V. Papageorgiou

PUBLICATIONS IN INTERNATIONAL JOURNALS

1. V.P. Papageorgiou, PhD Thesis: “A Study of the Structure of 1-cyano-2-nitroso-compounds", Laboratory of Organic Chemistry, Faculty of Sciences, School of Chemistry, Aristotle University of Thessaloniki (1970).
2. V.P. Papageorgiou: "A Study of the Structure of 1-cyano-2-nitroso-compounds", Chim. Chron., New Series, 3, 47-54 (1974).
3. V.P. Papageorgiou: “Wagner-Meerwein Type Rearrangement in 2,7,7-trimethyl,2-chloro-3-nitroso-bicyclo[3.1.1] heptanes”, Chim. Chron., New Series, 3, 149-157 (1974).
4. V.P. Papageorgiou: "A Study of the Mass Spectra of 1-Cyano-2-nitroso-compounds", Chim. Chron., New Series, 4, 89-95 (1975).
5. Papageorgiou, V.P. and A.N. Sagredos: "The Hydrocarbon Composition of the Waxes of Hypericum perforatum", Chim. Chron., New Series, 5, 329-332 (1976).
6. V.P. Papageorgiou, Habilitation Thesis: "Study of the components of Alkanna tinctoria Tausch and the industrial preparation of the pharmaceutical wound healing ointment Histoplastin Red®", Laboratory of Organic Chemistry, Faculty of Sciences, School of Chemistry, Aristotle University of Thessaloniki (1976).
7. Papageorgiou, V.P.: "Structure of the waxes substances of the plant Alkanna tinctoria Tausch", Chim. Chron., New Series, 6, 365-374 (1977).
8. V.P. Papageorgiou: "A New Pigment of Alkanna tinctoria Having Naphthaquinone Structure", Planta Med., 31, 390-394 (1977).
9. A.N. Sagredos und V.P. Papageorgiou: "Bildung Cyclischer Fettsauren bei der Elaidinierung von Leinolfettsaure-methylester mit Selen", Chim. Chron., New Series, 6, 525-530 (1977).
10. Angelos N. Sagredos und Vassilios P. Papageorgiou: "Synthese von Benzoldicarbonsaure-bis-(2,3-distearoyl) Glycerylestern als Modell Alkydharze", Chim. Chron., New Series, 6, 531-541 (1977).
11. V.P. Papageorgiou: "Study on the Structure of the Components of Alkanna tinctoria", Chim. Chron., New Series,7, 45-54 (1978).
12. V.P. Papageorgiou and A.N. Sagredos: "A New Method for the Isolation of Gossypol from Cottonseed-oil Fatty Acids", Chim. Chron., New Series, 7, 101-109 (1978).
13. V.P. Papageorgiou: "Wound Healing Properties of Naphthaquinone Pigments from Alkanna tinctoria", Experientia, 34, 1499-1500 (1978).
14. V.P. Papageorgiou, A. Winkler, A. N. Sagredos and G.A. Digenis: "Studies on the Relationship of Structure to Antimicrobial Properties of Naphthaquinones and other Constituents of Alkanna tinctoria", Planta Med., 35, 56-60 (1979).
15. V.P. Papageorgiou: "1H-NMR Spectra of Naturally Occurring Isohexenylnaphthazarin Pigments", Planta Med., 37, 185-187 (1979).
16. C.I. Triantaphyllidis, V.P. Papageorgiou and G. Logaras: "On the Action of Vitamin C on the Neuromuscular Junctions", Experientia, 35, 807-808 (1979).
17. V.P. Papageorgiou: "Naphthaquinones from Roots of Macrotomia cephalotes DC." Planta Med., 37, 259-263 (1979).
18. V.P. Papageorgiou, A.S. Mellidis and A.N. Sagredos: "Study on the Antibiotic Fraction of Alkanna tinctoria Tausch", Chim. Chron., New Series, 9, 57-63 (1980).
19. V.P. Papageorgiou: "13C-NMR Spectra of Some Naturally Occurring Hydroxynaphthaquinones", Planta Med., 40, 305-307 (1980).
20. C.A. Tzimourtas, V.P. Papageorgiou, A.N. Sagredos, C.A. Alexiades: "Phytochemical Study of Mentha piperita Cultivated in Greece. Part I: Essential Oils", Chim. Chron., New Series, 9, 13-27 (1980).
21. C.A. Tzimourtas, V.P. Papageorgiou, A.N. Sagredos, C.A. Alexiades: "Phytochemical Study of Mentha piperita cultivated in Greece. Part II: Utilization of Plant Residue", Chim. Chron., New Series, 9, 29-35 (1980).
22. V.P. Papageorgiou: "Naturally Occurring Isohexenylnaphthazarin Pigments: A New Class of Drugs", Planta Med., 38, 193 -203 (1980).
23. V.P. Papageorgiou: "GLC-MS Computer Analysis of the Essential Oil of Thymus capitatus", Planta Med., Supplement, 29-33 (1980).
24. V.P. Papageorgiou and G.A. Digenis: "Isolation of two New Alkannin Esters from Alkanna tinctoria", Planta Med., 39, 81-84 (1980).
25. V.P. Papageorgiou, A.N. Sagredos and R. Moser: "GLC-MS Computer Analysis of the Essential Oil of Mastic Gum", Chim. Chron., New Series, 10, 119-124 (1981).
26. V.P. Papageorgiou and N. Argyriadou: "Trace Constituents in the Essential Oil of Thymus capitatus", Phytochemistry, 20(9), 2295 -97 (1981).
27. Maroulis, A., Tsiamis C. and Papageorgiou V.P.: "Quenching of the Charge Transfer Luminescence of tris (2,2' -bipyridine) Ru (II) by Co (III) Ketoenolates". J. Photochemistry, 17, 1, 11 (1981).
28. C.A. Tsipis, E.G. Bakalbassis, V.P. Papageorgiou and M.N. Bakola-Christianopoulou: "Structure and Bonding of Mononuclear and Homobinuclear Chelates of Some Divalent Metal Ions with the lingand 1,8-Dihydroxyanthraquinone", Can. J. Chem., 60(19), 2477 -2483 (1982).
29. S. Kokkini, V.P. Papageorgiou: "Morphological, cytological and chemical investigations of Mentha spicata L. in Greece", in Aromatic Plants: Basic and Applied Aspects, Vol. 7, ed. Margaris N., Koedam A. And Vokou D., Martinus Nijhoff Publishers, Hague (Netherlands), ch. 3, pp. 131-141 (1982).
30. V.P. Papageorgiou, S. Kokkini and N. Argyriadou: "Chemotaxonomy of the Greek species of Sideritis. I. Components of the volatile fraction of Sideritis raeseri ssp. raeseri", in Aromatic Plants: Basic and Applied Aspects, Vol. 7, ed. Margaris N., Koedam A. And Vokou D., Martinus Nijhoff Publishers, Hague (Netherlands), ch. 4, pp. 211-221 (1982).
31. C.A. Tsipis, M.P. Sigalas, V.P. Papageorgiou and M.N. Bakola-Christianopoulou: "Investigation of the Possible Pathways for Magnetic Exchange Interactions in Homobinuclear Chelates of Naphthazarin", Can. J. Chem., 61, 1500-1504 (1983).
32. V.P. Papageorgiou, N. Argyriadou, S. Kokkini and A.S. Mellidis: "Identification of Terpenoid Derivatives of Mentha spicata by Electron Ionization and Negative Ion Chemical Ionization Mass Spectra", Chim. Chron., New Series, 12, 27-35 (1983).
33. V.P. Papageorgiou, G. Ochir, O. Motl, N. Argyriadou and H. Dunkel: "Composition of the Essential Oil from Heracleum dissectum", J. Nat. Prod., 48(5), 851-53 (1985).
34. S.N. Zlatanos, A.N. Sagredos and V.P. Papageorgiou: "High Yield Monoglycerides Preparation from Glycidol and Carboxylic Acids", J. Am. Oil Chem. Soc., 62, 1575-77 (1985).
35. V.P. Papageorgiou, M. Liakopoulou-Kyriakides and Ch. Papadakis: "Quantitative Determination of Isohexenylnaphthazarin Pigments by TLC Densitometry", Flavour and Fragrance Journal, 1, 21 -24 (1985).
36. A. Kotali, and V.P. Papageorgiou: "Oxidation of the Dioximes of 1,3-Diketones with Lead Tetra-acetate", J. Chem. Soc., Perkin Trans. I, 2083-86 (1985).
37. A. Kotali, V.P. Papageorgiou and P.G. Tsoungas: "Electron-Impact Mass Spectra of Pyrazole- and Pyrazoline-1,2-dioxides; A Comparative Study with Related Systems", Org. Mass Spect., 21, 435-36 (1986).
38. V.P. Papageorgiou, M.M. Christianopoulou, L.L. Boutis, A. Papageorgiou and C.A. Tsipis: "Synthesis and Antitumor Activity of a Novel Diplatinum Complex of the Binucleating Naphthazarinato Ligand", Inorg. Chim. Acta, 124, 203-206 (1986).
39. A.S. Mellidis and V.P. Papageorgiou: "Novel Method for Selective Esterification of Polyhydroxy-anthraquinones", Tetrahedron Lett., 27 (48), 5881-82 (1986).
40. A.S. Mellidis and V.P. Papageorgiou: "Naphthazarins from Onosma heterophylla", J. Nat. Prod., 50 (4), 618 -619 (1987).
41. A.S. Mellidis and V.P. Papageorgiou: "Lipids from Roots of Onosma heterophylla", Phytochemistry, 26 (3), 842-43 (1987).
42. V.P. Papageorgiou, A.S. Mellidis and N. Argyriadou: "Naphthalene Derivatives Formed During the Vapour Distillation of the Plant Sideritis raeseri", Chim. Chron., New Series, 16, 99 -104 (1987).
43. A. Kotali, V.P. Papageorgiou and P.G. Tsoungas: "A Study of the Electron-Impact Fragmentation of Aliphatic and Alicyclic β-Dioximes", Org. Mass Spect., 22, 373-76 (1987).
44. S. Kokkini and V.P. Papageorgiou: "Constituents of Essential Oils from Mentha x villoso-nervata Opiz. Growing Wild in Greece", Flavour and Fragrance Journal, 2, 119 -21 (1987).
45. A.S. Mellidis and V.P. Papageorgiou: "Pyrrolizidine Alkaloids of the plant Onosma heterophylla", Chim. Chron., New Series, 17, 67-73 (1988).
46. A.S. Mellidis and V.P. Papageorgiou: "Semisynthetic Alkannin Derivatives of Biological Interest", Chim. Chron., New Series, 17, 203-219 (1988).
47. A. Kotali, V.P. Papageorgiou and P.G. Tsoungas: "A Simple and Effective Synthesis of 4H-Pyrazole-1,2-dioxides", Chim. Chron., New Series, 17, 239-43 (1988).
48. A.Kotali and V.P. Papageorgiou: "A Mass Spectral Study of Some Bis-Schiff Bases", Chim. Chron., New Series, 17, 149-156 (1988).
49. S. Kokkini and V.P. Papageorgiou: "Constituents of Essential Oils from Mentha longifolia Growing Wild in Greece", Planta Med., 1, 59-60 (1988).
50. S. Kokkini and V.P. Papageorgiou: "Constituents of Essential Oils from Mentha x rotundifolia Growing Wild in Greece", Planta Med., 2, 166-167 (1988).
51. N.D. Economou, V.P. Papageorgiou and J. Kopf: "Synthesis and Molecular Structure of (Oxalato) (2,4-hexanedionato) boron (III)", Zeitschrift fur Kristallographie, 187, 55-61 (1989).
52. A. Kotali and V.P. Papageorgiou: "Oxidation of Alicyclic 1,3-Dioximes with Lead Tetra-acetate", Chim. Chron., New Series, 18, 179-89 (1989).
53. A. Kotali and V.P. Papageorgiou: "Reactivity of Bis-Schiff Bases of a-Diketones Towards Lead Tetra-acetate", Chim. Chron. New Series, 18, 191-97 (1989).
54. T. Lialiaris, D. Mourelatos, L. Boutis, A. Papageorgiou, M. Christianopoulou, V.P. Papageorgiou and J. Dozi-Vassiliades: "Comparative study on Cytogenetic effects by Diplatinum Complexes of the Ligands of Naphthazarine and Squaric Acid in Human Lymphocytes", The Journal of Pharmacology and Experimental Therapeutics, 251, 368-71 (1989).
55. V.P. Papageorgiou and S.N. Zlatanos: "On the Interaction of Adjacent Cyano and Nitroso Groups", Chim. Chron., New Series, 19, 125-30 (1990).
56. N.D. Economou, V.P. Papageorgiou and A.F. Nicolaides: "New Organoboron Complexes as Catalysts in Asphalt Blowing", Chim. Chron., New Series, 19, 233-41 (1990).
57. A. Kotali and V.P. Papageorgiou: "The Chemistry of 1,3-Dioximes. A Brief Review", Org. Prep. and Proced. Int., 23, 595-610 (1991).
58. V.P. Papageorgiou, A.S. Mellidis and N. Argyriadou: "The Chemical Composition of the Essential Oil of Mastic Gum", J. Ess. Oil Res., 3, 107-110 (1991).
59. A. Kotali, V.P. Papageorgiou and N. Antoniou: "Deoxygenation of Pyrazole 1,2-Dioxides", Chim. Chron., New Series, 21, 81-7 (1992).
60. N. Yannovits-Argiriadis, V. Dourtoglou, D. Lyberopoulou and V.P. Papageorgiou: "Essential Oil Variation in Dwarf Plants of Pelargonium sp. capitatum, induced by a New Plant Growth Bioregulator", Plant Growth Regulation, 11, 125 -32 (1992).
61. R. Chaisuksant, A.N. Voulgaropoulos, A.S. Mellidis and V.P. Papageorgiou: "Voltammetric Determination of Total Alkannin Using Glassy Carbon Electrode", Analyst, 118, 179-82 (1993).
62. A.S. Mellidis, V.P. Papageorgiou, E. Kokkalou: "Phenolic Constituents from Onosma heterophylla" J. Nat. Prod. (U.S.A.), 56 (6), 949 (1993).
63. M.N. Bakola-Christianopoulou, V.P. Papageorgiou and Κ.K. Apazidou: "Gas chromatographic -Mass Spectrometric Study of the Reductive Silylation of Hydroxyquinones" J. Chromatogr., 645, 293-301 (1993).
64. R. Chaisuksant, A. N. Voulgaropoulos, A.S. Mellidis and V.P. Papageorgiou: "Determination of Total Alkannin in Pharmaceutical Preparations by Differential Pulse Voltammetry and Spectrophotometry" Analusis, 22, 400-403 (1994).
65. M.N. Bakola -Christianopoulou, V.P. Papageorgiou and Κ.K. Apazidou: "Synthesis and gas chromatographic /mass spectrometric study of silylated hydroxyquinones on all hydroxyl groups", Phosphorus, Sulfur and Silicon, 88, 53-65 (1994).
66. R. Chaisuksant, I. Niopas, A. Voulgaropoulos, A.S. Mellidis and V.P. Papageorgiou: "Analysis of some isohexenylnaphthazarins by reversed phase HPLC" Pharmazie, 50, 363-336 (1995).
67. E.A. Couladouros, Z.F. Plyta and V.P. Papageorgiou: "A general procedure for the efficient Synthesis of (Alkylamino)naphthaquinones" J. Org. Chem., 61(9), 3031-3033 (1996).
68. E.A. Couladouros, Z.F. Plyta, T. Iliadis, V. Roussis and V.P. Papageorgiou: "Heteroannulation of Naphthoquinones. Studies on the Reaction of 2-Bromo-2,3-dihydro-naphthoquinone Derivatives with 1,2-Binucleophiles" J. Heterocyclic Chem., May-June,709-714 (1996).
69. E.A. Couladouros, Z.F. Plyta, S.A. Haroutounian and V.P. Papageorgiou: "Εfficient Synthesis of Aminonaphthoquinones and Azidobenzohydroxyquinones: Mechanistic considerations of the Reaction of Hydrazoic Acid with Quinones. An Overview", J. Org. Chem., 62(1), 6-10 (1996).
70. Ε.Α. Couladouros, Z.F. Plyta, A.T. Strongilos and V.P. Papageorgiou: "Asymmetric Synthesis of Alkannin and Shikonin", Tetrahedron Lett., 38 (41), 7263-66 (1997).
71. V.P. Papageorgiou, A.S. Mellidis and N. Yannovits-Argiriadis: "Lipids from the Roots of Macrotomia densiflora", AGRO-FOOD-INDUSTRY HI-Tech, November/December, 24-27 (1997).
72. V.P. Papageorgiou, M.N. Bakola-Christianopoulou, K.K. Apazidou, E.E. Psarros, "Gas chromatographic-mass spectroscopic analysis of the acidic triterpenic fraction of mastic gum", J. Chromatogr. A, 769 (2): 263-273 (1997).
73. Μ. Liakopoulou-Kyriakides, C. Pachatouridis, L. Ekateriniadou and V.P. Papageorgiou: "A new synthesis of the tripeptide Gly-His-Lys with antimicrobial activity", Amino Acids, 13, 155-61 (1997).
74. V.P. Papageorgiou, A.S. Mellidis, A.N. Assimopoulou and A. Tsarbopoulos: "Use of MALDI MS for the Rapid Detection of Low-Mass Components in the Alkanna tinctoria pigments' fraction", J. Mass Spectrometry, 33, 89-91 (1998).
75. C. Pachatouridis, E.A. Couladouros, V.P. Papageorgiou and M. Liakopoulou-Kyriakides: “Derivatives of aminoquinones with N-protected amino acids”, Letters in Peptide Science, 5, 259-262 (1998).
76. Z.F. Plyta, T. Li, V.P. Papageorgiou, A.S. Mellidis, A.N. Assimopoulou, E.N. Pitsinos and E.A. Couladouros: "Inhibition of Topoisomerase I by naphthaquinone derivatives", Bioorganic & Medicinal Chemistry Letter, 8, 3385-3390 (1998).
77. V.P. Papageorgiou, A.N. Assimopoulou E.A. Couladouros, D. Hepworth and K.C. Nicolaou: "Chemistry and Biology of Alkannins, Shikonins and Related Naphthazarin Natural Products", Angewandte Chemie, Int. Edition, 38(3), 270-301 (1999).
78. V.P. Papageorgiou, Assimopoulou, A.N., Couladouros, E.A., D. Hepworth and K.C. Nicolaou: Chemie und Biologie von Alkannin, Shikonin und verwandten Naphthazarin-Naturstoffen, Angewandte Chemie, 111(3), 280-311 (1999).
79. V.P. Papageorgiou, A.N. Assimopoulou and N. Yannovits-Argiriadis: "Chemical composition of the essential oil of Chios turpentine", J. Ess. Oil. Research, 11, 367-368, May/June (1999).
80. V.P. Papageorgiou, «Wound Healing», National Hellenic Research Foundation, 105-114 (2000).
81. A. Kotali, E. Lazaridou, V.P. Papageorgiou and P.A. Harris: "Oxidation of 2-amino-2'-hydroxybenzophenone N-acylhydrazones: Synthesis of 6-substituted dibenzazepin-11-ones", Heterocycles, 55(6), 1057-1062 (2001).
82. Ch. Pachatouridis, Z. Iakovidou, E. Myoglou, D. Mourelatos, A.A. Pantazaki, V.P. Papageorgiou, A. Kotsis and M. Liakopoulou-Kyriakides: “Synthesis and cytogenetic effects of aminoquinone derivatives with a di- and a tripeptide”, Anti-Cancer Drugs, 13, 367-372 (2002).
83. V.P. Papageorgiou, A.N. Assimopoulou, G. Kyriacou: “Determination of naturally occurring hydroxynaphthoquinone polymers by Size-Exclusion Chromatography”, Chromatographia, 55(7/8), 423-430 (2002).
84. E.A. Couladouros, A.T. Strongilos, V.P. Papageorgiou and Z.F. Plyta: “A New efficient route for multigram asymmetric synthesis of Alkannin and Shikonin”, Chem. Eur. J., 8(8), 1795-1803 (2002).
85. N.K. Andrikopoulos, A.C. Kaliora, A.N. Assimopoulou and V.P. Papageorgiou: "Inhibitory activity of minor polyphenolic and nonpolyphenolic constituents of olive oil against in vitro Low-Density Lipoprotein oxidation", J. Med. Food, 5(1), 1-7 (2002).
86. A.P. Kourounakis, A.N. Assimopoulou, V.P. Papageorgiou, A. Gavalas and P.N. Kourounakis: "Alkannin and Shikonin: Effect on free radical processes and on inflammation. A preliminary pharmacochemical investigation", Arch. Pharm. Pharm. Med. Chem., 6, 262-266 (2002).
87. N.K. Andrikopoulos, A.C. Kaliora, A.N. Assimopoulou and V.P. Papageorgiou: "Biological Activity of Saliva Against in vitro LDL Oxidation After Chewing Commercial Chewing Gums", It. J. Food Sci., 14 (3), 279-289 (2002).
88. N.K. Andrikopoulos, A.C. Kaliora, A.N. Assimopoulou and V.P. Papageorgiou: "Biological activity of some naturally occurring resins, gums and pigments against in vitro LDL oxidation", Phytotherapy Res., 17(5), 501-507 (2003).
89. V.P. Papageorgiou and A.N. Assimopoulou: "Lipids of the hexane extract from the roots of medicinal Boraginaceous species", Phytochemical analysis, 14, 251-258 (2003).
90. A.N. Assimopoulou, V.P. Papageorgiou and K.C. Kiparissides: "Synthesis and release studies of shikonin-containing microcapsules prepared by the solvent evaporation method", J. Microencapsulation, Sep-Oct 2003, 20(5), 581-596 (2003).
91. V.P. Papageorgiou, «Searching for longevity», Honorary Volume, in memory of Prof. Alexandros Tsioumis, Ziti Eds. 182-200 (2003).
92. A.N. Assimopoulou and V.P. Papageorgiou: “Encapsulation of isohexenyl-naphthazarins in cyclodextrins”, Biomedical Chromatography, 18, 240-247 (2004).
93. A.N. Assimopoulou and V.P. Papageorgiou: “Study on polymerization of the pharmaceutical substances isohexenylnaphthazarins”, Biomedical Chromatography, 18(8), 492-500 (2004).
94. A.N. Assimopoulou and V.P. Papageorgiou: “Preparation and release studies of alkannin-containing microcapsules”, J. Microencapsulation, 21(2), 161-173 (2004).
95. A.N. Assimopoulou and V.P. Papageorgiou: “Study on isohexenylnaphthazarins polymerization in alkaline media”, Biomedical Chromatography, 18(8), 508-522 (2004).
96. A.N. Assimopoulou and V.P. Papageorgiou: “Study on the enantiomeric ratio of the pharmaceutical substances alkannin and shikonin”, Biomedical Chromatography, 18(8), 791-799 (2004).
97. A.N. Assimopoulou, D. Boskou and V.P. Papageorgiou,: “Antioxidant activity of alkannin, shikonin and Alkanna tinctoria root extracts in oil substrates”, Food Chemistry, 87, 433-438 (2004).
98. Α.N. Assimopoulou, S.N. Zlatanos and V.P. Papageorgiou: “Antioxidant activity of natural resins and bioactive triterpenes in oil substrates”, Food Chemistry, 92, 721-727 (2005); «Top25 Hottest articles» of FoodChemistry (No. 17).
99. M.A. Anagnostopoulou, P. Kefalas, E. Kokkalou, A.N. Assimopoulou and V.P. Papageorgiou: “Analysis of antioxidant compounds in sweet orange peel by HPLC-DAD-MS (ESI+)”, Biomedical Chromatography, 19(2), 138-149 (2005).
100. M.A. Anagnostopoulou, P. Kefalas, V.P. Papageorgiou, A.N. Assimopoulou and D. Boskou: “Radical scavenging activity of various extracts and fractions of sweet orange peel (Citrus sinensis)”, Food Chemistry, 94 (1), 19-25 (2006); «Top25 Hottest articles» of FoodChemistry (No. 2).
101. A.N. Assimopoulouand V.P. Papageorgiou: “GC-MS analysis of penta- and tetra-cyclic triterpenes from resins of Pistacia species. Part I. Pistacia lentiscus var. Chia”, Biomedical Chromatography, 19, 285-311 (2005).
102. A.N. Assimopoulouand V.P. Papageorgiou: “GC-MS analysis of penta- and tetra-cyclic triterpenes from resins of Pistacia species. Part II. Pistacia terebinthus var. Chia”, Biomedical Chromatography, 19, 586-605 (2005).
103. A. Spyros, A.N. Assimopoulou and V.P. Papageorgiou: “Structure determination of oligomeric alkannin and shikonin derivatives”, Biomedical Chromatography, 19, 498-505 (2005).
104. Α.N. Assimopoulou and V.P. Papageorgiou: “Radical scavenging activity of Alkanna tinctoria root extracts and their main constituents, hydroxynaphthoquinones”, Phytotherapy Research, 19(2), 141-147 (2005).
105. A.N. Assimopoulou, Z. Sinakos and V.P. Papageorgiou: “Radical scavenging activity of Crocus sativus L. extract and its bioactive constituents”, Phytotherapy Research, 19, 997-1000 (2005).
106. V.P. Papageorgiou, A.N. Assimopoulou, V.F. Samanidou and I.N. Papadoyannis: “Analytical methods for the determination of alkannins and shikonins”, invited paper, Current Organic Chemistry, 10(5), 583-622 (2006).
107. V.P. Papageorgiou, A.N. Assimopoulou, V.F. Samanidou and I.N. Papadoyannis: “Recent advances in chemistry, biology and biotechnology of alkannins and shikonins”, invited paper, Current Organic Chemistry, 10(16), 2123-2142 (2006).
108. A.N. Assimopoulou, I. Karapanagiotis, A. Vasiliou, S. Kokkini and V.P. Papageorgiou: “Analysis of alkannin derivatives from Alkanna species by high-performance liquid chromatography/photodiode array/mass spectrometry”, Biomedical Chromatography, 20, 1359-1374 (2006).
109. A.N. Assimopoulou and V.P. Papageorgiou: “Oleoresins from Pistacia species: Chemistry and Biology”, invited paper, Recent progress in medicinal plants, Natural Products II, vol.18, CΗ 7: Common and chronic diseases, p.146-202. Studium Press USA, (2007).
110. Α.Ν. Assimopoulou, M. Ganzera, Η. Stuppner and V.P. Papageorgiou: “Simultaneous determination of monomeric and oligomeric alkannins and shikonins, by HPLC-DAD-MS”, Biomedical Chromatography, 22(2), 173-190 (2008); Macro World Investor, May 22, 2008 & newsRx.com, 12 May 2008.
111. V.P. Papageorgiou, A.N. Assimopoulou and A.C. Ballis: “Alkannins and Shikonins: A New Class of wound healing agents”, invited paper, Current Medicinal Chemistry, 15(30), 3248-3267 (2008).
112. Α.Ν. Assimopoulou, S. Sturm, Η. Stuppner and V.P. Papageorgiou, “Preparative isolation and purification of alkannin/shikonin derivatives from natural products by High-Speed Counter-Current Chromatography”, Biomedical Chromatography, 23, 182-198 (2009); SeparationsNow Digest January 2009, SeparationsNow Ion Chromatography Newsletter February 2009 ; Separation Science, March 2009; newsRx.com, 23 March 2009.
113. M. Karayannopoulou, P. Loukopoulos, L.G. Papazoglou, V. Tsioli, T.L. Anagnostou, N. Assaloumidis, T.C. Constantinidis, A.N. Assimopoulou, E. Kaldrymidou, and V.P. Papageorgiou: “Naturally occurring isohexenylnaphthazarins and wound healing: Experimental study in dogs”, J. Cutan. Med. Surg. Mar-Apr; 14(2): 62-70 (2010).
114. Noula, E., Samanidou, V.F., Assimopoulou, A.N., Papageorgiou, V.P. and Papadoyannis, I.N. “Solid-phase extraction for purification of alkannin/shikonin samples and isolation of monomeric and dimeric fractions” Analytical and Bioanalytical Chemistry, 397 (6), 2221–2232 (2010).
115. S.A. Ordoudi, S.K. Tsermentseli, N. Nenadis, A.N. Assimopoulou, M.Z. Tsimidou and V.P. Papageorgiou: “Structure-radical scavenging activity relationship of alkannin/shikonin derivatives”, Food Chemistry, 124 (1), 171-176 (2011).
116. Rasmus K. Petersen, Kathrine B. Christensen, Andreana N. Assimopoulou, Xavier Frette, Vassilios P. Papageorgiou, Karsten Kristiansen and Irene Kouskoumvekaki. “Pharmacophore-driven identification of novel PPARγ partial agonists from natural sources”, Journal of Computer-Aided Molecular Design, 25, 107–116 (2011).
117. K.N. Kontogiannopoulos, A.N. Assimopoulou, I. Tsivintzelis, C. Panayiotou, V. P. Papageorgiou. Electrospun fiber mats containing shikonin and derivatives with potential biomedical applications, Int. J. Pharmaceutics, 409 (1-2), pp. 216-228 (2011).

118. Konstantinos N. Kontogiannopoulos, Andreana N. Assimopoulou, Konstantinos Dimas, Vassilios P. Papageorgiou. Shikonin–loaded liposomes as a new drug delivery system: physicochemical characterization and in vitro cytotoxicity, European Journal of Lipid Science and Technology, 113, 1113–1123 (2011).

119. Α.N. Assimopoulou and V.P. Papageorgiou: “Radical scavenging activity of natural resins and bioactive triterpenes”, Food Chemistry (2011).
120. A.N. Assimopoulou, M. Betsiou, C. Sikalidis and V.P. Papageorgiou: “A Hydroxyapatite - Shikonin Drug Delivery System”, Bulletin of Materials Science (2011).
121. K. Kalokasidis, A.N. Assimopoulou, M.N. Papadakis, A.G. Manios and V.P. Papageorgiou. “An Alkannin-based wound healing medicine for the treatment of actinic keratoses: a pilot study”, Journal of Ethnopharmacology (2011).
122. C. Sikalidis, M. Betsiou, A.N. Assimopoulou and V.P. Papageorgiou: “Adsorption and Release of Shikonin from Porous Hydroxyapatite Based Ceramics”, Advances in Applied Ceramics (2011).

123. Konstantinos N. Kontogiannopoulos, Andreana N. Assimopoulou, Sophia Hatziantoniou, Kostas Karatasos, Costas Demetzos, Vassilios P. Papageorgiou. “Chimeric advanced drug delivery nano systems (chi-aDDnSs) for shikonin combining dendritic and liposomal technology”, International Journal of Pharmaceutics, in press, doi:10.1016/j.ijpharm.2011.09.031

124. M. Betsiou, G. Bantsis, A.N. Assimopoulou, V.P. Papageorgiou, A. Papageorgiou and C. Sikalidis: “Hydroxyapatite as local delivery system for gemcitabine hydrochloride and oxaliplatin: in vitro adsorption and release studies”, in preparation (2011).
125. Α.Ν. Assimopoulou, M. Ganzera, Η. Stuppner and V.P. Papageorgiou: “HPLC-PDA-MS analysis of Pistacia lentiscus resin and its acidic and neutral fractions”, Biomedical Chromatography (2011).
126. Κ.N. Kontogiannopoulos, A.N. Assimopoulou and V.P. Papageorgiou: “Preparation and characterization of sterically stabilized shikonin loaded liposomes”, in preparation, (2011).
127. A.N. Assimopoulou, J. Tappeiner, A. Vasiliou, M. Ganzera, H. Stuppner, V.P. Papageorgiou: “Determination of naphthazarin derivatives in endemic Greek Alkanna species”, Planta Medica (2011).
128. A.N. Assimopoulou, S. Schwaiger, H. Stuppner, V.P. Papageorgiou: “Isolation and structure elucidation of tetra- and penta- cyclic triterpenes from Pistacia lentiscus oleoresins”, J. Nat. Prod. (2011).
129. A.N. Assimopoulou, S. Schwaiger, H. Stuppner, V.P. Papageorgiou: “Isolation and structure elucidation of dimeric alkannin and shikonin derivatives by LC-SPE-NMR”, J. Nat. Prod. (2011).
130. A.N. Assimopoulou, S. Schwaiger, S. Abazi, H. Stuppner, V.P. Papageorgiou: “Comparative study on several extraction methods of Alkanna tinctoria roots”, Anal & Bioanal. Chemistry (2011).
131. A.N. Assimopoulou, S. Schwaiger, H. Stuppner, V.P. Papageorgiou: “Comparative study on several isolation and purification methods of alkannin and shikonin derivatives”, Anal & Bioanal. Chemistry (2011).
132. Ahmad Ali, Andreana Nikolaos Assimopoulou, Vassilios Peter Papageorgiou, Herbert Kolodziej: “Structure/antileishmanial activity relationship study of naphthoquinones and dependency of the mode of action on the substitution patterns”, Planta Medica in press DOI: 10.1055/s-0031-1280092 (2011).
133. I. Tanis, K. Karatasos, A.N. Assimopoulou, V.P. Papageorgiou: “Modeling of Hyperbranched Polyesters as Hosts for the Multifunctional Bioactive Agent Shikonin”, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 13, 10808-10817 (2011).

PRESENTATIONS IN CONFERENCES

Professor Papageorgiou has been invited to participate in the honoring, scientific and organizing committee of several international and national conferences, where he has presented several scientific papers.

1. N.E. Alexandrou and V.P. Papageorgiou: "Pinacol Rearrangement in 2-halo-1-nitroso-tetramethyl-ethane". Report of the Fourth Conference of the Greek Chemists Association. Athens, 24-31 May (1970).
2. V.P. Papageorgiou, C.I. Triantaphyllidis, V. Mirtsou-Fidani, A. Mellides and G. Logaras: "The Action of Vitamin C on the Isolated Rat Diaphragm". Scientific Anniversary of College of Medicine of Aristotle University of Thessaloniki, 11 (1), 131-143 (1975).
3. V.P. Papageorgiou and G.A. Digenis: "Study on the Chemical Constituents of Alkanna tinctoria", Abst. 23rd Academy of Pharmaceutical Sciences National Meeting, Phoenix, Arizona (USA), November 13-17, p. 156 (1977).
4. V.P. Papageorgiou, A. N. Sagredos, P. S. Sabharwal, C. Gairola and G. A. Digenis: "Study on the Biological Properties of Some Naturally Occurring Naphthaquinones", Abst. 23rd Academy of Pharmaceutical Sciences National Meeting, Phoenix, Arizona (USA), November 13-17, p. 178 (1977).
5. V.P. Papageorgiou: "A Study on the Products of the Reaction of 1-Nitroso-2-chloro-cyclohexane and Cyanide Salts". Proceedings 5th Conference of the Greek Chemists Association, Athens (Greece), p. 211 (1980).
6. S. N. Zlatanos, A. N. Sagredos and V. P. Papageorgiou: "A Study on the Reaction of the 2,3-Epoxy-propanol and Carboxylic Acids for the Preparation Monoglycerides". Proceedings 5th Conference of the Greek Chemists Association, Athens (Greece), p. 203 (1980).
7. V.P. Papageorgiou and N. Argyriadou: "New Trace Constituents in the Oil of Thymus capitatus". Balkan Chemistry Days, Athens (Greece), April 17-19, p. 137-138 (1980).
8. V.P. Papageorgiou, N. Argyriadou, S. Kokkini, A.S. Mellidis: "Identification of terpene derivatives of Mentha spicata with EI- and APCI-Mass Spectra". 5th Panhellenic Chemistry Congress, Vol. A, Athens (Greece), November 10-15, p. 237-247 (1980).
9. Kovatsis, V.A., V.P. Papageorgiou and M. Christianopoulou: "Quantitative Determination of Alkannins in Pharmaceutical Products, Beverages and Cosmetics by Indirect Atomic Absorption Spectroscopy". Toxicological Aspects, 43-54 (1980); Procds. IXth International Congress of the European Association of poison control centers and European meeting of the International Association of Forensic Toxicologists, Thessaloniki, August 24-27 (1980).
10. Kovatsis, V.A., M.N. Christianopoulou and V.P. Papageorgiou: "Determination of Colchicine in Biological Samples by Indirect Atomic Absorption Spectroscopy". Toxicological Aspects, 220 (1980); Procds. IXth International Congress of the European Association of poison control centers and European meeting of the International Association of Forensic Toxicologists, Thessaloniki, August 24-27 (1980).
11. A. Maroulis, C. Tsiamis and V.P. Papageorgiou: "Quenching of the Charge Transfer Luminescence of tris (2,2' -bipyridine) Ru (II) by Co (III) Ketoenolates". Abstrs. Xth International Conference on Photochemistry, Iraklion, Greece, September 6-12, 1981.
12. Ζ. Sinakos, V.P. Papageorgiou, M. Liakopoulou-Kyriakides, V. Carypides: "The effect of extracts of two Lilliflorae species on Platelet Aggregation". European and African Division, 6th Meeting, Athens, Greece, p. 307 (1981).
13. Ζ. Sinakos, V.P. Papageorgiou, M. Liakopoulou-Kyriakidis, F. Chatzivassiliou: "Effect of extracts of Allium sphaerocephalum on platelet aggregation". 7th Greek Medical Conference, p.73 (1981).
14. Tsipis C.A., M.P. Sigalas, V.P. Papageorgiou, M.M. Bakola-Christianopoulou: "Investigation of the possible pairwise orbital interaction supporting superexchange processes in homobinuclear chelates of naphthazarin". Abstr. of Papers, XXII International Conference on Coordination Chemistry, Vol. 2, p. 628, Budapest, Hungary, August 23-27 (1982).
15. Μ. Liakopoulou-Kyriakides, Z. Sinakos, V.P. Papageorgiou and F. Chatzivassilliou, “Effect of extracts of Allium sphaerocephalum on platelet aggregation”, Balkan Pharm Days, Varna, Bulgaria, p. 73, (1982)
16. V.P. Papageorgiou, N. Argyriadou and Z. Krzeminski: "Sesquiterpenoids of Berula erecta". Abst. 2nd Balkan Conference on Organic Chemistry, Varna (Burlgaria), May 17-19 (1983).
17. V.P. Papageorgiou, N. Argyriadou and H. Dunkel: "Naphthalene Derivatives from the Essential Oils of Sideritis Sp." Abst. 2nd Balkan Conference on Organic Chemistry, Varna (Bulgaria), May 17-19 (1983).
18. V.P. Papageorgiou and A.S. Mellidis: "A New Red Pigment of Onosma heterophylla, Having Hydroxynaphthaquinone Structure". Abst. 2nd Balkan Conference on Organic Chemistry, Varna (Bulgaria), May 17-19 (1983).
19. V.P. Papageorgiou and S.N. Zlatanos: "A Study on the Products of the Reaction of 2,3-Dimethyl-2-butene and Nitrozylcyanide". Abst. 2nd Balkan Conference on Organic Chemistry, Varna (Bulgaria), May 17-19 (1983).
20. A. Kotali and V.P. Papageorgiou: "Oxidative Cyclization of Some Dioximes of 1,3-Diketones with Lead (IV) Acetate", Abst. 2nd Balkan Conference on Organic Chemistry, Varna (Bulgaria), May 17-19, p.150 (1983).
21. A. Kotali and V.P. Papageorgiou: "Transformation of the Dioximes of β-Diketones to Nitroso-compounds with Lead Tetra-acetate". Proceedings 9th Conference of the Greek Chemists Association, Athens (Greece), 5-10 November, Vol. A, p. 320-323 (1984).
22. A. Kotali and V.P. Papageorgiou: "Greek Oil Shales: The Analytical Procedure". Proceedings 10th Conference of the Greek Chemists Association, Patras (Greece), 2-7 December, p. 174-177 (1985).
23. L. Boutis and V.P. Papageorgiou: "Prospects on Biplatinum and Bipalladium Complexes as Antineoplastic Agents". International Symposium on Present State and Perspectives in Application of Inhibitors of Nucleic Acids and Protein Synthesis. Institute of Molecular Biology, Bulgarian Academy of Sciences, Varna (Bulgaria), October 7-11, p. 57 (1985).
24. L. Boutis, A. Papageorgiou, V.P. Papageorgiou and M. Christianopoulou: "Antitumor Activity of a Diplatinum Complex of the Binucleating Naphthazarinato Ligand". International Symposium on Present State and Perspectives in Application of Inhibitors of Nucleic Acids and Protein Synthesis. Institute of Molecular Biology, Bulgarian Academy of Sciences, Varna (Bulgaria), October 7-11, p. 62-63 (1985).
25. L. Boutis, V.P. Papageorgiou, M. Christianopoulou, A. Papadopoulou-Boutis and A. Mellides: "Antitumor activity of a Bi-cispalladium complex of naphthazarin". 3rd Panhelennic Oncology Conference, Athens, 24-26 May (1985).
26. L. Boutis, V.P. Papageorgiou, A. Papageorgiou, M. Christianopoulou and A. Papadopoulou-Boutis: "Antitumor Activity of a Diplatinum Complex of the Naphthazarinato Binucleating Ligand". Proceedings 18th National Cancer Congress of the German Cancer Society, Munich (Germany), March 4-8 (1986). Cancer Research & Clinical Oncology, Suppl. Vol. III, S26 (1986).
27. A. Kotali, V.P. Papageorgiou and P.G. Tsoungas: "A Study of the Electron-Impact Fragmentation of Aliphatic and Alicyclic 1,3-Dioximes". Proceedings of the 2nd Greek Symposium on Mass Spectrometry, Athens (Greece), 6-7 November, p. 82-85 (1986).
28. A. Kotali, V.P. Papageorgiou and P. Tsoungas: "Electron-Impact Mass Spectra of Pyrazole- and Pyrazoline-1,2-dioxides". Proceedings 11th Conference of the Greek Chemists Association, Athens (Greece), 2-5 December, Vol. B, p. 411-412 (1986).
29. A. Kotali and V.P. Papageorgiou: "Lead Tetra-acetate Oxidation of Bis-Schiff Bases of a-Diketones". Proceedings 11th Conference of the Greek Chemists Association, Athens (Greece), 2-5 December, Vol. B. p. 408-410 (1986).
30. A. Kotali, V.P. Papageorgiou and P.G. Tsoungas: "A Simple and Effective Synthesis of Pyrazole-1,2-dioxides". Proceedings of the 11th Conference of the Greek Chemists Association, Athens (Greece), 2-5 December, Vol. I., p. 250-252 (1986).
31. V.P. Papageorgiou and A.S. Mellidis: "GPC Analysis of the Polymeric Isohexenylnaphthazarins, a New Class of Drugs". Proceedings 11th Conference of the Greek Chemists Association, Athens (Greece), p. 5-7 (1986).
32. A.S. Mellidis and V.P. Papageorgiou: "Semisynthetic Alkannin Derivatives of Biological Interest. Structure-Biological Activity Relationship". Proceedings of the 11th Conference of the Greek Chemists Association, Athens (Greece), p. 8 (1986).
33. M.N. Bakola-Christianopoulou, V.P. Papageorgiou, L. Psarros: "Catalytic silylation of quinones and their hydroxyl derivatives". 2nd Conference of Chemistry, Greece & Cyprus, Athens (1990).
34. V.P. Papageorgiou and M.N. Bakola-Christianopoulou: "Synthesis and study of novel diplatinum (II) compounds of the polyfunctional squaric acid ligand". Greek-Italian Meeting on Chemistry of biological systems and molecular chemical engineering, Loutraki (Greece), June 11-13 (1990).
35. A.S. Mellidis, V.P. Papageorgiou and N. Argyriadou: "Analysis of the Volatile Constituents of the Roots of the plant Alkanna tinctoria". Proceedings of the 13th Conference of the Greek Chemists Association, Athens (Greece), 21-25 October, p. 358-360 (1991).
36. V.P.Papageorgiou, M.N. Bakola-Christianopoulou, K.K. Apazidou and L. Psarros: "GLC-MS Computer Analysis of the mixture of the Triterpenic Derivatives of Pistacia lentiscus L. var. Chia". Proceedings of the 13th Conference of the Greek Chemists Association, Athens (Greece), p. 316 (1991).
37. M.N. Bakola-Christianopoulou, V.P. Papageorgiou, K. Apazidou and L. Psarros: "Silylation of Hydroxy-quinones". Proceedings 13th Conference of the Greek Chemists Association, Athens (Greece), 21-25 October, p. 306-310 (1991).
38. Bakola-Christianopoulou M.N., V.P. Papageorgiou, K. K. Apazidou: "GC-MS analysis of hydroxyquinone mixture". Proceedings of the 3rd Conference of Chemistry Cyrpus&Greece, Nicosia, 30 September-4 October, p. 375-379 (1992).
39. Z. Plyta, E.A. Couladouros and V.P. Papageorgiou: "Synthesis of Pharmacologically Interesting Napthazarin Analogs". 6th Panhellenic Symposium on Medicinal Chemistry, Athens (Greece), p.6, 28-29 May (1993).
40. M.N. Bakola-Christianopoulou, V.P. Papageorgiou, K.K. Apazidou: "Mass spectra Study of Partially Silylated Hydroxyquinones on their Hydroxyl groups". Proceedings of the Xth FECHEM Conference on Organometallic Chemistry, Agia Pelagia, Crete (Greece), September 5-10, p. 174 (1993).
41. M.N. Bakola-Christianopoulou, V.P. Papageorgiou, K.K. Apazidou: "Synthesis of tert-Butyldimethylsilyl Ethers of Hydroxyquinones". Proceedings of the Xth International Symposium on Organo silicon Chemistry, Poznan (Poland), August 15-20, p. 128 (1993).
42. M.N. Bakola-Christianopoulou, V.P. Papageorgiou, K. K. Apazidou: "Synthesis of tert-Butyldimethylsilyl Ethers of Hydroxyquinones by Partial Protection of their Hydroxylgroups. GC/MS Study". Proceedings Xth International Symposium on Organosilicon Chemistry, Poznan (Poland), August 15-20, p.129 (1993).
43. C. Sikalidis, V.P. Papageorgiou, A. Kottaridou and Ch. Paliadeli: "Analyses and characterization of the pigments from the "Thomb with the throne", in Vergina, Macedonia, Greece". Proceedings of the 2nd Symposium on Archeometrical and Archaeological Research in Macedonia and Thrace, Thessaloniki 26-28 March (1993).
44. Ch. Pachatouridis, M.L. Liakopoulou-Kyriakides and V.P. Papageorgiou: "A New Synthesis of the Tripeptide Gly-His-Lys". Proceedings of the 15th Panhellenic Conference of Chemistry, Thessaloniki, Greece, 6-10 December, p.785-788 (1994).
45. E. Tsatsaroni, , M. Liakopoulou-Kyriakides, A. Mellides and V.P. Papageorgiou: "Dyeing of the Cotton and Wool fibres with natural pigments-Effect of Enzymatic Treatment of the fibres on their Dyeing properties". Proceedings of the 16th Panhellenic Conference of Chemistry, Athens, Greece, December 4-8, Vol. I, p.539-542 (1995).
46. Z.F. Plyta, E.A. Couladouros and V.P. Papageorgiou: "Addition of ΗΝ3 in quinone systems. Application on the synthesis of tyrosine phosphatase inhibitor, Dephostatin". 7th Hellenic Symposium on Medicinal Chemistry, Athens, 17-18 November (1995).
47. E. Tsatsaroni, M. Liakopoulou-Kyriakides, Ι. Eleutheriades, A. Mellides and V.P. Papageorgiou: "Comparative study of the dyeing properties of several natural pigments on wool and cotton fibers pre-processed with enzymes". Proceedings of the 5th Greece-Cyprus Chemistry Conference, Nicosia 4-7 September, p. 1-5 (1996).
48. V.P. Papageorgiou, A. Mellides and A.N. Assimopoulou: "Polymerization of isohexenylnaphthazarins, a new class of drugs". Proceedings of the 1st Panhellenic Scientific Chemical Engineering Congress, Patras, 29-31 May, p. 277-282 (1997).
49. Z.F. Plyta, A.T. Strongilos, V.P. Papageorgiou and E.A. Couladouros: "Total assymetric synthesis of the active ingredient of the wound healing preparation HELIXDERM". 2nd Symposium on Chemical Research and Industry, NCSR Demokritos, Athens, 3-5 December (1997).
50. V.P. Papageorgiou, A.N. Assimopoulouand G. Kyriacou: "GPC Analysis of a mixture of hydroxynaphthoquinone pigments". Proceedings of the 2nd Panhellenic Scientific Chemical Engineering Congress, Thessaloniki, 27-29 May, p. 713 (1999).
51. C. Pachatouridis, Z. Iakovidou, E. Myoglou, D. Mourelatos, A. Kotsis, V.P. Papageorgiou, M. Liakopoulou-Kyriakides: "Genotoxic effect of conjugation products of quinones with aminoacids and peptides on normal human lymphocytes ". Proceedings of the 21st Panhellenic Conference of the Greek Society of Biological Sciences, p. 249-250, Syros, 28-31 May (1999).
52. A.N. Assimopoulou, V.P. Papageorgiou, K.C. Kiparissides: "Microencapsulation of the pharmaceutical constituent shikonin in ethylcellulose microparticles”. 3rd Panhellenic Scientific Chemical Engineering Congress, May, Αthens, p. 133-136 (2001).
53. A.N. Assimopoulou, Α. Antoniou, Ν. Sotiras, V.P. Papageorgiou: "Study of the antioxidant activity of natural resins in oils". 4th Panhellenic Scientific Chemical Engineering Congress, Patras, May, p. 465-468 (2003).
54. A.N. Assimopoulou, S. Kokkini, Α. Vasiliou, D. Tzimoragkas, Α. Dimopoulou, V.P. Papageorgiou: "Preliminary chemical analysis of isohexenylnaphthazarins of natural origin". 4th Panhellenic Scientific Chemical Engineering Congress, Patras, May, p. 469-472 (2003).
55. Κ. Sikalidis, A.N. Assimopoulou, Α. Karnapati, V.P. Papageorgiou: "Preparation of local drug delivery systems for shikonin based on porous hydroxyapatite". 5th Panhellenic Scientific Chemical Engineering Congress, Thessaloniki, 26-28 May, p. 165-168 (2005).
56. A.N. Assimopoulou, Κ. Sikalidis, Κ.Ν. Kontogiannopoulos, Κ. Kipouridou, V.P. Papageorgiou: "Encapsulation of the pharmaceutical constituent, shikonin in Clinoptilolite". 5th Panhellenic Scientific Chemical Engineering Congress, Thessaloniki, 26-28 May, p. 169-172 (2005).
57. A.N. Assimopoulou, Κ. Sikalidis, P. Mparmpalexis, G. Mavridis, V.P. Papageorgiou: " Encapsulation of the pharmaceutical constituent, shikonin in porous hydroxyapatite". 5th Panhellenic Scientific Chemical Engineering Congress, Thessaloniki, 26-28 May, p. 185-188 (2005).
58. A.N. Assimopoulou, I. Karapanagiotis, V.P. Papageorgiou: "Determination of naturally occurring isohexenylnaphthazarins by HPLC-MS". 29th International Symposium on High Performance Liquid Phase Separations and Related Techniques, (HPLC 2005 Conference), Sweden, June 26-30, p.399 (2005).
59. Κ.Ν. Kontogiannopoulos, A.N. Assimopoulou, Κ. Kiparissides, V.P. Papageorgiou: "Liposomes as new delivery systems of the pharmaceutical ingredient shikonin ". 6th Panhellenic Scientific Chemical Engineering Congress, Athens, 31 May - 2 June, p. 1213-1216 (2007).
60. Assimopoulou A.N., Ganzera M., Stuppner H., Papageorgiou V.P.: "Simultaneous determination of monomeric and oligomeric alkannin and shikonin by HPLC-DAD-APCI-MS". 55th International Congress and Annual Meeting of the Society for Medicinal Plant Research, September 2-6, Graz, Austria, Planta Medica Book of Abstracts, 73, No 9, p 898 (2007).
61. Kravva M.T., Assimopoulou A.N., Papageorgiou V.P.: "Microencapsulation of shikonin in Pistacia lentiscus oleoresin matrix". 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF, Natural Products with pharmaceutical, nutraceutical, cosmetic and agrochemical interest, Athens August 3-8 2008, Book of abstracts, Planta Medica, Issue 09, Volume 74, July , p. 1098 (2008).
62. Assimopoulou A.N., Sturm S., Stuppner H., Papageorgiou V.P.: "Preparative isolation of Alkannin/Shikonin derivatives by High-Speed Counter-Current Chromatography". 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF, Natural Products with pharmaceutical, nutraceutical, cosmetic and agrochemical interest, Athens August 3-8 2008, Book of abstracts, Planta Medica, Issue 09, Volume 74, July, p. 1098 (2008).
63. Tsermentseli S.K., Assimopoulou A.N., Gianovits-Argyriadou N., Kanaze F.I., Papageorgiou V.P.: "Phytochemical analysis of Anchusa arvensis roots". 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF, Natural Products with pharmaceutical, nutraceutical, cosmetic and agrochemical interest, Athens August 3-8 2008, Book of abstracts, Planta Medica, Issue 09, Volume 74, July, p. 1098 (2008).
64. Assimopoulou A.N., Karapanagiotis I., Papageorgiou V.P.: "Purification of commercial Alkannin and Shikonin samples". 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF, Natural Products with pharmaceutical, nutraceutical, cosmetic and agrochemical interest, Athens August 3-8 2008, Book of abstracts, Planta Medica, Issue 09, Volume 74, July, p. 1099 (2008).
65. Kontogiannopoulos K.N., Assimopoulou A.N., Papageorgiou V.P.: "Liposome formulations of shikonin". 7th Joint Meeting of GA, AFERP, ASP, PSE & SIF, Natural Products with pharmaceutical, nutraceutical, cosmetic and agrochemical interest, Athens August 3-8 2008, Book of abstracts, Planta Medica, Issue 09, Volume 74, July, p. 1100 (2008).
66. S.K. Tsermentseli, S.A. Ordoudi, A.N. Assimopoulou, M.Z. Tsimidou, V.P. Papageorgiou: "Structure activity relationship studies between bioactive naphthazarin derivatives in terms of their radical scavenging activity with crocin bleaching assay". 7th Panhellenic Scientific Chemical Engineering Congress, Patras (2009).
67. K.N. Kontogiannopoulos, A.N. Assimopoulou, V.P. Papageorgiou: "Stability of Shikonin–Loaded Liposomes". 6th International Conference on “Nanosciences & Nanotechnologies” – NN09, Thessaloniki, July 13-15 (2009).
68. A.N. Assimopoulou, M. Ganzera, H. Stuppner, V.P. Papageorgiou: "Determination of penta- and tetra- cyclic triterpenes in Pistacia lentiscus resin". 57th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research, Geneva, 16-20 August 2009; Book of abstracts, Planta Medica Vol. 75, Issue 9, July (2009).
69. E. Noula, V.F. Samanidou, A.N. Assimopoulou, V.P. Papageorgiou, I.N. Papadoyannis: "Solid phase extraction (SPE) for purification of alkannin/shikonin samples and isolation of monomeric and dimeric A/S fractions". 6th International Conference "Instrumental Methods of Analysis - IMA 2009", Athens, Greece, 4 - 8 October (2009).
70. S.K. Tsermentseli, S.A. Ordoudi, A.N. Assimopoulou, M.Z. Tsimidou, V.P. Papageorgiou: "Structure radical scavenging activity relationship of Alkannin/Shikonin derivatives". 14th Hellenic Symposium of Medicinal Chemistry, Thessaloniki, May (2010).
72. K.Ν. Kontogiannopoulos, A.Ν. Assimopoulou, I. Tsivintzelis, C. Panayiotou and V.P. Papageorgiou: "Encapsulation of shikonin in nanofibers". 8th Panhellenic Scientific Chemical Engineering Congress, Thessaloniki, May (2011).
73. A.N. Assimopoulou, K.N. Kontogiannopoulos, V.P. Papageorgiou: "Alkannins and Shikonins: from ancient codes to modern medicine". Invited lecture, Training School of the COST action TD0802, Athens (Greece), October 4-9 (2011).