Philips Nicolas Gunawidjaja

RIWAYAT PENDIDIKAN

S1 – Fisika, University of Warwick, U.K.

S3 – Fisika, University of Warwick, U.K.

ASOSIASI DALAM ORGANISASI PROFESI

  • Himpunan Fisika Indonesia (HFI)

 BIDANG KEILMUAN

  • Fisika Material (Karakterisasi Material)

PENELITIAN

  1. Berbagai Topik Fisika Material

PUBLIKASI

  1.  P.N. Gunawidjaja,  R. Mathew, A.Y.H. Lo, I. Izquierdo-Barba, A. Garcia, D. Arcos, M Vallet-Regie, M. Edén, “Local structures of mesoporous bioactive glasses and their surface alterations in vitro: inferences from solid-state nuclear magnetic resonance“, Phil.  Trans. R. Soc. A,  370, (2012),  1376-1399
  2. P.N. Gunawidjaja,  I. Izquierdo-Barba, R. Mathew, K. Jansson, A. Garcia, J. Grins, D. Arcos, M Vallet-Regie, M. Edén, “Quantifying apatite formation and cation leaching from mesoporous bioactive glasses in vitro: a SEM, solid-state NMR and powder XRD study“, J.  Mater. Chem.,  22, (2012),  7214
  3. R. Mathew, P.N. Gunawidjaja,  I. Izquierdo-Barba, K. Jansson, A. Garcia, D. Arcos, M Vallet-Regie, M. Edén “Solid-State 31P and 1H NMR Investigations of Amorphous and Crystalline Calcium Phosphates Grown Biomimetically From a Mesoporous Bioactive Glass“, J. Phys. Chem. C, 115 (42), (2011), 20572–20582
  4. S. Iftekhar, J. Grins, P.N. Gunawidjaja, M. Edén, “Glass Formation and Structure–Property–Composition Relations of the RE2O3–Al2O3–SiO2 (RE=La, Y, Lu, Sc) Systems“, J.  Am. Ceram. Soc.,  94 (8), (2011), 2429–2435
  5. P.N. Gunawidjaja, A.Y.H. Lo, I. Izquierdo-Barba, A. Garcia, D. Arcos, B. Stevensson, J. Grins, M. Vallet-Regi, and M. Edén “Biomimetic  Apatite Mineralization Mechanisms of Mesoporous Bioactive Glasses as Probed by Multinuclear 31P, 29Si, 23Na and 13C Solid-State NMR“, J. Phys. Chem. C, 114 (45), (2010), 19345–19356
  6. D. Gebauer, P.N. Gunawidjaja, J.Y.P. Ko, Z. Bacsik, B. Aziz, L. Liu, Y. Hu, L. Bergström, C.W. Tai, T.K. Sham, M. Edén, N. Hedin “Proto-Calcite and Proto-Vaterite in Amorphous Calcium Carbonates“, Angew. Chem. Int. Ed., 49 (47), (2010), 8889-8891
  7. L. A. O’Dell, P. N. Gunawidjaja, M. A. Holland, G. Mountjoy, D. M. Pickup, R. J. Newport and M. E. Smith “Characterisation of sol-gel prepared (HfO2)x(SiO2)1-x (x=0.1, 0.2 and 0.4) by 1H, 13C, 17O and 29Si MAS NMR, FTIR and TGA“, Solid State Nucl. Magn. Reson., 33, (2008), 16-24
  8. D. M. Pickup, F. E. Sowrey, L. J. Skipper, R. J. Newport, P.N. Gunawidjaja, K. O. Drake, M. E. Smith, P. Saravanapavan and L. L. Hench, “The structure of TiO2-SiO2 and CaO-SiO2 sol-gel glasses from neutron diffraction and solid state NMR using isotopic enrichment of titanium, calcium and oxygen“, Phys. Chem. Glasses, 46, (2005), 433-438
  9. G. W. Wallidge, R. Anderson, G. Mountjoy, D. M. Pickup, P.N. Gunawidjaja, R. J. Newport and M. E. Smith,”Advanced physical characterisation of the structural evolution of amorphous (TiO2)x(SiO2)1-x sol-gel materials“, J. Mater. Sci., 39, (2004), 6743-6755
  10. D. M. Pickup, F. E. Sowrey, R. J. Newport, P. N. Gunawidjaja, K. O. Drake and M. E. Smith, “The structure of TiO2-SiO2 sol-gel glasses from neutron diffraction with isotopic substitution of titanium and O-17 and Ti-49 solid-state NMR with isotopic enrichment“, J. Phys. Chem. B, 108, (2004), 10872-10880
  11. G. Mountjoy, M. A. Holland, G. W. Wallidge, P.N. Gunawidjaja, M. E. Smith, D. M. Pickup and R. J. Newport, “Structural characterization of mixed (TiO2)x(ZrO2)y(SiO2)1-x-y sol-gels (0.05 <= x, y <= 0.15) by a combination of X-ray and spectroscopy techniques“, J. Phys. Chem. B, 107, (2003), 7557-7566
  12. P. N. Gunawidjaja, M. A. Holland, G. Mountjoy, D. M. Pickup, R. J. Newport and M. E. Smith, “The effects of different heat treatment and atmospheres on the NMR signal and structure of TiO2-ZrO2-SiO2 sol-gel materials“, Solid State Nucl. Magn. Reson., 23, (2003), 88-106
  13. G. Mountjoy, M. A. Holland, P.N. Gunawidjaja, D. M. Pickup, G. W. Wallidge, M. E. Smith and R. J. Newport, “Transition metal atom sites in ternary ZrO2-TiO2-SiO2 xerogels“, J. Sol-Gel Sci. Technol., 26, (2003), 137-141
  14. G. Mountjoy, M. A. Holland, P.N. Gunawidjaja, G. W. Wallidge, D. M. Pickup, R. J. Newport and M. E. Smith, “Comparing the atomic structures of binary MO2-SiO2 (M = Ti, Zr or Hf) xerogels“, J. Sol-Gel Sci. Technol., 26, (2003), 161-164
  15. B. Stevenson, P.N. Gunawidjaja, A.Y.H. L, I. Izquierdo-Barba, A. Garcia, D. Arcos, M. Vallet-Regi, M. Eden, “New Methods for Solid-State NMR Simulations and Studies of Bio-Mimetic Apatite-Formation from Mesoporous Bioactive Glasses“, WWMR 2010, Joint Euromar 2010 and 17th ISMAR Conference, Florence (2010)
  16. D. M. Pickup, F. E. Sowrey, L. J. Skipper, R. J. Newport, P.N. Gunawidjaja, K. O. Drake, M. E. Smith, P. Saravanapavan and L. L. Hench, “The structure of TiO2-SiO2 and CaO-SiO2 sol-gel glasses from neutron diffraction and solid state NMR using isotopic enrichment of titanium, calcium and oxygen“, NCM9, Corning, NY, (2004)
  17. P.N. Gunawidjaja, M.E. Smith, M.A. Holland, G. Mountjoy and R.J. Newport, “The Effect of Different Heat Treatment on the Evolution in Structural Properties of (TiO2)0.15(ZrO2)0.05(SiO2)0.80 Xerogels“, BRGS Meeting, London, (2001).
  18. G. Mountjoy, M.A. Holland, P.N. Gunawidjaja, G.W. Wallidge, R.J. Newport, M.E. Smith, “Transition Metal Sites in Ternary ZrO2-TiO2-SiO2 Xerogels“, 11th International Workshop on glasses, ceramics, hybrids and nanocomposites from gels (Sol-Gel 2001), Abano Terme, Italy, (2001).
  19. P.N. Gunawidjaja, R. Mathew, A.Y.H. Lo, I. Izquierdo-Barba, A. Garcia, D. Arcos, J. Grins, M. Vallet-Regi, and M. Edén “Biomimetic  Apatite Mineralization Mechanisms of Mesoporous Bioactive Glasses as Probed by Multinuclear 31P, 29Si, 23Na and 13C Solid-State NMR“, ENC 2010, Asilomar, U.S.A, (2011)
  20. P. Guerry, D.L. Carroll, P.N. Gunawidjaja, P. Bhattacharya, D. Carta, D.M. Pickup, I. Ahmed, E. Abouneel, P.A. Thomas, J.C. Knowles, R.J. Newport, M.E. Smith, “Solid State NMR as a probe of Inorganic Materials:Examples from Glasses and Sol-gels“, Magnetic Resonance in Material Science MRS Proceedings Volume 984E 0984-MM12-01 (2006)
  21. P.N. Gunawidjaja, M.E. Smith, D.M. Pickup and R.J. Newport, “Multinuclear Solid State NMR of the Structural development of Binary MO2-SiO2 -(M= Ti, Zr or Hf) Gel Materials“, Sol-Gel 2003, Sydney, (2003).
  22. P.N. Gunawidjaja, M.E. Smith, D.M. Pickup and R.J. Newport, “Multinuclear Solid State NMR of the Structural development of Silicate Based Sol-Gel Materials“, UK-Ireland Sol Gels Meeting, Cranfield, (2003).
  23. P.N. Gunawidjaja, M.E. Smith, M.A. Holland, D.M. Pickup, G. Mountjoy and R.J. Newport, “Multinuclear Solid State NMR of the Structural development of HfO2-SiO2 Gel Materials“, BRSG Meeting, London, (2002).
  24. P.N. Gunawidjaja, M.E. Smith, M.A. Holland, G. Mountjoy and R.J. Newport, “Applications of 17O MAS NMR to Characterising the Structure of Silicate-Based Sol-Gel Materials“, Rocky Mountain Conference on Analytical Chemistry, Denver, U.S.A., (2002).
  25. P.N. Gunawidjaja, M.E. Smith, M.A. Holland, G. Mountjoy and R.J. Newport, “The Effects of Different Heat Treatment and Atmosphere on the NMR signal and Structure of TiO2-ZrO2-SiO2 Xerogels“, IOM Materials Congress, London (2002).
  26. G. Mountjoy, M.A. Holland, P.N. Gunawidjaja, D.M. Pickup, G.W. Wallidge, M.E. Smith and R.J. Newport, “Comparing the Atomic Structures of Binary MO2-SiO2(M= Ti, Zr, Hf) Xerogels“.
    11th     International Workshop on glasses, ceramics, hybrids and nanocomposites from gels (Sol-Gel 2001), Abano Terme, Italy, (2001).