties of calcium phosphate bioceramics . Advanced Materials Research. 264-265. p. 1839-1848.
Aw, K.L., Tolouei, R., Ramesh, S., Tan, C.Y., Yeo, W.H., Kelvin, H., Sopyan, I., Teng, W.D.(2011). Effects of powder synthesis method on the sinterability of hydroxyapatite . Advanced Materials Research. 264-265. p. 1538-1544.
Fariza, A.R., Zuraida, A., Sopyan, I.(2011). Egg yolk as pore creating agent to produce porous tri-calcium phosphate for bone implant application . Advanced Materials Research. 264-265. p. 760-764.
Sopyan, I., Rahim, T.A., Ahmad, Z.A.(2011). Magnesium-doped biphasic calcium phosphate nanopowders via sol-gel method . The Sol-Gel Process: Uniformity, Polymers and Applications. p. 757-772.
Amiriyan, M., Singh, R., Sopyan, I., Satgunam, M., Tolouei, R., Dung, T.W.(2011). Pressureless sintering of electro-conductive zirconia composites . Materials Science Forum. 694. p. 304-308.
Ramesh, S., Tolouei, R., Tan, C.Y., Aw, K.L., Yeo, W.H., Sopyan, I., Teng, W.D.(2011). Sintering of hydroxyapatite ceramic produced by wet chemical method . Advanced Materials Research. 264-265. p. 1856-1861.
Pusparini, E., Sopyan, I., Mohd, H., Singh, R.(2011). Sodium-doped hydroxyapatite nanopowder through sol-gel method: Synthesis and characterization . Materials Science Forum. 694. p. 128-132.
Yusilawati, A.N., Maizirwan, M., Sopyan, I., Hamzah, M.S., Ng, K.H., Wong, C.S.(2011). Surface modification of polystyrene beads by UV/Ozone treatment . Advanced Materials Research. 264-265. p. 1532-1537.
Tan, C.Y., Ramesh, S., Tolouei, R., Sopyan, I., Teng, W.D.(2011). Synthesis of high fracture toughness of hydroxyapatite bioceramics . Advanced Materials Research. 264-265. p. 1849-1855.
Alqap, A.S.F., Sopyan, I., Zubir, S.A.(2010). Concentration effect of aqueous synthesis on biphasic hydroxyapatite - β-tricalcium phosphate composition . Advanced Materials Research. 93-94. p. 405-408.
Sopyan, I., Nawawi, N.A., Shah, Q.H.(2010). Dense manganese doped biphasic calcium phosphate for load bearing bone implants . Advanced Materials Research. 93-94. p. 393-396.
Murad, M.C., Sopyan, I., Rohaida, C., Ahmad, Z., Reusmaazran, M.(2010). Fabrication and characterization of strontium-doped hydroxyapatite bioceramics scaffolds for bone implant application: A preliminary study . Advanced Materials Research. 93-94. p. 401-404.
Fadli, A., Sopyan, I.(2010). Porous alumina through protein foaming-consolidation method: Effect of stirring time and drying temperature on the physical properties . Advanced Materials Research. 93-94. p. 397-400.
Sopyan, I., Kaur, J., Toibah, A.R., Hamdi, M., Ramesh, S.(2008). Effect of slurry preparation on physical properties of porous hydroxyapatite prepared via polymeric sponge method . Advanced Materials Research. 47-50 PART 2. p. 932-935.
Ramesh, S., Aw, K.L., Ting, C.H., Tan, C.Y., Sopyan, I., Teng, W.D.(2008). Effect of copper oxide on the sintering of alumina ceramics . Advanced Materials Research. 47-50 PART 2. p. 801-804.
Natasha, A.N., Sopyan, I., Zuraida, A.(2008). Fourier transform infrared study on sol-gel derived manganese-doped hydroxyapatite . Advanced Materials Research. 47-50 PART 2. p. 1185-1188.
Yusliza, Y., Zuraida, A., Sopyan, I.(2008). Fracture behavior of natural fiber reinforced biopolymer matrix composite . Advanced Materials Research. 47-50 PART 2. p. 1189-1192.
Sopyan, I., Mardziah, C.M., Toibah, A.R., Ramesh, S.(2008). Synthesis of strontium-doped hydroxyapatite powder via sol-gel method . Advanced Materials Research. 47-50 PART 2. p. 928-931.
Sopyan, I.(2006). Silica -titania glass fibers from polytitanosiloxanes: Effect of polymerization mechanism on mechanical properties . Materials Science Forum. 517. p. 73-76.
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