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BIOMIMETICS PROGRAMME
Responsible Researcher: Dr A. Xenakis
Complete list of publications 

Á. Theses

1. T.Valis, (1991) "Bioconversion of hydrophobic substances in heterogeneous systems". Chemical Engineering Dept., National Technological University of Athens

2. V.Papadimitriou. (1995) "Enzymatic studies in microemulsions". Biology Dept. Athens University

3. H.Stamatis (1996) '' Enzymatic transformation of amphiphilic substrates in microemulsions '' Chemistry Dept. School of Sciences, Patras University.

4. S.Avramiotis (1997) "Structural studies of microemulsions in the presence of biological macromolecules. Polytechnic School, Patras University

5. Ì.Georgalaki (1999) '' Enzymatic activities in olives and olive oil''. Dept of Agricultural Industries, Athens Agricultural University

6. C.Karapitta (2001).''Study of chemical modifications of enzymes for the development of immunoassays'' Chemical Engineering Dept., National Technological University of Athens

Â. Research Papers

  1. C.Cazianis, A.Xenakis & A.Evangelo­poulos (1987) "Spin-label studies of glycogen phosphory­lase hosted in microemulsion droplets" Biochem.Bio­phys.Res.Commun. 148, 1151-7.
  2. A.Xenakis, T.Valis & F.Kolisis (1988) "Bioconversion of hydrophilic and hydrophobic compounds by enzyme sys­tems I". "Biotechnolo­gy Action Program", Ed. E.Magnien, Comission of the European Communities, 2, 303-7.
  3. A.Xenakis, T.Valis, G.Kondelia & F.Kolisis (1988) "Bioconversion of hydrophilic and hydrophobic compounds by enzyme systems II". "Biotec­hnology Action Program", Ed. E.Magnien, Comission of the Euro­pean Com­munities, 2, 445-50.
  4. A.Xenakis & C.T.Cazianis (1988) "Solubilization of Phosphorylase into microemul­sion droplets. An ESR study. Progr.Colloid Polym.Sci., 76, 159-64.
  5. A.Xenakis, T.P.Valis & F.Kolisis (1989) "Use of microemulsion systems as media in heterogeneous enzymic cata­lysis". Progr.Colloid Polym. Sci., 79, 88-93.
  6. C.T.Cazianis & A.Xenakis (1989) "Different spin probe positions related to structural changes of nonionic microemulsions". Progr.Colloid Polym.Sci., 79, 214-217.
  7. A.Xenakis (1989) ''Enzymatic transesterification of fats and oils in microemulsions''. Proc. 2d Panhellenic congress of Food Science & Technology, 343-351, Athens.
  8. A.Xenakis, T.Valis & F.Kolisis (1990) "Reverse micellar enzymology. Lipase catalyzed hydro­ysis of triglycer­ides and synthesis of specific esters". Biochem.Biophys.Newslett., 30, 23-25
  9. A.Xenakis (1990) "Microemulsions É. Brief presentation". Rev.Clin. Pharma­col. Pharmacokin., 9, 15-24.
  10. A.Xenakis (1990) "Microemulsions ÉÉ. A novel environment for enzymatic studies". Rev. Clin. Pharmacol. Pharmacokin., 9, 25-40.
  11. A.Xenakis, C.T.Cazianis & A. Malliaris (1990) "Nonionic microemulsions as model of biosystems studied by probing techniques". Progr.Colloid Polym.Sci., 81, 295.
  12. D.Leonidas, N.G.Oikonomakos, A.C. Pa­pageorgiou, A.Xenakis, C.T.Cazianis & F.Bem. (1990) "The ammonium sulfate activation of Phosphorylase b". FEBS Lett., 261, 23-27.
  13. F.Kolisis, T.Valis & A.Xenakis (1990) "Lipase catalyzed esterification of fatty acids in nonionic microemul­sions". An. New York Acad. Sci., 613, 674-680.
  14. S.Modes, P.Lianos & A.Xenakis (1990) "Relation of the fractal behavior of luminescence quenching with electric percolation in water-in-oil microemulsions" J.Phys.Chem. 94, 3363-5
  15. T.G.Sotiroudis & A.Xenakis (1990) "PEST sequences present in phosphorylase kinase". Biochem.Int., 21, 941-947.
  16. A.Xenakis, T.P.Valis & F.Kolisis (1991) "Microemulsions as a tool for enzymatic studies. The case of Lipase". Progr.Colloid Polym. Sci., 84, 508-512.
  17. T.Valis, A.Xenakis & F.N.Kolisis (1992) "Comparative studies of Lipase from Rhizopus delemar in various microemulsion systems" Biocatalysis, 6, 267-279.
  18. A.Xenakis, C.T.Cazianis & A.Malliaris (1992) "Study of the transition between different structures of some nonionic microemulsion systems". Colloids Surf. 62, 315-9.
  19. G.Nika, C.M.Paleos, P.Dais, A.Xenakis & A.Malliaris (1992) "Aggregational behavior of polymeric micelles of methylacrylate functionalized quaternary ammonium salts". Progr. Colloid Polym.Sci., 89, 122-124.
  20. H.Stamatis, A.Xenakis, F.N.Kolisis, H.Sztajer & U.Menge (1992) "Studies on the specificity of Penicillium simplicissimum lipase catalyzed esterification reactions in microemulsions", in Biocatalysis in Non-Conventional Media, J.Tramper et al.(eds) Elsevier, Amsterdam, 733-8.
  21. V.Papadimitriou, A.Xenakis & P.Lianos (1993) "Electric percolation of enzyme containing microemulsions", Langmuir, 9, 912-915.
  22. H.Stamatis, A.Xenakis, M.Provelegiou & F.N.Kolisis (1993) "Esterification reactions catalyzed be lipases in microemulsions. The role of enzyme localization in relation to its selectivity" Biotechnol. Bioeng., 42, 103-110.
  23. A.Xenakis, V.Papadimitriou & P.Lianos (1993) "Enzyme induced percolation of w/o microemulsions", Progr.Colloid Polym.Sci., 93, 370-372.
  24. H.Stamatis, A.Xenakis & F.N.Kolisis (1993) "Enantiomeric specificity of a lipase from Penicillium simplicissimum in the esterification of menthol in microemulsions", Biotechnol. Lett. 15, 471-476.
  25. H.Stamatis, A.Xenakis, U.Menge & F.N.Kolisis (1993) "Kinetic study of lipase catalyzed esterification reactions in microemulsions", Biotechnol. Bioeng., 42, 931-937.
  26. A.Xenakis, H.Stamatis, A.Malliaris & F.N.Kolisis (1993) "Effect of alcohols on the structure of AOT reverse micelles with respect to different enzyme activity", Progr. Colloid Polym. Sci., 93, 373-376.
  27. V.Papadimitriou, A.Xenakis & A.E.Evangelopoulos (1993) "Proteolytic activity in various w/o microemulsions as related to the polarity of the reaction medium", Colloids Surf. B. Biointerfaces, 1, 295-303.
  28. H.Stamatis, A.Xenakis, U.Bornscheuer, T.Sheper, U.Menge & F.N.Kolisis (1993) "Pseudomonas cepacia lipase: esterification reactions in AOT microemulsion systems" Biotechnol. Lett. 15, 703-708.
  29. A.Kokkinia, C.M.Paleos, A.Malliaris & A.Xenakis (1993) "Self organization in water of bolaform detergents bearing two phosphate groups", Progr.Colloid Polym.Sci., 93, 302-304.
  30. U.Bornscheuer, H.Stamatis, A.Xenakis, T.Yamane and F.N.Kolisis (1994) "A comparison of different strategies for lipase-catalyzed synthesis of partial glycerides" Biotechnol. Lett. 16, 697-702.
  31. H.Stamatis, A.Xenakis, F.N.Kolisis & A.Malliaris (1994) "Lipase localization in w/o microemulsions studied by fluorescence energy transfer" Progr.Colloid Polym.Sci. 97, 253-255.
  32. V.Papadimitriou, C.Petit, A.Xenakis & M.P.Pileni (1994) "Structural modifications of reverse micelles due to enzyme incorporation studied by SAXS" Progr.Colloid Polym. Sci. 97, 226-228.
  33. H.Stamatis, A.Xenakis, E.Dimitriadis and F.N.Kolisis (1995) "Catalytic behavior of Pseudomonas cepacia lipase in w/o microemulsions" Biotechnol.Bioeng. 45, 33-41.
  34. V.Papadimitriou, C.Petit, G.Cassin, A.Xenakis and M.P.Pileni (1995) "Lipase catalyzed esterification in AOT reverse micelles: a structural studies" Adv. Colloid Interface Sci., 54, 1-16.
  35. H.Stamatis, A.Xenakis and F.N.Kolisis (1995) "Studies on Enzyme Reuse and Product Recovery in Lipase-Catalyzed Reactions in Microemulsions" An.New York Acad.Sci. 750, 237-241.
  36. A.Ballesteros, U.Bornscheuer, A.Capewell, D.Combes, J.S.Condoret, K.Koenig, F.N. Kolisis, A.Marty, U.Menge, T.Scheper, H.Stamatis & A.Xenakis (1995) "Enzymes in non-conventional phases" Biocatalysis Biotransformations, 13, 1-42.
  37. S.Avramiotis, A.Xenakis, & P.Lianos (1996) "Lecithin w/o microemulsions as a host for trypsin. Enzyme activity and luminescence decay studies" Progr.Colloid Polym.Sci. 100, 286-289.
  38. S.Avramiotis, H.Stamatis, F.N.Kolisis, P.Lianos & A.Xenakis (1996) "Structural studies of lecithin and AOT based w/o microemulsions, in the presence of lipase" Langmuir, 12, 6320-6.
  39. V.Papdimitriou, A.Xenakis, C.T.Cazianis, H.Stamatis, M.R.Egmond & F.N.Kolisis (1996) EPR studies of cutinase in microemulsions" Ann. New York Acad.Sci. 799, 275-280.
  40. J.B. Macris, H. Stamatis and F.N. Kolisis. (1996) Microemulsions as a tool for the regioselective lipase-catalysed esterification of aliphatic diols. Appl. Microb.Biotechnol.. 46, 521-524.
  41. H. Stamatis, J. Macris and F.N. Kolisis. (1996) Esterification of hydrophilic diols catalysed by lipases in microemulsions. Biotechnol. Letters, 18, 541-546.
  42. V. Papadimitriou, A. Xenakis, C.T. Cazianis & F.N. Kolisis (1997) "Structural and catalytic aspects of cutinasein w/o microemulsions" Colloid Polym.Sci., 275, 609-616.
  43. S. Avramiotis, H. Stamatis, F.N. Kolisis & A. Xenakis. (1997) "Pseudomonas cepacia lipase localization in lecithin and AOT w/o microemulsions. A fluorescence energy transfer study" Progr.Colloid Polym.Sci. 105, 180-183.
  44. V.Bekiari, P.Lianos, S.Avramiotis & A.Xenakis (1997) " Photophysical studies of aerosol-OT films loaded with biological macromolecules and made from reverse micelles." Progr. Colloid Polym.Sci.105, 109-112.
  45. S.Avramiotis, P.Lianos & A.Xenakis (1997) "Trypsin in lecithin based w/o microemulsions. Fluorescence and enzyme activity studies" Biocatalysis Biotransformations, 14, 299-316.
  46. S.Avramiotis, V.Bekiari, P.Lianos & A.Xenakis (1997) "Structural and dynamic properties of lecithin-alcohol based w/o microemulsions. A luminescence quenching study." J. Colloid Interface Sci. 194, 326-331.
  47. S.Avramiotis, M.D.Georgalaki, C.T.Cazianis, T.G.Sotiroudis & A.Xenakis, "Free radicals in virgin olive oil: a spin trapping EPR study" in "Lipidforum", pp.61-64, Bergen, 1997.
  48. V. Sereti, H. Stamatis, F.N. Kolisis. (1997) Improved stability and reactivity of Fusarium solani cutinase in supercritical CO2, Biotechnol.Techn.11, 661-5.
  49. C. Tsitsimpikou, H. Stamatis, V. Sereti, H. Daflos and F.N. Kolisis. (1998) Acylation of glucose catalysed by lipases in supercritical carbon dioxide. J. Chem.Technol.Biotechnol., 71, 309-314.
  50. H. Stamatis, P. Christakopoulos, D. Kekos, B.J. Makris, F.N. Kolisis. (1998) Studies on the synthesis of short-chain geranyl esters catalyzed by Fusarium oxysporum esterase in organic solvents. J.Mol.Catalysis B:Enzym., 4, 229-236.
  51. P. Christakopoulos, B. Tzalas, D. Mamma, H. Stamatis, Liadakis G.N., C. Tzia, D. Kekos, F.N. Kolisis, B.J. Makris. (1998) Production of an esterase from Fusarium oxysporum catalysing transesterification reactions in organic solvents. Proc. Biochem., 33(5), 585-594.
  52. M.D.Georgalaki, T.G.Sotiroudis & A.Xenakis (1998) "The presence of oxidizing enzyme activities in virgin olive oil" J.Am.Chem.Oil Soc. 75, 155-9.
  53. S.Avramiotis, V.Papadimitriou, C.T.Cazianis & A.Xenakis (1998) "EPR studies of proteolytic enzymes in microemulsions" Colloids Surfaces.A: Physichochemical & Engineerinig Aspects. 144, 295-304.
  54. M.D.Georgalaki, A. Bachmann, T.G.Sotiroudis, A.Xenakis, A. Porzel and I. Feussner (1998) "Characterization of a 13-lipogygenase from olive oil and oil bodies of olive endosperms" FETT/Lipid, 100, 554-560.
  55. M.D.Georgalaki, A.Boehm, T.G.Sotiroudis, A.Xenakis & I.Feussner (1998) "An Active Linoleate 13-Lipoxygenase is Found in Virgin Olive Oil", Advances in Plant Lipids Research. J.Sanchez, E.Carda-Olmedo, E.Martinez-Force (eds.) pp. 696-698, Sevilla.
  56. H.Stamatis, & A.Xenakis (1999) "Biocatalysis using microemulsion-based polymer gels containing lipase" J. Mol.Catalysis B: Enzymatic, 6 399-406.
  57. H.Stamatis, A.Xenakis & F.N.Kolisis (1999) "Biorganic reactions in microemulsions: the case of lipase" Biotechnol. Advances. 17, 293-318.
  58. A.Xenakis & H. Stamatis (1999) "Lipase immobilization on microemulsion-based polymer gels" Progr.Colloid Polym. Sci. 112, 132-5.
  59. S.Avramiotis, C.T.Cazianis & A.Xenakis (1999) "Interfacial Properties of Lecithin Microemulsions in the presence of Lipase. A Membrane Spin-Probe Study" Langmuir, 15, 2375-9.
  60. H.Stamatis, A.Xenakis & F.N.Kolisis (1999) "Biorganic reactions in microemulsions: the case of lipase" Biotechnol. Advances. 17, 293-318
  61. H. Stamatis, A. Xenakis & F.N. Kolisis (1999) "Synthesis of Esters Catalyzed by Lipases in w/o Microemulsions", Methods in Biotechnology, in press.
  62. H.Stamatis, & A.Xenakis (1999) "Biocatalysis using microemulsion-based polymer gels containing lipase" J. Mol.Catalysis B: Enzymatic, 6, 399-406.
  63. E. Protopapa, H. Geissert, A. Xenakis, S. Avramiotis, N. Stavrianeas, C.E. Sekeris, J. Schenkel & A. Alonso (1999) "The effect of proteolytic enzymes on skin hair follices of trangenic mice expressing the lac z-protein in cells of the bulge region", J.Europ.Acad. Dermatol. Venerol. 13, 28-35.
  64. A.Pastou, H.Stamatis & A.Xenakis (1999) "Microemulsion-based organogels containing lipase: Application in the synthesis of esters" Progr.Colloid Polym. Sci., 115, 00-04.
  65. S.Avramiotis, C.Cazianis & A.Xenakis (1999) "Membrane spin-probe in lecithin and AOT water-in-oil microemulsions". Progr. Colloid Polym. Sci., 115, 00-05.
  66. H. Stamatis, A. Xenakis & F.N. Kolisis (2001) ''Synthesis of Esters Catalyzed by Lipases in w/o Microemulsions'', In: Enzymes in Nonaqueous Solvents : Methods and Protocols (Methods in Biotechnology, Vol 15) E.N. Vulfson, P.J. Halling, H.L. Holland (Eds). Humana Press, Totowa, NJ. pp. 331-338.
  67. C.Karapitta, A.Xenakis, A.Papadimitriou, T.G.Sotiroudis (2001) A new homogeneous enzyme immunoassay for thyroxine using glycogen phosphorylase b-thyroxine conjugates. Clin.Chim.Acta, 308, 99-106.
  68. C.Karapitta, T.G.Sotiroudis, A.Papadimitriou, A.Xenakis (2001) ''A homogeneous enzyme immunoassay for triiodothyronine in serum''. Clin.Chem., 47, 569-574.
  69. E.­Karavas, E.Georgarakis, D.Bikiaris, T.Thomas, V.Catsos, A.Xenakis (2001) ''Hydrophilic matrices as carriers in felodipine solid dispersion systems''. Progr. Colloid Polym. Sci. 118, 149-152
  70. D. Skoutas, D. Haralabopoulos, S. Avramiotis, T.G. Sotiroudis, A. Xenakis (2001) ''Virgin Olive Oil: Free Radical Production Studied with Spin Trapping EPR Spectroscopy'' J. Am. Oil Chem. Soc. 78, 1121-5.
  71. C. Delimitsou, M. Zoumpanioti, A. Xenakis, H. Stamatis (2002) ''Activity and stability studies of mucor miehei lipase immobilized in novel microemulsion based organogels''. Biocatalysis and Biotransformations, 20, 319-327.
  72. T.G. Sotiroudis, S.A. Kyrtopoulos, A. Xenakis, G.T. Sotiroudis (2003) ''Chemopreventive potential of minor components of olive oil against cancer'' Ital. J. Food Sci. 15, 169-185
  73. E. Tzika, V. Papadimitriou, T.G. Sotiroudis, A. Xenakis (2004) ''Chemical and enzymatic oxidation of oleuropein: an EPR study'' Chem.Phys.Lipids. 130, 61.
  74. M. Mastorakis, T.G. Sotiroudis, A. Xenakis, & S. Miniadis-Meimaroglou, (2004) ''Spectrophotometric analysis of enzymic and non-enzymic oxidation of oleuropein'' Chem.Phys.Lipids. 130, 58.
  75. E. Hatzara, E.Karatza, S. Avramiotis. A. Xenakis (2004) ''Spectroscopic mobility probing studies of lecithin organogels'' Progr. Colloid Polym. Sci., 123, 94-97
  76. M.Zoumpanioti, E.Karavas, C.Skopelitis, H.Stamatis, A. Xenakis. (2004) ''Lecithin organogels as model carriers of pharmaceuticals'' Progr. Colloid Polym. Sci., 123, 199-202.
  77. P. Dominguez de Maria, H. Stamatis A. Xenakis J. V. Sinisterra (2004) ''Lipase Factor (LF) as a characterization parameter to explain the catalytic activity of crude lipases from Candida rugosa, ATCC 14830, free or immobilized in microemulsion based organogels'' Enzym. Microb. Technol.. 35, 277-283.
  78. P. Dominguez de Maria, H. Stamatis A., Xenakis, J. V. Sinisterra (2004) ''Unexpected reaction profile observed in the synthesis of propyl laurate when using Candida rugosa lipases immobilized in microemulsions based organogels'' Biotechnol. Lett. 26: 1517-20.
  79. M. Zoumpanioti, M. Karali, A. Xenakis & H. Stamatis, (2005) ''Lipase biocatalytic processes in surfactant free microemulsion - like ternary systems and related organogels''. Enzym. Microb. Technol.. in press
  80. V. Papadimitriou, T.G. Sotiroudis, and A. Xenakis (2005) ''Olive oil microemulsions as a biomimetic medium for enzymatic studies. Oxidation of oleuropein'' J.Am.Oil Chem. Soc. In press.
  81. T.G. Sotiroudis, G.T. Sotiroudis, N. Varkas and A. Xenakis (2005) ''Interfacial properties of virgin olive oil-in-water emulsions stabilized by endogenous amphiphiles'' J.Am.Oil Chem. Soc. In press


C. Patents

  1. Å.Ðñùôüðáððá, Á.ÎåvÜêçò, Ó.Áâñáìéþôçò & Ê.Å.ÓÝêåñçò (1996) ''Ìéêñoãáëáêôþìáôá ëåêéèßvçò ðåñéÝ÷ovôá ðñùôåoëõôéêÜ Ývæõìá á-÷õìoèñéøßvç Þ èñõøßvç êáé ìÝèoäoò ìüvéìçò åvæõìéêÞò áðoôñß÷ùóçò'' ÊáôÜèåóç Ï.Â.I. No 060100168/1996
  2. Xenakis A., Sotiroudis T.G. & Karapitta C. (2000) ''Development of a homogenous immunoenzymatic method for the production of clinical laboratory kits for the determination of thyroxine and triiodothyronine in human sera, using glycogen phosphorylase b conjugated with polyiodothyronines. Greek Patent Office. ÏÂÉ 20000100255
  3. Protopapa, E.; Xenakis, A.; Avramiotis, S., Sekeris, C. (2001) ''Lecithin-based microemulsions containing proteolytic enzymes and method for permanent enzymic depilation'' United States Patent, 6,203,791
  4. Protopapa, E.; Xenakis, A.; Avramiotis, S., Sekeris, C. (2003) ''Lecithin-based microemulsi­ons containing proteolytic enzymes and method for permanent enzymic depilation''. European Patent 0955991/05-03-2003, PCT Int. Appl. WO 9744005 A1. Designated states: W: AL, AU, BA, BB, BG, BR, CA, CN, CU, CZ, EE, GE, HU, IL, IS, JP, KP, KR, LC, LK, LR, LT, LV, MG, MK, MN, MX, NO, NZ, PL, RO, SG, SI, SK, TR, TT, UA, US, UZ, VN, AM, AZ, BY, KG, KZ, MD, RU, TJ, TM; RW: AT, BE, BF, BJ, CF, CG, CH, CI, CM, DE, DK, ES, FI, FR, GA, GB, GR, IE, IT, LU, MC, ML, MR, NE, NL, PT, SE, SN, TD, TG.