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Created 7.2.2018
Updated 31.5.2018

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Biography
Alexander Georgiev Petrov
Emeritus Prof., Sc.D., Fellow of BAS

Born: in Stara Zagora (27.05.1948)

Education:

  1. (1987) DSc in Physics from Bulgarian Academy of Sciences, Sofia. DSc Thesis: Molecular Physics and Biophysical Aspects of Lyotropic Liquid Crystalline State of Matter

  2. (1974) PhD in Physics from Bulgarian Academy of Sciences, Sofia. PhD Thesis: Electric Polarization of Nematic Liquid Crystals: Dielectric and Flexoelectric Properties

  3. (1966 – 1970) MSc in Atomic Physics from St. Kliment Ochridski University of Sofia. Master Thesis: Dielectric Properties of Nematic Liquid Crystals with Ellipsoidal Molecules

Professional Experience

  1. (2006 – 2015) Head of Soft Matter Division, ISSP-BAS

  2. (2003) Fellow of the Bulgarian Academy of Sciences

  3. (1999 – 2015) Director, Institute of Solid State Physics-BAS

  4. (1991 – 2008) Head of Biomolecular Layers Department, ISSP-BAS

  5. (1990 – 2017) Professor, ISSP-BAS

  6. (1984 – 1990) Associate Professor, ISSP-BAS

  7. (1974 – 1989) Scientific Secretary of Sofia Liquid Crystal Group

  8. (1974 – 1984) Assistant Professor, ISSP-BAS

  9. (1971 – 1974) Research Scientist, Liquid Crystal Department, Institute of Solid State Physics (ISSP), Bulgarian Academy of Sciences (BAS), Sofia

Research:
    Area: Liquid crystal physics, membrane biophysics and biomolecular electronics: Six new effects in liquid crystal physics and in living matter physics are discovered experimentally and interpreted theoretically, notably bioflexoelectricity and biohelielectricity. These new effects are applied in optoelectronics, nanotechnology, membrane biophysics. Holder of five patents on liquid crystal display devices

    Guest-Lecturer:

    1. (2008, 2010, 2013) Visiting Professor, Centre for Liquid Crystal Research, Bangalore

    2. (2008) Invited Professor, Liquid Crystal Institute, Kent, Ohio

    3. (2004, 2006) Invited Professor, Universita della Calabria

    4. (2003) Visiting Professor, SUNY Buffalo

    5. (2002) JSPS Fellowship, Japan

    6. (2001) NATO Expert Visitor, SUNY Buffalo

    7. (1999-2001) Bulgarian Principal Investigator, NATO Linkage Grant with Nottingham University

    8. (1997) Visiting Scholar, Leipzig University

    9. (1996-1997) Bulgarian Principal Investigator, Royal Society Collaborative Grant with Nottingham University

    10. (1994-1996) Bulgarian Principal Investigator, NATO Collaborative Research Grant with Sheffield Hallam University

    11. (1994) Invited Professor, Universita della Calabria

    12. (1994) EC Senior Go West Grantee, Nottingham University

    13. (1993) NSF Visiting Scholar, Syracuse University, USA

    14. (1993) Invited Professor, Universite de Paris-Sud, Orsay

    15. (1991-1996) Bulgarian Principal Investigator, British Council Academic Link with Nottingham University

    16. (1989-1990) SERC Senior Research Fellow, Nottingham University

    17. (1988) Guest-Professor, Technical University, Munich

    18. (1980) Leipzig University

    Administrative Experience:
    1. (2015) Honorary Member of ISSP-BAS

    2. (2015) President, Union of the Physicists in Bulgaria (2010 - 2017). President, Balkan Physical Union

    3. (2009) Chairman of the Natural and Mathematical Sciences Division of the Fellows of BAS’ Assembly

    4. (2009-2015) Chairman of the Consultative Council on Nanosciences, new materials and technologies at the Administrative Council of BAS

    5. (2005) 1st Award for a Completed Project of the Ministry of Education and Science of Bulgaria

    6. (2003-2010) Chairman of the Specialized Scientific Council on Condensed Matter Physics at the Higher Attestation Commission of the Republic of Bulgaria

    7. (2003) Fellow of the World Innovation Foundation

    8. (2002) Member, Editorial Council of the journal Zhidkie Kristalli, Ivanovo

    9. (2001 and 2003) Co-organizer of the 1st and 2nd World Congress on Bioflexoelectricity, Buffalo and Houston

    10. (2000) President, Bulgarian Liquid Crystal Society

    11. (2000) Member, Intern. Adv. Board, Lyotropic Liquid Crystal Conference, Ivanovo

    12. (1998) Member, Research Board of Advisors, The American Biographical Institute

    13. (1995-2000) Member of the Editorial Board, Europhysics News

    14. (1995-1999) Chairman of the Scientific Council, ISSP-BAS

    15. (1995-2001, 2007-2010) Vice President, Union of the Physicists of Bulgaria

    16. (1994-1997) Member of the Higher Attestation Commission of the Republic of Bulgaria

    17. (1993) Member of the International Advisory Committee; 2nd Liquid Matter Conference of EPS; Firenze

    18. (1992) Member of the Administrative Council, Union of the Physicists of Bulgaria

    19. (1991) Advisory Editor, European Biophysics Journal

    20. (1989-1999) Member of the International Advisory Board of the European Liquid Crystal Conferences

    21. (1987) Guest-Editor, Molecular Crystals and Liquid Crystals

    22. (1987) Vice-Chairman, 5th European Liquid Crystal Conference, Borovets, Bulgaria

    23. (1984) Scientific Secretary, International School-Colloquium "Lyotropics and Biomembranes", Varna, Bulgaria

    24. (1977) Scientific Secretary, 2nd Liquid Crystal Conference of E.European Countries, Sunny Beach, Bulgaria

    Awards:
    1. (10 May 2018) „St. Kyril and Methodius“ state medal – necklace

    2. (2008) Marin Drinov sign of honour of BAS on a ribbon

    3. (2007) Annual Award of the Ministry of Education and Science of Bulgaria for outstanding contribution to science

    4. (2004) Freedericksz medal of the Russian Liquid Crystal Society for outstanding achievements in liquid crystal physics.

    5. (2000) Biennial award in Physics, Bulgarian Academy of Sciences

    6. (1999) Award, National Council “Scientific Studies”, Ministry of Education and Science of Bulgaria

    International Recognitions:
    1. (2012) Flexoelectricity in Liquid Crystals. Theory, Experiments and Applications. Chapter 6. Imperial College Press, London

    2. (2007) Current Topics in Membranes, vol. 58: Mechanosensitive channels, Elsevier/Academic Press

    3. (2006) Analytica Chimica Acta, Elsevier

    4. (2003) Invited book chapters in “Planar Lipid Bilayers (BLMs) and their Applications”, Elsevier Science

    5. (2002) BBA-Biomembranes, Elsevier

    6. (2001) EMIS Datareviews Series

    7. (1994) European Biophysics Journal, Springer

    8. (1984) Monographic review in Progress of Surface Science

    9. (1983) Invited reviews in Mendeleev Journal of All-Union Chemical Society

    Publications:

    1. (2014) A.G.Petrov, “Living Matter Physics” Marin Drinov Academic Edition, Sofia

    2. (1999) A.G.Petrov, "The Lyotropic State of Matter. Molecular Physics and Living Matter Physics", Monograph: Gordon & Breach Publ, New York

    3. (1987) A. G. Petrov, A. Derzhanski, Generalized asymmetry of thermotropic and lyotropic mesogens, Mol. Cryst. Liq. Cryst. 151, 303

    4. (1986) A. G. Petrov, V. S. Sokolov, Curvature electric effect in black lipid membranes, Eur. Biophys. J. 13, 139

    5. (1986) A. G. Petrov, L. Mircevova, Is flexoelectricity the coupling factor between chemical energy and osmotic work in the pump? A model of pump, Gen. Physiol. Biophys. 5, 391

    6. (1986) A. Derzhanski, A. G. Petrov, M. D. Mitov, Future development of the multipole model of molecular asymmetry in thermotropics and lyotropics. Dependence of the generalized multipoles on the generalized fields, Wiss. Beitrage MLU Halle 52, 170

    7. A. G. Petrov, Molecular physics and biophysical aspects of lyotropic liquid crystal state of matter (in Bulgarian), D.Sc. Thesis, Inst Solid State Physics, Bulg Acad Sci, Sofia (1986), 507 pp.

    8. A. G. Petrov, Flexoelectricity of lyotropics and biomembranes, Nuovo Cimento 3D, 174 (1984)

    9. (1984) A. G. Petrov, M. M. Kozlov, Curvature elasticity and passage formation in lipid bilayers. Lattice of passages, Compt. rend. Acad. bulg. Sci. 37, 1191

    10. (1984) V. F. Pastushenko, A. G. Petrov, Electromechanical mechanism of pore formation in bilayer lipid membranes, Seventh School Biophys. Membrane Transport, Poland 1984, Proceedings, vol. II, pp 69 91 Wroclaw

    11. (1984) A.G.Petrov, I. Bivas, Elastic and flexoelectric aspects of out of plane fluctuations in biological and model membranes, Progress in Surface Sci., Ed. S. Davison, 16, 389 512

    12. (1983)L. Komitov, A. G. Petrov, Optical method for determination of anchoring energy of tilted nematic layers, phys. stat. sol.(a) 76, 137

    13. A. Hauser, G. Pelzl, C. Selbmann, D. Demus, S. Grande, A. Petrov, Order parameter and molecular polarizabilities of liquid crystals with nematic and smectic phases, Mol. Cryst. Liq. Cryst. 91, 97 (1983)

    14. K. Gawrisch, M. D. Mitov, A. Mops, A. G. Petrov, Bestimmung der Phasenubergangstemperaturen lyotroper flussig-crystalliner, Systeme mittels Microscopie im polarisierten Licht, Wiss. Ber. Karl Marx Universitat Leipzig, 32, 80 (1983)

    15. L. Komitov, A. G. Petrov, Quasihomeotropic, reversely pretilted hematic liquid crystal layers. Electrooptical behaviour, phys. stat. sol. (a) 79, 623 (1983)

    16. L. Komitov, A. G. Petrov, A novel polar electrooptic effect in reversely pretilted nematic liquid crystal layers with weak anchoring, Japan Display '83: Proc. 3rd Int. Display Res. Conf. (Kobe, 1983) p. 482.

    17. A.Derzhanski, A.G.Petrov, M.D.Mitov, A.Kolinkoeva, The biological membrane as a liquid crystalline system in the cryoconcervation process (in Bulgarian), in: Cryobiology of Sex Cells, Ed. K. Bratanov, Bulg. Acad. Sci. Publ. House, Sofia, 1983, pp 12 35

    18. S. A. Seleznev, A. G. Petrov, Short and long range interactions of proteins and mesomorphic lipids within biological membranes, Compt. rend. Acad. bulg. Sci. 36, 615-618 (1983)

    19. A. G. Petrov, G. Durand, Thermal instability in lamellar phases of lecithin: a planar undulation model, J. Physique Lett. 44, L 793 (1983).

    20. K.Gawrisch, K. Arnold, A. G. Petrov, G. Brezesinski, A.Mops, A.Losche, G. Klose Optical, DSC and 31P NMR investigations of phase separation in phosphatidylcholine/phosphatidylethanolamine mixtures, studia biophysica, 90, 131 (1982)

    21. A. G. Petrov, K. Gawrisch, G. Brezesinki, G. Klose, A. Mops, Optical detection of phase transitions in simple and mixed lipid water systems, Biochim. Biophys. Acta 690, 1 (1982)

    22. A. G. Petrov, M. D. Mitov, Defects in lipid bilayers and their influence on membrane fusion, Studia biophysica 90, 223 (1982)

    23. G. Klose, A. G. Petrov, F. Volke, H. W. Meyer, G. Forster, W. Rettig, Self assembly and phase behaviour of short chain phosphonic acid water systems in a wide concentration range. Microscopic, NMR and X ray diffraction studies, Mol. Cryst. Liq. Cryst. 88, 109 (1982)

    24. A. Derzhanski, A. G. Petrov, Multipole model of the molecular asymmetry in thermotropic and lyotropic liquid crystals. Volume and surface effects, Mol. Cryst. Liq. Cryst. 89, 339 (1982)

    25. A. Derzhanski, A. G. Petrov, Y. V. Pavloff, Curvature induced conductive and displacement currents through lipid bilayers, J. Physique Lett. 42, L 119 (1981)

    26. I. Bivas, A. G. Petrov, Flexoelectric and steric interactions between two lipid bilayer membranes resulting from their curvature fluctuations, J. theor. Biol. 88, 459-483 (1981)

    27. A. G. Petrov, The problem of self assembly of lipids and proteins into liquid crystalline membrane structures, Sixth School Biophys. Membrane Transport, Poland (1981) Proceedings, vol. 1, p. 116

    28. A. G. Petrov, H. Frischleder, On the theory of domain formation in mixed lipid systems, Chem. Phys. Lipids, 29, 165 (1981)

    29. I. I. Gorina, N. L. Sizova, I. G. Chistyakov, A. G. Petrov, A. Derzhanski, The observation of hydrodynamic instability in a cholesteric liquid crystal having a free surface, Mol. Cryst. Liq. Cryst. 66, 159 (1981)

    30. N. Aneva, A. G. Petrov, S. Sokerov, S. Stoylov, Dynamics of the Freedericksz transition in the electric field in non ideally oriented nematic layers at subthreshold and above threshold voltages, Mol. Cryst. Liq. Cryst. 60, 1 (1980).

    31. A. G. Petrov, S. Naydenova, Stabilization of foam films of nonionic detergents by liquid crystals, J. Disp. Sci. Technol. 1, 283 (1980).

    32. A. Derzhanski, A. G. Petrov, I. Bivas, Molecular asymmetry, flexoelectricity and elasticity of nematics, Advances in Liq. Cryst. Res. and Appl., Ed. L. Bata, Pergamon Press, Oxford Akad. Kiado, Budapest, vol. 1, p. 505 (1980).

    33. A. Derzhanski, A. G. Petrov, Gradient flexoelectric effect and longitudinal domains in nematics, Advances in Liq. Cryst. Res. and Appl., Ed. L. Bata, Pergamon Press, Oxford Akad. Kiado, Budapest, vol. 1, p. 515 (1980).

    34. A. G. Petrov, M. D. Mitov, A. Derzhanski, Edge energy and pore stability in bilayer lipid membranes, Advances in Liq. Cryst. Res. and Appl., Ed. L. Bata, Pergamon Press, Oxford Akad. Kiado, Budapest, vol. 2, p. 695 (1980)

    35. L. K. Vistin', A. G. Petrov, N. T. Shonova, A. Derzhanski, Generation of low frequency electrical and optical oscillations in a system liquid crystal cell solar cell, Advances in Liq. Cryst. Res. and Appl., Ed. L. Bata, Pergamon Press, Oxford Akad. Kiado, Budapest, vol.2, p. 1213 (1980)

    36. A. G. Petrov, Electrohydrodynamic instability in planar, positive dielectric anisotropy nematic layers at d.c. excitation, J. Physique suppl. 40, C3 310 (1979)

    37. A. G. Petrov, Y.V.Pavloff, A new model for flexoelectric polarization of bilayer lipid membranes at blocked "flip flop", J. Physique suppl. 40, C3 455 (1979)

    38. A. G. Petrov, S. A. Seleznev, A. Derzhanski, Principles and methods of liquid crystal physics applied to the structure and functions of biological membranes, Acta. Phys. Polonica A55, 385 405 (1979)

    39. A. Derzhanski, A. G. Petrov, Flexoelectricity in nematic liquid crystals, Acta Phys. Polonica A55, 747 (1979)

    40. A. G. Petrov, The biomembrane as a liquid crystalline system, Fifth Winter School Biophysics, Membrane Transport, Poland (1979), Proceedings vol. 1, p. 297

    41. M. D. Mitov, A. G. Petrov, A. Derzhanski, Edge energy and pore stability in membranes molecular description, Fifth Winter School Biophysics, Membrane Transport, Poland (1979), Proceedings, vol. 2, p. 313

    42. A. Derzhanski, A. G. Petrov, M. D. Mitov, Electric field induced pores in erythrocyte membranes a discussion, Fifth Winter School Biophysics, Membrane Transport, Poland (1979) Proceedings, vol. 2, p. 285

    43. M. D. Mitov, A. G. Petrov, A new interpretation of the experiments on osmotic pressure induced pores in phospholipid vesicles, Proc. Colloques nationaux du C.N.R.S. No 938 Physicochimie des composes amphiphiles, p. 249 (1979)

    44. A.G.Petrov, V.A.Tverdislov, A.Derzhanski, Flexoelectric aspects of lipid protein interaction in biomembranes, Ann. Phys. 3, 273. 4 (1978).

    45. A. Derzhanski, A. G. Petrov, M. D. Mitov, Molecular asymmetry and saddle splay elasticity in lipid bilayers, Ann. Phys. 3, 297 (1978).

    46. A. G. Petrov, M. D. Mitov, A. Derzhanski, Saddle splay instability in lipid bilayers, Phys. Lett. 65A, 374 (1978)

    47. A. Derzhanski, A. G. Petrov, M. D. Mitov, One dimensional dielectric flexoelectric deformations in nematic layers, J. Physique 39, 273 (1978)

    48. A. G. Petrov, Mechanisms of curvature induced membrane polarization and their influence on some membrane properties, studia biophysica 74, 51 (1978), and Microphiche 4/ 14 25

    49. A. G. Petrov, Flexoelectric effects and transport phenomena in biomembranes, Fourth Winter School Biophys. Membrane Transport, Poland (1977) School Proceeding, vol. 3, p. 168 176

    50. A. G. Petrov, A. Derzhanski, Flexoelectricity and surface polarization, Mol. Cryst. Liq. Cryst. Lett. 41, 41 (1977).

    51. S. Sokerov, N. Aneva, P. Stefanov, A. G. Petrov, S. Stoylov, V. Encheva, Electrooptic study of nematic liquid crystal ZLI 207 (in Bulgarian), Izv. Khimia (Sofia) 9, 304 (1976)

    52. A. G. Petrov, A. Derzhanski, On some problems in the theory of elastic and flexoelectric effects in bilayer lipid membranes and biomembranes, J. Physique suppl. 37, C3 155 – C3-160 (1976)

    53. A. Derzhanski, A. G. Petrov, I. Bivas, One dimensional approach to the spontaneous deformations in nematic liquid crystals, Compt. rend. Acad. bulg. Sci. 28, 1327 (1975)

    54. A. G. Petrov, Flexoelectric model for active transport, In: Physical and Chemical Bases of Biological Information Transfer, Plenum Press, N. Y. L. (1975) p. 111.

    55. A. Derzhanski, A. G. Petrov, Chr. P. Khinov, B. L. Markovski, Piezoelectric deformations of nematic liquid cristals in nonhomogeneous d.c. electric field, Bulg. J. Phys. 1, 165 (1974)

    56. A. G. Petrov, Electric polarization of nematic liquid crystals dielectric and piezoelectric properties (in Bulgarian), Ph.D.Thesis, Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia 1974

    57. A. Derzhanski, A. G. Petrov, A molecular statistical approach to the piezoelectric properties of nematic liquid crystals one dimensional model, Compt. rend. Acad. bulg. Sci. 25, 167 (1972)

    58. A. Derzhanski, A. G. Petrov, Dielectric properties of nematic liquid crystal with ellipsoidal molecules, Compt. rend. Acad. bulg. Sci. 24, 569 (1971)

    59. A. G. Petrov, Molecular parameters and dielectric anisotropy of liquid crystal p-azoxyanisole, Compt. rend. Acad. bulg. Sci. 24, 573 (1971)

    60. A. Derzhanski, A. G. Petrov, A possible relationship between the dielectric permeability and the piezoelectric properties of nematic liquid crystals, Phys. Lett. 34A, 427 (1971).

    61. A. Derzhanski, A. G. Petrov, Inverse currents and contact behaviour of some nematic liquid crystals, Phys. Lett. 36A, 307 (1971)

    62. A. Derzhanski, A. G. Petrov, A molecular statistical approach to the piezoelectric properties of nematic liquid crystals, Phys. Lett. 36A, 483 (1971)

    63. A. Derzhanski, S. Naydenova, L. Grigorov, A. G. Petrov, NMR Fourier spectroscopy in liquid crystals, Proc. XVIth Congress AMPERE, Bucharest, p.841 (1971)

    References:
    1. "Who is Who in the World"

    2. "2000 Outstanding Scientists of 20th Century"

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