Christos Kontoyannis
Kontoyannis Christos, PhD
Professor of Pharmacy

University of Patras
Greece

Education

  • 1988 : PhD in Analytical Chemistry, Georgetown University, USA
  • 1985 : M.Sc. in Analytical Chemistry, Georgetown University, USA
  • 1983 : B. Sc. in Chemistry, University of Patras, Greece

Profile

Dr. Kontoyannis received his B.S. degree in Chemistry from University of Patras, Greece. He received his M.Sc in 1985 and his Ph.D. in Analytical Chemistry in 1988 from Georgetown University. Dr. Kontoyannis is currently Professor and Director of Pharmaceutical Analysis Laboratory at Department of Pharmacy, University of Patras. He has served as Chairman of the Department for four years and was member of the University Senate, Bioethics Committee and the Research Committee for eight years. He is reviewer for 18 international journals and member of the Editorial Board in two international journals. He is project reviewer for GSRT bilateral proposals and evaluator for FP7 projects (REA/EU). For the last 5 years consults pharmaceutical companies on characterization of polymorphic API in formulations and their patentability. He has been awarded 1 NATO research Grant, 5 EU and several national grants.

Research Interest

Drug Polymorphic Stability and Identification in Formulations; Development of non-destructive analytical methods using spectroscopic and electrochemical techniques. Applications in bio-ceramics, drugs, urinary stones, bones, liposomes, polymers etc.; New Diagnostic Tools for Bone Diseases.

Professional Activities:

9/83-6/88 Teaching & Research Fellow Georgetown University, Washington DC.
9/88-5/90 Military Service  
6/90-12/91 Post-Doctoral Fellow (ICE/HT-FORTH)  
1/1992-07/2009 Faculty Member, Department of Pharmacy  University of Patras
2009 - Present Professor, Department of Pharmacy  University of Patras

Teaching Experience

  • Undergrad. Courses: Separation Techniques & Electroanalytical Methods, Organic Spectroscopy, Physical Chemistry
  • Graduate Courses: Electrochemical Methods, Modern Instrumental Analysis

 

Honors & Awards

 

Publications

  1. P. Koutsoukos and C. Kontoyannis, "Precipitation of Calcium Carbonate in Aqueous Solution", J. Chem. Soc., Farad. Trans., 1, 80 (1984) 1181.
  2. P. Koutsoukos and C. Kontoyannis, "Prevention and Inhibition of Calcium Carbonate Scale", J Crystal Growth  69 1984 367.
  3. C. Kontoyannis and R. de Levie, "A Somewhat Unusual Desad Peak Observed with the Protein-Solubilizing Detergent CHAPS", J. Electroanal. Chem., 222 (1987) 271.
  4. C. Kontoyannis, L. Pospisil and R. de Levie, "On Irreversible Changes Upon Heating Lipid Solutions", J. Electroanal. Chem., 222 (1987) 277.
  5. C. Kontoyannis, R. Sridharan and R. de Levie, "A Sodium Effect on the Two-Dimensional Condensation of 6-Methyl-Uracil", J. Electroanal. Chem., 236 (1987) 309.
  6. C. Kontoyannis and R. de Levie, "Two-Dimensional Condensation of 2-Methyl-4,6-Dihydroxy-Pyrimidine at the Water-Mercury Interface", J. Electroanal. Chem., 249 (1988) 311.
  7. C.G. Kontoyannis and G. Carountzos, "Quantitative Determination of the Cubic to Monoclinic Phase Transformation in Fully Stabilized Zirconias by Raman Spectroscopy", J. Am. Ceram. Soc., 77 (1994) 2191.
  8. C.G. Kontoyannis and M. Orkoula, "Quantitative Determination of the Cubic, Tetragonal and Monoclinic Phases in Partially Stabilized Zirconias by Raman Spectroscopy", J. Materials Science, 29 (1994) 5316.
  9. C.G. Kontoyannis, "Quantitative Determination of CaCO3 and Glycine in Antacid Tablets by Laser Raman Spectroscopy", J. Pharm. Biomed. Anal., 13 (1995) 73.
  10. C.G. Kontoyannis and M. Orkoula, "Quantitative Non-Destructive Determination of Salicylic Acid Acetate in Aspirin Tablets by Raman Spectroscopy", Talanta, 41 (1994) 1981.
  11. C.G. Kontoyannis and V. Dracopoulos, "Influence of Fluoride Melts on Partially Stabilized ZrO2", High Temperature Science, 34 (1995) 59.
  12. C.G. Kontoyannis, N. Bouropoulos and P. Koutsoukos, "Quantitative Analysis of Impurities in ε-Caprolactam by Raman Spectroscopy", The Analyst, 120 (1995) 347.
  13. C.G. Kontoyannis, "Pyrolitic Boron Nitride Coated Graphite as Container of Reference Electrodes for Molten Fluorides" Electrochimica Acta, 40 (1995) 2547.
  14. C.J.Stournaras, Athena Tsetsekou, C. Kontoyannis and George Carountzos, "Corrosion of Yttria-Fully Stabilized Zirconias from Molten Fluorides", J. Mater. Sc., 30 (1995) 4373.
  15. C. Kontoyannis George Carountzos, C.J.Stournaras, and Athena Tsetsekou, «Searching for the Stabilized Zirconia Exhibiting Best Corrosion Resistance in Fluoride Melts», J. Mater. Sc. Letters, 15 (1996) 222.
  16. Ν. Bouropoulos, C.G. Kontoyannis and P.G. Koutsoukos, «Nucleation Kinetics of ε-Caprolactam Melts in the Presence of Water Impurity», J. Crystal Growth, 171 (1997) 538.
  17. C.G. Kontoyannis, N. Bouropoulos and P.G. Koutsoukos, «Use of Raman Spectroscopy for the Quantitative Analysis of Calcium Oxalate Hydrates: Application to Urinary Stones», Applied Spectroscopy, 51 (1997) 64.
  18. C.G. Kontoyannis, M. Orkoula and P. Koutsoukos, "Quantitative Analysis of Sulphated Calcium Carbonates Using Raman Spectrometry and Xray Powder Diffraction", The Analyst, 122 (1997) 33.
  19. Ν. Bouropoulos, C.G. Kontoyannis and P.G. Koutsoukos, «Influence of Operational Variables on the Crystallization of ε-Caprolactam from Melts», J. Crystal Growth, 177 (1997) 119.
  20. G. Carountzos, C. Kontoyannis* and T. Ostvold. «Raman Spectral Study of WCl6 in Alkali Chloride Melts», Ber. Bunsenges. Phys. Chem., 101 (1997) 847.
  21. C.G. Kontoyannis, N. Bouropoulos and P.G. Koutsoukos, «Urinary Stone Layer Analysis of Mineral Components by Raman Spectroscopy, IR Spectroscopy and X-Ray Powder Diffraction. A Comparative Study», Applied Spectroscopy, 51 (1997) 1205.
  22. C.G. Kontoyannis, N. Bouropoulos and P.G. Koutsoukos, «Raman Spectroscopy: A Tool for the Quantitative Analysis of Mineral Components of Solid Mixtures. The Case of Calcium Oxalate Monohydrate and Hydroxyapatite», Vibrational Spectroscopy, 15 (1997) 53.
  23. C.G. Kontoyannis, S. Antimisiaris and D. Douroumis, «Quantitative Determination of the Non Entrapped Chlorothiazide in the Presence of Liposomes Using Differential Pulse Polarography», Talanta, 48 (1999) 979.
  24. C.G. Kontoyannis, S. Antimisiaris and D. Douroumis, «Simultaneous quantitative Determination of the Diazepam and Liposomes Using Differential Pulse Polarography», Analytica Chimica Acta, 391 (1999) 83.
  25. C. Kontoyannis, N. Bouropoulos, H. Dauaher, C. Bouropoulos and N. Vagenas, “Analysis of Prostatic Stent Encrustation and of Entrapped Urinary Stone Using FT-IR and FT-Raman Spectroscopy”, Applied Spectroscopy, 54 (2000) 225.
  26. C. Kontoyannis, and N. Vagenas, “Calcium Carbonate Phase Analysis Using XRD and FT-Raman Spectroscopy”, The Analyst, 125 (2000) 251.
  27. C.G. Kontoyannis and D. Douroumis, «Determination Of Liposomes Drug Retention Capacity Using Differential Pulse Polarography: The Case Of Chlorothiazide», Analytica Chimica Acta, 409 (2000) 99.
  28. C. Kontoyannis, and N. Vagenas, “FΤ-Raman Spectroscopy: A Tool For Monitoring The Demineralization Of Bones”, Applied Spectroscopy, 53 (2000) 1605.
  29. C. Hasiotis, V. Deimede and C. Kontoyannis, "New Polymer Electrolytes Based on Blends of Sulfonated Polysulsfones With Polybenzimidazole", Electrochimica Acta, 46 (2001) 2401.
  30. C. Hasiotis, Li Qingfeng, V. Deimede, J. K. Kalitsis, C. G. Kontoyannis and N. J. Bjerrum, "Development and Characterization of Acid-Doped Polybenzimidazole/Sulfonated Polysulfone Blend Polymer Electrolytes for Fuel Cells", Journal of the Electrochemistry Society, 148 (2001) Α513.
  31. E. Stefanidaki, C. Hasiotis and C. Kontoyannis, “ Electrodeposition of Neodymium from LiF–NdF3–Nd2O3 Melts”, Electrochimica Acta, 46 (2001) 2665.
  32. C.G. Kontoyannis and D. Douroumis, «A Polarographic Methodology for Continuous Non-Destructive Monitoring of Drug Release from Liposomes”, Journal of Liposome Research, 11 (2001) 255
  33. C.G. Kontoyannis and D. Douroumis, "Release Study of Drugs from Liposomic Dispersions Using Differential Pulse Polarography", Analytica Chimica Acta, 449 (2001) 135.
  34. O. Gortzi, E. Papadimitriou, C. Kontoyannis, S. Antimisiaris and P. Ioannou, “Arsonoliposomes, A Novel Class of Arsenic Containing Liposomes: Effect of Palmitoyl-Arsonolipid Containing Liposomes on the Viability of Cancer and Normal Cells in Culture”, Pharmaceutical Research, 19 (2002) 79.
  35. E. Stefanidaki, G. Photiadis, C. Kontoyannis, A. Vik and T. Østvold “Oxide Solubility and Raman Spectra of NdF3 – LiF – KF - MgF2 - Nd2O3 Melts”, J. Chem Soc., Dalton Trans.,  (11): (2002) 2302
  36. Li Qingfeng, H. A. Hjuler, C. Hasiotis, J. K. Kallitsis, C. G. Kontoyannis and N. J. Bjerrum  “A Quasi-Direct Methanol Fuel Cell System Based on Blend Polymer Membrane Electrolytes”, Electroch. and Solid State Letters, 5 (2002) A125.
  37. N. Vagenas, A. Gatsouli, C. Kontoyannis, “Quantitative Analysis of Synthetic Calcium Carbonate Polymorphs Using FT-IR Spectroscopy”, Talanta, 59 (2003) 831.
  38. N. Vagenas, C. Kontoyannis, “A Methodology for Quantitative Determination of Minor Components in Minerals Based on FT-Raman Spectroscopy. The Case of Calcite in Dolomitic Marble”, Vibrational Spectroscopy, 32 (2003) 261.
  39. N. Charalampopoulos, K. Avgoustakis, C. Kontoyannis " Differential Pulse Polarography: A Suitable Technique for Monitoring Drug Release from Polymeric Nanoparticle Dispersions” Analytica Chimica Acta, 491 (2003) 57.
  40. V. Soare, M. Burada, T. Ostvold, C. Kontoyannis, E. Stefanidaki, “Study of the Mf-Nd Alloy Obtained by Electrolysis in Molten Oxyfluoride Media”, J. Min. Met. B, 39 (2003) 209.
  41. S. Panteliou, A. Xirafaki, E. Panagiotopoulos, J. Varakis, N. Vagenas, C. Kontoyannis “Modal Damping for Monitoring Bone Integrity and Osteoporosis”, J. Biomechanical Engineering, 126 (2004) 1.
  42. M. Orkoula, C. Kontoyannis, C. Markopoulou and J.E. Koundourellis, “Development of Methodologies Based on HPLC and Raman Spectroscopy for Monitoring the Stability of Lovastatin in Solid State in the Presence of Gallic Acid”, J. Pharm. Biomed. Anal., 35 (2004) 1011.
  43. V.Soare, C. Gurgu, M. Burada, T.Østvold and C.Kontoyannis, “The Production of a Mg –Nd Alloy By Direct Electrolysis from a Oxifluoride Melt”, Can. Metall. Quart., 45 (2006) 153.
  44. M.G. Orkoula, C.G. Kontoyannis, C.K. Markopoulou and J.E. Koundourellis, “Quantitative Analysis of Liquid Formulations Using FT-Raman Spectroscopy and HPLC. The Case of Diphenhydramine Hydrochloride in Benadryl”, J. Pharm. Biomed. Anal., 41 (2006) 1406.
  45. I. Karabas, M.G. Orkoula, C.G. Kontoyannis, “Analysis and Stability of Polymorphs in Tablets: The Case of Risperidone”, Talanta, 71 (2007) 1382.
  46. M. Orkoula, C. Kontoyannis, C. Markopoulou and J.E. Koundourellis, “Validation οf a Direct, Non-Destructive Quantitative Analysis, of Amiodarone Hydrochloride in Angoron® Formulations Using FT-Raman Spectroscopy”, Talanta, 73 (2007) 258
  47. D. Skorda and C. Kontoyannis, "Identification and Quantitative Determination of Atorvastatin Calcium Polymorph in Tablets Using FT-Raman Spectroscopy” Talanta 74 (2008) 1066.
  48. C. Markopoulou and J.E. Koundourellis, M. Orkoula, C. Kontoyannis, “Quantitative non destructive methods for the determination of ticlopidine in tablets using reflectance NIR and FT-Raman spectroscopy”, Applied Spectroscopy, 62 (2008) 251.
  49. M. Orkoula, C. Kontoyannis, “Non-Destructive Quantitative Analysis of Risperidone in Film-Coated Tablets” J. Pharm. Biomed. Anal., 47 (2008) 631.
  50. I. Zacharaki, C. Kontoyannis, A. Lycourghiotis and C. Kordulis "The influence of calcination on the size of nanocrystals, porous structure and acid-base properties of mesoporous anatase used as catalytic support" Colloids and Surfaces A: Physicochemical and Engineering, 324 (2008) 208-216.
  51. I. Zacharaki, C. Kontoyannis, S. Boghosian, A. Lycourghiotis and C. Kordulis Cobalt oxide supported on alumina catalysts prepared by various methods for use in catalytic afterburner of PEM fuel cell, Catalysis Today, 143 (2009) 38-44. 
  52. I. Karabas, M.G. Orkoula, C.G. Kontoyannis, “Effect of hydrazine based deproteination protocol on bone mineral crystal structure”, J. Mater. Sc.: Mater Med, 23 (2012) 1139-1148.
  53. Malvina G. Orkoula, Martha Z. Vardaki and Christos G. Kontoyannis “Study of Bone Matrix Changes Induced by Osteoporosis in Rat Tibia Using Raman Spectroscopy”, Vibrational Spectroscopy, 63 (2012) 404-408.
  54. S. Panteliou, E. Panagiotopoulos, J. Varakis, M. Orkoula and C. Kontoyannis “Measurement of Modal Damping Factor to Monitor Bone Integrity and Osteopenia: A Study on Sheep Trochanters” Bioengineering & Biomedical Science, 2:3 (2012) 118 (1-6).
  55. I. Karabas and Christos G. Kontoyannis “Characterization of calcium phosphates mixtures”, Vibrational Spectroscopy, 64 (2013) 126-133.
  56. I. Karabas, M.G. Orkoula, C.G. Kontoyannis, “Calibration models for the quantitative analysis of bone (collagen and bioapatite) using raman spectroscopy”, J. Biophotonics, 6 (2013) 573-586.
  57. Argyrios N. Nochos, Christos Kontoyannis, George G. Voyiatzis, “Incorporation of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) in Poly(propylene) Matrices for Wound Healing Applications. The case of Ibuprofen” Macromol. Symp. 331-332 (2013) 115–122 (doi 0.1002/masy.201300093).
  58. Mohamed Ahmed S. El Mubarak, Fotini N. Lamari, Christos Kontoyannis, Simultaneous determination of allantoin and glycolic acid in snail mucus and cosmetic creams with high performance liquid chromatography and ultraviolet detection” Journal of Chromatography A, Journal of Chromatography A, 1322 (2013) 49-53 (http://dx.doi.org/10.1016/j.chroma.2013.10.086).
  59. Malvina G. Orkoula and Christos G. Kontoyannis “Raman Spectroscopy for the Study of Biological Organisms (Biogenic Materials and Biological Tissues): A Valuable Analytical Tool”, Spectroscopy Europe, 26 (2014) 18-21. (Invited-review article)

Chapters in Books

  1. A. Kladi, P. Klepetsanis, T. Ostvold, C. Kontoyiannis and P. Koutsoukos, “Crystal Growth of Calcium Carbonate in Seawater. The Effect of Temperature and of the presence of Inhibitors", pp. 85-106 in “Advances in Crystal Growth Inhibition Technologies”, Z.Amjad (Ed.), New York, Kluwer Academic/Plenum Publishers, 2000.
  2. P.Klepetsanis, A. Kladi, T. Ostvold, C. Kontoyiannis, P. Koutsoukos, Z. Amjad and M. Reddy, “The Inhibition of Calcium Carbonate Formation in Aqueous Supersaturated Solutions. Spontaneous Precipitation and Seeded Crystal Growth" pp. 123-138 in “Advances in Crystal Growth Inhibition Technologies”, Z.Amjad (Ed.), Kluwer Academic/Plenum Publishers, 2000.

Other Publications

  1. C. Kontoyannis, "Two-dimensional condensation of 6-methyl-uracil and 2-methyl-4,6-dihydroxy-pyrimidine at the water-mercury interface", Ph.D. Thesis, Georgetown University, 1988.
  2. Proceedings of the 7th Eurocare-Euromarble, EU 496, ISBN 960-7839-00-5. Edited by P. Koutsoukos and C. Kontoyannis. Institute of Chemical Engineering and High Temperature Chemical Processes, Patras, Greece, 1997.
  3. C. Kontoyannis, "Experiments in Instrumental Analysis", (in Greek) University of Patras, 1999.
  4. C. Kontoyannis and P. Klepetsanis, "Experiments in Physical Chemistry", (in Greek) University of Patras, 1999.
  5. Proceedings of International George Papatheodorou Symposium, ISBN 960-7839-01-3. Edited by S. Boghosian, C. Kontoyannis and G. Voyiatzis. Institute of Chemical Engineering and High Temperature Chemical Processes, Patras, Greece, 1999.
  6. Book of Abstracts of the 14th Conference of the European Colloid and Interface Society, ISBN 960-7839-02-1. Edited by C. Kontoyannis and P. Koutsoukos. Institute of Chemical Engineering and High Temperature Chemical Processes, Patras, Greece, 2000.
  7. Book of Abstracts of the 1st Bioscience Conference University of Patras, Patras, Greece, 2005.
  8. Book of Abstracts of the 2nd Bioscience Conference University of Patras, Patras, Greece, 2007.

 

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