All Stories

  1. Intermolecular Electrostatic Interactions in Cytochrome c Protein Monolayer on Montmorillonite Alumosilicate Surface: A Positive Cooperative Effect

    Article • International Journal of Molecular Sciences, June 2024, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  2. Three-Dimensional Structural Stability and Local Electrostatic Potential at Point Mutations in Spike Protein of SARS-CoV-2 Coronavirus

    Article • International Journal of Molecular Sciences, February 2024, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  3. Omicron Coronavirus: pH-Dependent Electrostatic Potential and Energy of Association of Spike Protein to ACE2 Receptor

    Article • Viruses, August 2023, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  4. Composite Hydrogels with Included Solid-State Nanoparticles Bearing Anticancer Chemotherapeutics

    Article • Gels, May 2023, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  5. Protein–Mineral Composite Particles with Logarithmic Dependence of Anticancer Cytotoxicity on Concentration of Montmorillonite Nanoplates with Adsorbed Cytochrome c

    Article • Pharmaceutics, January 2023, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  6. Spontaneous and Electrically Induced Anisotropy of Composite Agarose Gels

    Article • Gels, November 2022, MDPI AG

    Professor Alexandar Metodiev Zhivkov

  7. Montmorillonite colloid plates with adsorbed cytochrome c: in vitro cytotoxic effect on colon cancer cell culture

    Article • Cancer Nanotechnology, August 2021, Springer Science + Business Media

    Professor Alexandar Metodiev Zhivkov

  8. Electrooptical determination of the isoelectric point of globular proteins: Cytochrome c adsorbed on montmorillonite nanoplates

    Article • Colloids and Surfaces B Biointerfaces, April 2019, Elsevier

    Professor Alexandar Metodiev Zhivkov

  9. Cytotoxic Effect of Exogenous Cytochrome C Adsorbed on Montmorillonite Colloid Particles on Colon Cancer Cell Culture

    Article • February 2019, Prof. Marin Drinov Academic Publishing House

    Professor Alexandar Metodiev Zhivkov

  10. Isoelectric point of free and adsorbed cytochrome c determined by various methods

    Article • Colloids and Surfaces B Biointerfaces, February 2019, Elsevier

    Professor Alexandar Metodiev Zhivkov

  11. Stability of aqueous suspensions of alumina particles with adsorbed (carboxymethyl)cellulose

    Article • Colloids and Surfaces A Physicochemical and Engineering Aspects, September 2017, Elsevier

    Professor Alexandar Metodiev Zhivkov

  12. Adsorption of carboxymethyl cellulose on alumina particles

    Article • Journal of Colloid and Interface Science, June 2015, Elsevier

    Professor Alexandar Metodiev Zhivkov

  13. Protein on Clay

    Article • Journal of Colloid and Interface Science, May 2015, Elsevier

    Professor Alexandar Metodiev Zhivkov

  14. Electric polarizability dispersion of alumina particles with adsorbed carboxymethyl cellulose

    Article • RSC Advances, January 2014, Royal Society of Chemistry

    Professor Alexandar Metodiev Zhivkov

  15. Electric Properties of Carboxymethyl Cellulose

    Article • August 2013, IntechOpen

    Professor Alexandar Metodiev Zhivkov

  16. Polymer concentration dependence of kilohertz electric polarizability of alumina colloid particles with adsorbed carboxymethyl cellulose

    Article • Journal of Physics Condensed Matter, November 2010, Institute of Physics Publishing

    Professor Alexandar Metodiev Zhivkov

  17. Abnormal dispersion of refractive index of purple membranes in an aqueous medium

    Article • Applied Optics, January 2010, Optical Society of America (OSA)

    Professor Alexandar Metodiev Zhivkov

  18. Electric polarizability changes during E. coli culture growth

    Article • Journal of Colloid and Interface Science, November 2009, Elsevier

    Professor Alexandar Metodiev Zhivkov

  19. Influence of the medium electrolyte concentration on the electric polarizability of bacteria Escherichia coli in presence of ethanol

    Article • Colloids and Surfaces B Biointerfaces, November 2009, Elsevier

    Professor Alexandar Metodiev Zhivkov

  20. Influence of Cytoplasm Electrolyte Concentration on Maxwell−Wagner Polarizability of Bacteria E. coli

    Article • The Journal of Physical Chemistry B, June 2009, American Chemical Society (ACS)

    Professor Alexandar Metodiev Zhivkov

  21. Influence of ethanol on the high frequency electric polarizability of E. coli

    Article • Biophysical Chemistry, January 2009, Elsevier

    Professor Alexandar Metodiev Zhivkov

  22. Electrostatics of Horse Heart CytochromeCand Montmorillonite Monolamellar Plate

    Article • Biotechnology & Biotechnological Equipment, January 2009, Taylor & Francis

    Professor Alexandar Metodiev Zhivkov

  23. Influence of Low Concentration Ethanol on Membrane Permeability ofE.Coli

    Article • Biotechnology & Biotechnological Equipment, January 2009, Taylor & Francis

    Professor Alexandar Metodiev Zhivkov

  24. New Stage inE.ColiGrowth

    Article • Biotechnology & Biotechnological Equipment, January 2009, Taylor & Francis

    Professor Alexandar Metodiev Zhivkov

  25. High frequency electric polarizability of bacteria E. coli: Dependence on the medium ionic strength

    Article • Colloids and Surfaces B Biointerfaces, October 2008, Elsevier

    Professor Alexandar Metodiev Zhivkov

  26. Dependence of depletion layer thickness on polymer concentration determined by Vincent's pragmatic and Donath's electrophoretic theories

    Article • Journal of Colloid and Interface Science, September 2007, Elsevier

    Professor Alexandar Metodiev Zhivkov

  27. Change of purple membranes geometry induced by protein adsorption

    Article • Colloids and Surfaces B Biointerfaces, April 2007, Elsevier

    Professor Alexandar Metodiev Zhivkov

  28. Geometry of Purple Membranes in Aqueous Medium

    Article • August 2006, Taylor & Francis

    Professor Alexandar Metodiev Zhivkov

  29. pH-dependence of electric light scattering by water suspension of purple membranes

    Article • Colloids and Surfaces A Physicochemical and Engineering Aspects, September 2002, Elsevier

    Professor Alexandar Metodiev Zhivkov

  30. Electro-optical characterization of aqueous laponite suspensions

    Article • Colloids and Surfaces A Physicochemical and Engineering Aspects, September 2002, Elsevier

    Professor Alexandar Metodiev Zhivkov

  31. Orientation–deformation electro-optical effect in water suspension of purple membranes

    Article • Colloids and Surfaces A Physicochemical and Engineering Aspects, September 2002, Elsevier

    Professor Alexandar Metodiev Zhivkov

  32. Electro-optics of metal particles: electric birefringence of gold rods

    Article • Colloids and Surfaces A Physicochemical and Engineering Aspects, September 2002, Elsevier

    Professor Alexandar Metodiev Zhivkov

  33. Electro-optic investigation of oxide suspensions: Surface charge sign reversal through specific adsorption

    Article • Journal of Colloid and Interface Science, March 1991, Elsevier

    Professor Alexandar Metodiev Zhivkov

  34. 650—An electro-optical study of the dimensions and electric polarizability of chloroplasts and sub-chloroplast fragments.

    Article • Bioelectrochemistry and Bioenergetics, December 1984, Elsevier

    Professor Alexandar Metodiev Zhivkov

  35. Effect of external electric fields on membrane proteins: The bacteriorhodopsin

    Article • Bioelectrochemistry and Bioenergetics, April 1984, Elsevier

    Professor Alexandar Metodiev Zhivkov