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Galya Ivanova

Faculty of Science, Department of Chemistry
University of Porto

Publications

Galya Ivanova Ivanova

List of publications

1. L. Terlemezian, M. Mihailov, L. Kamburova, B. Ivanova, B. Gantchev and G. Ivanova, Preparation and Investigation of Methyl Methacrylate-butadiene-styrene Graft Copolymers and Their Mixtures with Poly(vinyl chloride), Acta Polymerica, 40 (1989) 279-281.

2. G. Eneva, B. Nikolova-Damyanova, S. Spassov and M. Haimova, Determination of Nebramycin Components by TLC and Densitometry, J. Planar Chromatogr., 3 (1990) 232-235.

3. G. Eneva, S. Spassov and M. Haimova, Complete 1H and 13C NMR Assignments for Kanamycin A, Kanamycin B and Penta-N-acetyl-kanamycin B, Spectrochim. Acta, 47A (1991) 875-880.

4. G. I. Eneva, S. L. Spassov, M. A. Haimova and J. Sandstroem, Complete 1H and 13C NMR Assignment for Apramycin, Sisomicin and Some N- and N,O-Polyacetylated Aminoglycosides, Magn. Res. Chem., 30 (1992) 841-846.

5. G. I. Eneva, S. L. Spassov and M. A. Haimova, Conformational analysis of sisomicin and penta-N- di-O-acetylsisomicin using NMR spectroscopy and molecular mechanics calculations, J. Mol. Struct., 291 (1993) 191-195.

6. G. I. Eneva, S. L. Spassov and M. A. Haimova, Complete 1H and 13C NMR chemical shift assignments for some N-polyformylated aminoglycoside antibiotics, Spectroscopy Letters, 28 (1995) 69-80.

7. S. Simova and G. I. Ivanova, Proton and Carbon Chemical Shift Assignment and Solution Stat Conformation of the Macrolid Antibiotic Tylosin in Aprotic Solvents, Magn. Res. Chem. 34 (1996) 255-260.

8. A. Z. Khan, G. I. Ivanova, S. L. Spassov and J. Sandstroem, Stereochemical Studies of 1,2-Di(thio)acetamidocyclohexanes and their N,N’-Dimethyl Derivatives by NMR and CD Spectroscopy and by Molecular Mechanics Calculations, Acta Chem. Scand., 50 (1996) 938-951.

9. E. W. Randall, N. Mahieu and G. I. Ivanova, NMR Studies of Soil, Soil Organic Matter and Nutrients: Spectroscopy and Imaging, Geoderma, 80 (1997) 307-325.

10. V. Enchev, G. Ivanova, A. Ugrinov, G. Neykov, S. Minchev and N. Stoyanov, Ab initio quantum chemical and NMR study of the symmetric monooximes of 1,2,3-phenalentrione and 1,2,3-indantrione, J. Mol. Struct., 440 (1998) 227-235.

11. J. Popova, E. Najdenova, N. Stoyanov, G. Ivanova and I. Mancheva, Gas-Mass Spectroscopic Investigation of HCN Addition Products of Some Substituted 2,3-Diphenylindenones, Comp. Rend. Acad. Bulg. Sci., 52 (1999) 39-42.

12. V. Enchev, G. Ivanova, A. Ugrinov and G. D. Neykov, Tautomeric and Conformational Equilibrium of Acenaphthenequinonemonooxime, J. Mol. Struct., 508 (1999) 149-161.

13. L. S. Changov, E. D. Najdenova, G. I. Ivanova, R. T. Gergova, E. E. Keuleyan and B. V. Aleksiev, Synhesis and beta-Lactamase Iinhibitory Activity of New 6-beta-Cysteinesulfonamidopenicillanic Acids, Bioorganic and Medicinal Chemistry, 7 (1999) 2899-2904.

14. V. Enchev, S. Bakalova, G. Ivanova and N. Stoyanov, Excited state intramolecular proton transfer in 2-acetylindan-1, 3-dione, Chem. Phys. Lett., 314 (1999) 234-238.

15. G. Ivanova and E. W. Randall, 1H and 13C NMR study of soil organic matter at 14.1 T, Bulgarian Chem. Comm., 31 (1999) 172-183.

16. E. Naydenova, J. Popova, G. Ivanova and M. Georgieva, Synthesis of 3-aminocycloalcanespirohydantoins modified with aminoacids and peptides, Bulgarian Chem. Comm., 33 (2001) 16-22.

17. G. Ivanova and V. Enchev, Does tautomeric equilibrium exist in ortho-nitrosonaphthols?, Chem. Phys., 264 (2001) 235-244.

18. V. Enchev, A. Ahmedova, G. Ivanova, I. Wawer, N. Stoyanov and M. Miteva, Quantum chemical and spectroscopic study of 2-acetylindan-1, 3-dion complexes with metal(II) ions, J. Mol. Struct., 595 (2001) 67-76.

19. V. Enchev, N. Stoyanov and G. Ivanova, Tautomerism and phototautomerism of derivatives of cyclic -diketones Proceedings of the Second Scientific Conference, University of Russe, 38, (2001) 196-201.

20. D. Dimov, P. Penev, S. Halagova, N. Angelova, G. Grozdanov and G. Ivanova, Synthesis of asym-disubstituted hydrazines using N-amination of secondary amines by hydroksylamine-o-sulfonic acid via lithium salts of the amines as N-H acids, Proceedings of the Second Scientific Conference, University of Russe, 38, (2001) 156-157.

21.G. Ivanova, I. Abrahams and V. Enchev, Structure of the symmetric monooxime of 1,2,3-indantrione in gas, solution and solid state, J. Mol. Struct., 608 (2002) 193-200.

22. G. Ivanova and E. W. Randall, 13C NMR and Mass Spectrometry of Soil Organic Matter, Central European Journal of Chemistry, 1 (2003) 10-27.

23. V. Enchev, G. Ivanova, G. Pavlovic, M. Rogojerov, A. Ahmedova and M. Miteva, Reaction of 2-acetyl-indan-1,3-dione with aniline – Schiff base or enamine?, J. Mol. Struct., 654, (2003) 11-20.

24. V. Bojinov, G. Ivanova, J. Chovelon and I. Grabchev, Photophysical and photochemical properties of some 3-bromo-4-alkylamino-N-alkyl-1,8- naphthalimides, Dyes and Pigments, 58 (2003) 65-71.

25. D. Christova, S. Ivanova and G. Ivanova, Water soluble temperature-responsive poly(vinyl alcohol-co-vinylacetal)s, Polym. Bull., 50 (2003) 367-372.

26. N. Stoyanov, G. Ivanova and S. Minchev, Synthesis of 2-(2-thienyl)-3-hydroxyphenalene-1-ones and 3-(2-thienylmethylene)-1H,3H-naphtho-[1,8-c,d]-pyran-1-ones, Bulg. Chem. Ind., 74 (2003) 103-107.

27. I. Grabchev, J. Chovelon, V. Bojinov and G. Ivanova, Poly(amidoamine) Dendrimers Peripherally Modified with 4-Ethylamino-1,8-Naphthalimide, Tetrahedron, 59 (2003) 9591-9598.

28. S. Simova, G. Ivanova and S.L. Spassov, Alternative NMR Methods for quantitative determination of acyl positional distribution in triacylglycerols and related compounds, Chem. Phys. Lipids, 126 (2003) 111-120.

29. M. Simeonova , R. Velichkova, G. Ivanova, V. Enchev and I. Abrahams, Poly(butylcyanoacrylate)nanoparticles as a topical drug delivery system for 5- fluorouracil, Int. J. Pharmaceutics, 263 (2003) 133-140.

30. V. Enchev, G. Ivanova and N. Stoyanov, Tautomeric and conformational equilibrium of 2-nitrosophenol and 9,10-phenanthrenequinonemonooxime – an ab initio and NMR study, J. Mol. Struct: THEOCHEM, 640 (2003) 149-162.

31. M. Simeonova, R. Velichkova, G. Ivanova, V. Enchev and I. Abrahams, Study on the role of 5-fluorouracil in the polymerization of butylcyanoacrylate during the formation of nanoparticles. J. Drug Targeting, 12, (2004) 49-56.

32. V. Bojinov, G. Ivanova and D. Simeonov, Synthesis and Photophysical Investigations of Novel Polymerizable Blue Emitting Fluorophores-Combination of a Hindered Amine with a Benzo[de]isoquinoline-1,3-dione, Macromolecular Chem. Phys., 205 (2004) 1259-1268.

33. M. Georgieva, L. Vezenkov, Tch. Ivanov and G. Ivanova, Design and synthesis of new -secretase inhibitors Bulg. Chem. Comm., 57 (2004) 13-18.

34. I. Grabchev, J. Soumillion, B. Muls and G. Ivanova, Poly(amidoamine)dendrimer peripherally modified with 4-N,N-dimethylaminoethyleneamino-1,8-naphthalimid as a sensor of methal cations and protons, Photochem. Photobiol. Sci., 3 (2004) 1032-1037.

35. V. Enchev, I. Abrahams, S. Angelova and G. Ivanova, Fast Intramolecular Proton Transfer in 2-(hydroxyaminomethylidene)-indan-1,3-dione, J. Mol. Struct.: THEOCHEM, 719 (2005), 169-175.

36. M. Marinov, S. Minchev, N. Stoyanov, G. Ivanova, M. Spassova and V. Enchev, Thioanalogues of spirohydantoins, Croatica Chemica Acta, 78 (2005) 9-16.

37. M. Marinov, N. Stoyanov and G. Ivanova, Study on the stability against oxidation of 3-methyl derivatives of spirohydantoins and spirodithiohydantoins, Oxid. Comm., 28 (2005) 126-130.

38. Mokreva P, Tsocheva D, Ivanova G, Terlemezyan L., Copolymers of aniline and o-methoxyaniline: Synthesis and characterization, J. Appl. Polym. Sci. 98 (2005) 1822-1828

39. M.G. Spasova, G.I. Ivanova, L.N. Georgiev and T.S. Milkova, Synthesis of new cinnamoyl- and feruloylamino acid derivatives, J. Pept. Sci., 2004, accepted

40. M. Georgieva, L. Vezenkov, Tch. Ivanov, G. Ivanova. Design and synthesis of optically active potential inhibitors of the uptake of neuromediators (DA, NE, 5-HT) and  secretase. Peptides 2004, Proceedings of 3-th International and 28-th European Peptide Symposium, 688-689, 2005.

41. M. Spasova, V. Bankova, G. Ivanova, T. Pajpanova and T. Milkova, Synthesis of Esters of Substituted Phenolic Acids by Micro Wave Assisted Wittig Reaction, Oxid. Commun., 29 (2006) 172-175.

42. P. Mokreva, D. Tsocheva, G. Ivanova and L. Terlemezyan, Copolymers of aniline and o-methoxyaniline: synthesis and characterization, J. Appl. Polym. Sci., 99 (2006) 75-81

43. M.S. Refat, I. Grabchev, J.-M. Chovelon and G. Ivanova, New N,N’-bis-alkyl-1,4,6,8-naphthalenediimide complexes. Synthesis and Photophysical Properties, Spectrochimica Acta Part A., 64 (2006) 435-441.

44. M. Spasova, V. Kortenska-Kancheva, I. Totseva, G. Ivanova, L. Georgiev and T. Milkova, Synthesis of Cinnamoyl and Hydroxycinnamoyl-amino acid conjugates and evaluation of their antioxidant activity. J. Pept. Sci., 12 (2006) 369-375.

45. M.G. Spasova, G.I. Ivanova, H. Weber, A. Ranz, E. Lankmayr and Ts. S. Milkova, Microwave-accelerated synthesis of amides of substituted cinnamic acids by Wittig reaction, Bulg. Chem. Comm., 38 (2006) 27-30.

46. . M.G. Georgieva, L.T. Vezenkov, Tch.B. Ivanov, G.I. Ivanova, Design and synthesis of potential inhibitors of the uptake of neuromediators and - secretase, Bulg. Chem. Comm, 38 (2006) 14-16.

47. S. Angelova, V. Enchev, K. Kostova, M. Rogojerov, G. Ivanova, Theoretical and Spectroscopic Study of 2-Substituted Indan-1,3-Diones: a Coherent Picture of the Tautomeric Equilibrium, THE JOURNAL OF PHYSICAL CHEMISTRY, 111 (2007) 9901-9913.

48. Spasova, M., Ivanova, G., Nicolaeva-Glomb, L., Milkova, T. New cinnamoyl amides of nonproteinogennic fluorinated amino acids and their biological activity. AMINO ACIDS 33 (3): LXVI-LXVI SEP 2007.

49. Spasova, M., Ivanova, G., Pajpanova, T., Milkova, Ts.. Halogenation of substituted cinnamic acid amides. AMINO ACIDS 33 (3): LXVI-LXVI SEP 2007.

50. Stoineva, I., Ivanova, G., Petkov, D. Aminoacylation of unprotected saccharides. AMINO ACIDS 33 (3): LXVII-LXVII SEP 2007.

51. Spasova, M., Ivanova, G., Weber H., Ranz A., Lankmayr E., Milkova, T. Amides of substituted cinnamic acids with aliphatic monoamines and their antioxidative potential. Oxidation Communications 30 (4) (2007) 803-813.

52. I. Abrahams, G.E.Hawkes, A. Ahmed1, T. Di Cristina, D.Z. Demetriou , G.I. Ivanova, Structures of the chain metaphosphates NaM(PO3)3 (M = Ca or Sr, Magn. Res. Chem., 46 (2008) 316-322.

53. M. Gottschalk, G. Ivanova, D. M. Collins, A. Eustace, R. O’Connor, D. F. Brougham. Metabolomic studies of human lung carcinoma cell lines by in vitro 1H nuclear magnetic resonance of whole cells and cellular extracts. NMR in Biomedicine. 21 (2008) 1-11.

54. G. I. Ivanova , E. J. Cabrita, R. O´Connor, A. Eustace, D. F. Brougham. Application of diffusion ordered spectroscopy for the analysis of cancer related biological samples. Bulg. Chem. Comm, 40(4) (2008) 464-468.

55. G. I. Ivanova , E. R. Vão , M. Temtem , A. Aguiar-Ricardo , T. Casimiro, E. J. Cabrita. High- Pressure NMR Characterization of Triacetyl--Cyclodextrin in Supercritical Carbon Dioxide. Magn. Res. Chem., 46 (2008) 316-322.

56. M. Simeonova, G. Ivanova, V. Enchev, N. Markova, M. Kamburov, Ch. Petkov, A. Devery, R. O’Connor,
D. Brougham. Physicochemical characterization and in vitro behavior of daunorubicin-loaded poly(butyl- cyanoacrylate) nanoparticles. Acta Biomaterialia 5 (2009) 2109–2121.

57. Lyubomir T. Vezenkov, Maria G. Georgieva, Dantcho L. Danalev, Tchavdar B. Ivanov, Galya I. Ivanova.
Synthesis and characterization of new galanthamine derivatives comprising peptide moiety.
Protein & Peptide Letters, 16 ( 2009) 1024-1028.

58. G. Ivanova, L. S. Serafim, P. C. Lemos, A. M. Ramos, M. A. M. Reis and E. J. Cabrita. Influence of feeding strategies strategies ofmixed microbial cultures on the chemical composition and microstructure of copolyesters
P(3HB-co-3HV) analyzed by NMR and statistical Analysis. Magn. Reson. Chem. 47, (2009) 497–504.

59. Maya Spasova, Djemile Dagon, Galya Ivanova, and Tsenka Milkova. Free Radical Scavenging Activity of
Hydroxycinnamoyl Amino Acid Amides. Peptides: Breaking Away. Proceedings of the 21st American Peptide
Symposium. Michal Lebl (Editor). American Peptide Society, 2009, page 84-85.

60. Galya Ivanova, Boryana Yakimova, Silvia Angelova, Ivanka Stoineva, Venelin Enchev. Influence of pH on the cis-trans isomerization of Valine-Proline dipeptide: an integrated NMR and theoretical investigation. J. Mol. Struct., 975 (2010) 330-334.

61. Ivone Peres, Sandra Rocha, Maria do Carmo Pereira, Manuel Coelho, Maria Rangel, Galya Ivanova. NMR structural analysis of epigallocatechin gallate loaded polysaccharide nanoparticles. Carbohydrate Polymers 82 (2010) 861–866.

62. Maya G. Chochkova, Hristina G. Nikova, Galya I. Ivanova, Lyubomir N. Georgiev, Tsenka S. Milkova. Radical Scavenging Activity of Hydroxycinnamoylamides of Amino Acids - Precursors of Biogennic Amines. , In Peptides, Michal Lebl, Morten Meldal, Knud J. Jensen, Tomas Hoeg-Jensen (Eds), 2010, page 56 – 57.

63. D. F. Brougham, G. Ivanova, M. Gottschalk, D.M. Collins, A. Eustace, R. O’Connor, J. Havel. Artificial Neural Networks for Classification in Metabolomic Studies of Whole Cells Using 1H Nuclear Magnetic Resonance. Journal of Biomedicine and Biotechnology, Volume 2011 (2011), Article ID 158094, 8 pages; doi:10.1155/2011/158094.

64. Nadezhda Markovaa, Venelin Encheva, Galya Ivanova. Tautomeric equilibria of 5-fluorouracil anionic species in water. J. Phys. Chem. A, 114 (2010) 13154–13162; doi: 10.1021/jp1063879.

65. Galya Ivanova, Margarita Simeonova, Eurico J. Cabrita, Maria Rangel. NMR insight into the supramolecular structure of daunorubicin loaded polymer nanoparticles. J. Phys. Chem. B 115 (2011) 902–909; doi: 10.1021/jp109738e.

66. Christova, N., Tuleva, B. , Cohen, R., Ivanova, G. , Stoev, G. , Stoilova-Disheva, M. , Stoineva, I. Chemical Characterization and Physical and Biological Activities of Rhamnolipids Produced by Pseudomonas aeruginosa BN10. Zeitschrift fur Naturforschung - Section C Journal of Biosciences, 66 C (7-8) (2011) 394-405.

67. Lyubomir Georgiev, Maya Chochkova, Galya Ivanova, Hristo Najdenski, Mariana Ninova,Tsenka Milkova. Radical scavenging and antimicrobial activities of cinnamoyl amides of biogenic monoamines. La rivista italiana delle sostanze grasse, 2011, in press.

68. Lyubomir Georgiev, Mikhail Kolev, Galya Ivanova, Zhivko Velkov. Radical Scavenging Activity Modeling of Hydroxycinnamic acid Derivatives . In “TOPICS in CHEMISTRY and MATERIAL SCIENCE”, 2011, in press.

69. Carla Queirós, Ana M. G. Silva, Sílvia C. Lopes, Galya Ivanova, Paula Gameiro, Maria Rangel. A novel fluorescein-based dye containing a catechol chelating unit to sense iron (III). Dyes and Pigments, 2011, in press.

70. Nadezhda Markova, Galya Ivanova, Venelin Enchev, Margarita Simeonova. Tacticity of poly(butyl-α-cyanoacrylate) chains in nanoparticles: NMR spectroscopy and DFT calculations. Structural Chemistry (2011), in press, DOI 10.1007/s11224-011-9928-3.

71. Ivone Peres, Sandra Rocha, Maria do Carmo Pereira, Galya Ivanova, Manuel Coelho. Carbohydrate particles as protein carriers and scaffolds: physico-chemical characterization and collagen stability. Journal of Nanoparticle Research, 2011, submitted.

72. Silvia Lopes, Margarita Simeonova, Paula Gameiro, Maria Rangel, Galya Ivanova. Interaction of 5-fluorouracil loaded nanoparticles with DMPC liposomes used as a cellular membrane model. J. Phys. Chem. B, 2011, accepted.

73. Maya G. Chochkova, Elitsa Y. Chorbadzhiyska, Galya I. Ivanova , Hristo Najdenski, Mariana Ninova and Тsenka S. Milkova,. Antimicrobial and Radical Scavenging Activities of N-Hydroxycinnamoyl – L-Cysteine and - L -Proline Ethyl Esters. The Natural Products Journal, 2011, submitted.


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