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Research - Publications by Area:

 

Static and Dynamic Surface Tension of Surfactant Solutions and Interfacial Rheology

 

2017

1. Sulfonated Methyl Esters, Linear Alkylbenzene Sulfonates and Their Mixed Solutions: Micellization and Effect of Ca2+ Ions. V.I. Ivanova, R.D. Stanimirova, K.D. Danov, P.A. Kralchevsky, J.T. Petkov. Colloids Surf. A, 519 (2017) 87–97; doi: 10.1016/j.colsurfa.2016.06.039

2. Factors Affecting the Stability of Water-oil-water Emulsion Films. N. Politova, S. Tcholakova, N. D. Denkov. Colloids Surf. A, 522 (2017) 608–620; doi: 10.1016/j.colsurfa.2017.03.055

3. Efficient Self-Emulsification via Cooling-Heating Cycles. S. Tcholakova, Z. Valkova, D. Cholakova, Z. Vinarov, I. Lesov, N. D. Denkov, K. Smoukov. Nature Comm., 8 (2017) 15012; doi: 10.1038/ncomms15012

4. New Surfactant Mixtures for Fine Foams with Slowed Drainage. K. G. Marinova, K. T. Naydenova, E. S. Basheva, F. Bauer, J. Tropsch, J. Franke. Colloids Surf. A, 523 (2017) 54–61; doi: 10.1016/j.colsurfa.2017.03.050

5. "Self-Shaping" of Multicomponent Drops. D. Cholakova, Zh. Valkova, S. Tcholakova, N. Denkov, S. K. Smoukov. Langmuir 33 (2017) 5696−5706. doi: 10.1021/acs.langmuir.7b01153

6. Coalescence Stability of Water-in-Oil drops: Effects of Drop Size and Surfactant Concentration. N. Politova, S. Tcholakova, S. Tsibranska, N. D. Denkov, K. Muelheims. Colloids Surf. A 531 (2017) 32–39; doi: 10.1016/j.colsurfa.2017.07.085

7. Self-Assembly of Escin Molecules at the Air−Water Interface as Studied by Molecular Dynamics. S. Tsibranska, A. Ivanova, S. Tcholakova, N. Denkov. Langmuir 33 (2017) 8330−8341; doi: 10.1021/acs.langmuir.7b01719

 

2016

1. Shape Analysis of a Rotating Axisymmetric Drop in Gravitational Field: Comparison of Numerical Schemes for Real-Time Data Processing. K.D. Danov, S.N. Dimova, T.B. Ivanov, J.K. Novev. Colloids Surf. A 489 (2016) 75–85.

2. Role of Interactions between Cationic Polymers and Surfactants for Foam Properties. Z. Mitrinova, S. Tcholakova, N. Denkov, K. P. Ananth. Colloids Surf. A 489 (2016) 378–391.

3. Surface Properties of Adsorption Layers Formed from Triterpenoid and Steroid Saponins. N. Pagureva, S. Tcholakova, K. Golemanov, N. Denkov, E. Pelan, S. D. Stoyanov. Colloids and Surfaces A: Physicochem. Eng. Aspects 491 (2016) 18–28.

4. Adhesion of Bubbles and Drops to Solid Surfaces, and Anisotropic Surface Tensions Studied by Capillary Meniscus Dynamometry. K.D. Danov, R.D. Stanimirova, P.A. Kralchevsky, K.G. Marinova, S.D. Stoyanov, T.B.J. Blijdenstein, A.R. Cox, E.G. Pelan. Adv. Colloid Interface Sci. 233 (2016) 223–239. doi: 10.1016/j.cis.2015.06.003.

5. On the Mechanism of Drop Self-Shaping in Cooled Emulsions. N. Denkov, D. Cholakova, S. Tcholakova, S. Smoukov. Langmuir 32 (2016) 7985–7991.

6. Control of Drop Shape Transformations in Cooled Emulsions. D. Cholakova, N. Denkov, S. Tcholakova, I. Lesov, S. K. Smoukov. Adv. Colloid Interface Sci. 235 (2016) 90–107.

7. Limited Coalescence and Ostwald Ripening in Emulsions Stabilized by Hydrophobin HFBII and Milk Proteins. L.M. Dimitrova, M.P. Boneva, K.D. Danov, P.A. Kralchevsky, E.S. Basheva, K.G. Marinova, J.T. Petkov, S.D. Stoyanov. Colloids Surf. A 509 (2016) 521–538; doi: 10.1016/j.colsurfa.2016.09.066

 

2015

1. Capillary Meniscus Dynamometry – Method for Determining the Surface Tension of Drops and Bubbles with Isotropic and Anisotropic Surface Stress Distributions. K.D. Danov, R.D. Stanimirova, P.A. Kralchevsky, K.G. Marinova, N.A. Alexandrov, S.D. Stoyanov, T.B.J. Blijdenstein, E.G. Pelan. J. Colloid Interface Sci. 440 (2015) 168–178.

2. Adsorption of Linear Alkyl Benzene Sulfonates on Oil–Water Interface: Effects of Na+, Mg2+ and Ca2+ ions. S. E. Anachkov, S. Tcholakova, D. T. Dimitrova, N. D. Denkov, N. Subrahmaniam, P. Bhunia. Colloids and Surfaces A: Physicochem. Eng. Aspects 466 (2015) 18–27.

3. Chemical Physics of Colloid Systems and Interfaces. P.A. Kralchevsky, K.D. Danov, in Handbook of Surface and Colloid Chemistry, Fourth Updated Edition; K. S. Birdi, Ed.; CRC Press, Boca Raton, 2015; Chapter 4, p. 247.

4. Sulfonated Methyl Esters of Fatty Acids in Aqueous Solutions: Interfacial and Micellar Properties. K.D. Danov, R.D. Stanimirova, P.A. Kralchevsky, E.S. Basheva, V.I. Ivanova, J.T. Petkov. J. Colloid Interface Sci. 457 (2015) 307–318.

5. Shear Rheology of Mixed Protein Adsorption Layers vs Their Structure Studied by Surface Force Measurements. K.D. Danov, P.A. Kralchevsky, G.M. Radulova, E.S. Basheva, S.D. Stoyanov, E.G. Pelan. Adv. Colloid Interface Sci. 222 (2015) 148–161.

6. Self-Shaping of Oil Droplets via the Formation of Intermediate Rotator Phases upon Cooling. N. Denkov, S. Tcholakova, I. Lesov, D. Cholakova, S. K. Smoukov. Nature 528 (2015) 392–395.

 

2014

1. Drying of particle-loaded foams for production of porous materials: mechanism and theoretical modeling. I. Lesov, S. Tcholakova, N. Denkov. RSC Adv. 4 (2014) 811-823.

2. Mechanistic Understanding of the Modes of Action of Foam Control Agents. N.D. Denkov, K.G. Marinova, S.S. Tcholakova. Adv. Colloid Interface Sci. 206 (2014) 57-67.

3. Surface Pressure Isotherm for a Monolayer of Charged Colloidal Particles at a Water/Nonpolar-Fluid Interface: Experiment and Theoretical Model. P.V. Petkov, K.D. Danov, P.A. Kralchevsky. Langmuir 30 (2014) 2768-2778.

4. Competitive Adsorption of the Protein Hydrophobin and an Ionic Surfactant: Parallel vs Sequential Adsorption and Dilatational Rheology. R.D. Stanimirova, K.G. Marinova, K.D. Danov, P.A. Kralchevsky, E.S. Basheva, S.D. Stoyanov, E.G. Pelan. Colloids Surf. A 457 (2014) 307−317.

5. Shear Rheology of Hydrophobin Adsorption Layers at Oil/Water Interfaces and Data Interpretation in Terms of a Viscoelastic Thixotropic Model. G.M. Radulova, K.D. Danov, P.A. Kralchevsky, J.T. Petkov, S.D. Stoyanov. Soft Matter 10 (2014) 5777−5786.

6. The Role of the Hydrophobic Phase in the Unique Rheological Properties of Saponin Adsorption Layers. K. Golemanov, S. Tcholakova, N. Denkov, E. Pelan, S. Stoyanov. Soft Matter 10 (2014) 7034–7044.

 

2013

1. Remarkably High Surface Visco-Elasticity of Adsorption Layers of Triterpenoid Saponins. K. Golemanov, S. Tcholakova, N. Denkov, E. Pelan, S. D. Stoyanov, Soft Matter, 2013, 9, 5738.

2. Surface Pressure and Elasticity of Hydrophobin HFBII Layers on the Air-Water Interface: Rheology vs. Structure Detected by AFM Imaging. R.D. Stanimirova, T.D. Gurkov, P.A. Kralchevsky, K.T. Balashev, S.D. Stoyanov, E.G. Pelan. Langmuir 29 (2013) 6053-6067.

3. Efficient Control of the Rheological and Surface Properties of Surfactant Solutions Containing C8−C18 Fatty Acids as Cosurfactants. Z. Mitrinova, S. Tcholakova, J. Popova, N. Denkov, B. Dasgupta, K.P. Ananthapadmanabhan, Langmuir 29 (2013) 8255-8265.

4. Interfacial Rheology of Viscoelastic Surfactant-Polymer Layers. T.D. Gurkov, B. Nenova, E.K. Kostova, W. Gaschler. In Colloid and Interface Chemistry for Nanotechnology (P.A. Kralchevsky, R. Miller and F. Ravera, Eds.). Taylor & Francis, New York, 2013; pp. 351-367.

5. Co-Adsorption of the Proteins b-Casein and BSA in Relation to the Stability of Thin Liquid Films and Foams. K.G. Marinova, R.D. Stanimirova, M.T. Georgiev, N.A. Alexandrov, E.S. Basheva, P.A. Kralchevsky. In Colloid and Interface Chemistry for Nanotechnology (P.A. Kralchevsky, R. Miller and F. Ravera, Eds.). Taylor & Francis, New York, 2013; pp. 439-458.

 

2012

1. Effect of Cationic Polymers on Foam Rheological Properties. N. Politova , S. Tcholakova , K. Golemanov, N.D. Denkov, M. Vethamuthu, K.P. Ananthapadmanabhan, Langmuir 28 (2012) 1115-1126.

2. Surface Shear Rheology of Adsorption Layers from the Protein HFBII Hydrophobin: Effect of Added β-Casein. G.M. Radulova, K.Golemanov, K.D. Danov, P.A. Kralchevsky, S.D. Stoyanov, L.N. Arnaudov, T.B.J. Blijdenstein, E.G. Pelan, A.Lips, Langmuir 28 (2012) 4168-4177.

3. The Standard Free Energy of Surfactant Adsorption at Air/Water and Oil/Water Interfaces: Theoretical vs. Empirical Approaches. K.D. Danov, P.A. Kralchevsky, Colloid Journal 74 (2012) 172-185.

4. Foaming and Foam Stability for Mixed Polymer−Surfactant Solutions: Effects of Surfactant Type and Polymer Charge. R. Petkova, S. Tcholakova, N. Denkov, Langmuir 28 (2012) 4996−5009.

5. Foam Rheology. N. D. Denkov, S. Tcholakova, R. Hoehler, S. Cohen-Addad, Chapter 6 in Foam Engineering: Fundamentals and Applications (1st Edition; P. Stevenson, Ed.), John Wiley & Sons, Chichester, UK, 2012.

6. Interfacial Layers from the Protein HFBII Hydrophobin: Dynamic Surface Tension, Dilatational Elasticity and Relaxation Times. N.A. Alexandrov, K.G. Marinova, T.D. Gurkov, K.D. Danov, P.A. Kralchevsky, S.D. Stoyanov, T.B.J. Blijdenstein, L.N. Arnaudov, E.G. Pelan, A. Lips, J. Colloid Interface Sci. 376 (2012) 296-306.

7. Impact of the Surfactant Structure on the Foaming/Defoaming Performance of Nonionic Block Copolymers in Na Caseinate Solutions. K.G. Marinova, L.M. Dimitrova, R.Y. Marinov, N.D. Denkov, A. Kingma, Bulg. J. Phys. 39 (2012) 53-64.

8. Effects of Emulsifier Charge and Concentration on Pancreatic Lipolysis. 1. In the Absence of Bile Saltsd. Z. Vinarov, Y. Petkova, S. Tcholakova, N. Denkov, S. Stoyanov, E. Pelan, A Lips, Langmuir 28 (2012) 8127-8139.

9. Effects of Emulsifier Charge and Concentration on Pancreatic Lipolysis: 2. Interplay of Emulsifiers and Biles. Z. Vinarov, S. Tcholakova, B. Damyanova, Y. Atanasov, N. Denkov, S. Stoyanov, E. Pelan, A. Lips, Langmuir 28 (2012) 12140-12150.

10. Surface Shear Rheology of Saponin Adsorption Layers. K. Golemanov, S. Tcholakova, N. Denkov, E. Pelan, S. Stoyanov, Langmuir 28 (2012) 12071-12084.

11. Surface Shear Rheology of Hydrophobin Adsorption Layers: Laws of Viscoelastic Behaviour with Applications to Long-Term Foam Stability. K.D. Danov, G.M. Radulova, P.A. Kralchevsky, K. Golemanov, S.D. Stoyanov, Faraday Discussions. 158 (2012) 195-221.

 

2011

1. Surface Rheology of Saponin Adsorption Layers. R. Stanimirova, K. Marinova, S. Tcholakova, N.D. Denkov, S. Stoyanov, E. Pelan, Langmuir 27 (2011) 12486-12498.

2. Adsorption Kinetics under the Influence of Barriers at the Subsurface Layer. T.D. Gurkov, Colloid Polym. Sci. 289 (2011) 1905-1915.

3. Control of Ostwald Ripening by Using Surfactants with High Surface Modulus. S. Tcholakova, Z. Mitrinova, K. Golemanov, N. Denkov, M. Vethamuthu, K. P. Ananthapadmanabhan, Langmuir 27 (2011) 14807-14819.

 

2010

1. Elastic Langmuir Layers and Membranes Subjected to Unidirectional Compression: Wrinkling and Collapse. K. D. Danov, P. A. Kralchevsky, S. D. Stoyanov, Langmuir 26 (2010) 143-155.

2. Coexistence of Micelles and Crystallites in Solutions of Potassium Myristate: Soft Matter vs. Solid Matter. M. P. Boneva, K. D. Danov, P. A. Kralchevsky, S. D. Kralchevska, K. P. Ananthapadmanabhan, A. Lips, Colloids Surf. A 354 (2010) 172-187.

3. Equations of State and Adsorption Isotherms of Low Molecular Non-ionic Surfactants. I. B. Ivanov, K. D. Danov, D. Dimitrova, M. I. Boyanov, K. P. Ananthapadmanabhan, A. Lips, Colloids and Surfaces A 354 (2010) 118–133.

 

2009

1. Reconsidering the Importance of Interfacial Properties in Foam Stability. P. A.Wierenga, L. van Norél, E. S. Basheva, Colloids and Surfaces A: Physicochem. Eng. Aspects 344 (2009) 72-78.

2. Physico-chemical Factors Controlling the Foamability and Foam Stability of Milk Proteins: Sodium Caseinate and Whey Protein Concentrates. K. G. Marinova, E. S. Basheva, B. Nenova, M. Temelska, A. Y. Mirarefi, B. Campbell, I. B. Ivanov, Food Hydrocolloids 23 (2009) 1864-1876.

3. The Role of Surfactant Type and Bubble Surface Mobility in Foam Rheology. N. D. Denkov, S. Tcholakova, K. Golemanov, K. P. Ananthpadmanabhan, A. Lips, Soft Matter 5 (2009) 3389-3408.

4. Surface Dilatational Rheology Measurements for Oil/Water Systems with Viscous Oils. N. Alexandrov, K. G. Marinova, K. D. Danov, I. B. Ivanov, J. Colloid Interface Sci. 339 (2009) 545-550.

 

2008

1. The Drop Size in Membrane Emulsification Determined from the Balance of Capillary and Hydrodynamic Forces. N. C. Christov, K. D. Danov, D. K. Danova, and P. A. Kralchevsky, Langmuir 24 (2008) 1397-1410 (invited article).

2. Surfactant Mixtures for Control of Bubble Surface Mobility in Foam Studies. K. Golemanov, N. D. Denkov, S. Tcholakova, M. Vethamuthu, and A. Lips, Langmuir 24 (2008) 9956–9961.

3. Instrument and Methods for Surface Dilatational Rheology Measurements. S. C. Russev, N. Alexandrov, K. G. Marinova, K. D. Danov, N. D. Denkov, L. Lyutov, V. Vulchev, and C. Bilke-Krause, Review of Scientific Instruments 79 (2008) 104102.

4. Chemical Physics of Colloid Systems and Interfaces. P. A. Kralchevsky, K. D. Danov and N. D. Denkov, Chapter 7 in Handbook of Surface and Colloid Chemistry (3rd Updated Edition; K. S. Birdi, Ed.). CRC Press, Boca Raton, FL, 2008.

 

2007

1. Effect of the Precipitation of Acid-Soap and Alkanoic-Acid Crystallites on the Bulk pH and Surface Tension of Soap Solutions. P. A. Kralchevsky, K. D. Danov, S. D. Kralchevska, C. I. Pishmanova, N. C. Christov, K. P. Ananthapadmanabhan, and A. Lips, Langmuir 23 (2007) 3538-3553.

2. Role of the Counterions on the Adsorption of Ionic Surfactants, I. B. Ivanov, K. G. Marinova, K. D. Danov, D. Dimitrova, K. P. Ananthapadmanabhan and A. Lips, Advances in Colloid and Interface Science 134-135 (2007) 105-124.

 

2006

1. Mass Transport in Micellar Surfactant Solutions: 1. Relaxation of Micelle Concentration, Aggregation Number and Polydispersity. K. D. Danov, P. A. Kralchevsky, N. D. Denkov, K. P. Ananthapadmanabhan, and A. Lips, Adv. Colloid Interface Sci. 119 (2006) 1-16.

2. Mass Transport in Micellar Surfactant Solutions: 2. Theoretical Modeling of Adsorption at a Quiescent Interface. K. D. Danov, P. A. Kralchevsky, N. D. Denkov, K. P. Ananthapadmanabhan, and A. Lips, Adv. Colloid Interface Sci. 119 (2006) 17-33.

3. Micellar Surfactant Solutions: Dynamics of Adsorption at Fluid Interfaces Subjected to Stationary Expansion. K. D. Danov, P. A. Kralchevsky, K. P. Ananthapadmanabhan, and A. Lips, Colloids Surf. A, 282-283 (2006) 143-161.

4. Interpretation of Surface-Tension Isotherms of n-Alkanoic (Fatty) Acids by Means of the van der Waals Model. K.D. Danov, P.A. Kralchevsky, K.P. Ananthapadmanabhan, A. Lips, J. Colloid Interface Sci. 300 (2006) 809-813.

5. The Maximum Bubble Pressure Method: Universal Surface Age and Transport Mechanisms in Surfactant Solutions. N.C. Christov, K.D. Danov, P.A. Kralchevsky, K.P. Ananthapadmanabhan, A. Lips, Langmuir 22 (2006) 7528-7542.

6. Influence of Electrolytes on the Dynamic Surface Tension of Ionic Surfactant Solutions: Expanding and Immobile Interfaces. K.D. Danov, P.A. Kralchevsky, K.P. Ananthapadmanabhan, A. Lips, J. Colloid Interface Sci. 303 (2006) 56-68.

7. Dynamics of Adsorption from Micellar Surfactant Solutions at Expanding Fluid Interfaces in Relation to the Emulsification Process. K.D. Danov, P.A. Kralchevsky, N.D. Denkov, K.P. Ananthapadmanabhan, A. Lips, In the Proceedings of the 4th World Congress on Emulsions, Lyon, France, 2006; Paper No. 2.1-376.

8. Layers of Nonionic Surfactants on Fluid Interfaces; Adsorption and Interactions in the Frames of a Statistical Model, T.D. Gurkov, I.B. Ivanov, In the Proceedings of the 4th World Congress on Emulsions, Lyon, France, 2006; Paper No. 2.1-509.

9. Interfacial Rheology and Structure of Straight-Chain and Branched Hexadecanol Mixtures, G.T. Gavranovic, R.E. Kurtz, K. Golemanov, A. Lange, G.G. Fuller, Industrial & Engineering Chemistry Research 45 (2006) 6880-6884.

10. Adsorption and Structure of the Adsorbed Layer of Ionic Surfactants, I.B. Ivanov, K.P. Ananthapadmanabhan, A. Lips, Advances in Colloid & Interface Science 123-126 (2006) 189-212.

 

2005

1. Ionic Surfactants on Fluid Interfaces: Determination of the Adsorption; Role of the Salt and the Type of the Hydrophobic Phase, T. D. Gurkov, D. T. Todorova, K. G. Marinova, C. Bilke-Crause, C. Gerber, and I. B. Ivanov, Colloids & Surfaces A 261 (2005) 29-38.

2. Interfacial Rheology of Adsorbed Layers with Surface Reaction: On the Origin of the Dilatational Surface Viscosity, I.B. Ivanov, K.D. Danov, K.P. Ananthapadmanabhan, and A. Lips, Advances in Colloid & Interface Sci. 114-115 (2005) 61-92.

3. Wall Slip and Viscous Dissipation in Sheared Foams: Effect of Surface Mobility, N. D. Denkov, V. Subramanian, D. Gurovich and A. Lips, Colloids and Surfaces A 263(1-3) (2005) 129-145.

 

2004

1. Composition of Mixed Adsorption Layers and Micelles in Solutions of Sodium Dodecyl Sulfate and Dodecyl Acid Diethanol Amide. J. K. Angarska, K. D. Tachev, N. D. Denkov, Colloids & Surfaces A 233 (2004) 193-201.

2. On the Mechanism of Stomatocyte-Echinocyte Transformations of Red Blood Cells: Experiment and Theoretical Model. K. D. Tachev, K. D. Danov, P. A. Kralchevsky, Colloids Surf. B: Biointerfaces 34 (2004) 123-140.

3. Mixed Solutions of Anionic and Zwitterionic Surfactant (Betaine): Surface Tension Isotherms, Adsorption and Relaxation Kinetics. K. D. Danov, S. D. Kralchevska, P. A. Kralchevsky, K. P. Ananthapadmanabhan, and A. Lips, Langmuir 20 (2004) 5445-5453.

 

2003

1. Effect of Nonionic Admixtures on the Adsorption of Ionic Surfactants at Fluid Interfaces. Part 1. Sodium Dodecyl Sulfate and Dodecanol. P. A. Kralchevsky, K. D. Danov, V. L. Kolev, G. Broze and A. Mehreteab, Langmuir 19 (2003) 5004-5018.

2. Effect of Nonionic Admixtures on the Adsorption of Ionic Surfactants at Fluid Interfaces. Part 2. Sodium Dodecylbenzene Sulfonate and Dodecylbenzene. K. D. Danov, S. D. Kralchevska, P. A. Kralchevsky, G. Broze and A. Mehreteab, Langmuir 19 (2003) 5019-5030.

3. Monolayers of Globular Proteins on Air/Water Interface: Applicability of the Volmer Equation of State. T.D. Gurkov, S.C. Russev, K.D. Danov, I.B. Ivanov, B. Campbell, Langmuir 19 (2003) 7362-7369.

 

2002

1. Adsorption Relaxation for Nonionic Surfactants under Mixed Barrier-Diffusion and Micellization-Diffusion Control. K. D. Danov, D. S. Valkovska, and P. A. Kralchevsky, J. Colloid Interface Sci. 251 (2002) 18-25.

2. Capillary Mechanisms in Membrane Emulsification: Oil-in-Water Emulsions Stabilized by Tween 20 and Milk Proteins. N. C. Christov, D. N. Ganchev, N. D. Vassileva, N. D. Denkov, K. D. Danov, and P. A. Kralchevsky, Colloids and Surfaces A 209 (2002) 83-104.

3. Comparison of the van der Waals and Frumkin Adsorption Isotherms for Sodium Dodecyl Sulfate at Various Salt Concentrations. V. L. Kolev, K. D. Danov, P. A. Kralchevsky, G. Broze and A. Mehreteab, Langmuir 18 (2002) 9106-9109.

4. Adsorption of Ionic Surfactants on Solid Particles Determined by Zeta-Potential Measurements: Competitive Binding of Counterions. N. K. Dimov, V. L. Kolev, P. A. Kralchevsky, L. G. Lyutov, G. Broze, and A. Mehreteab, J. Colloid Interface Sci. 256 (2002) 23-32.

5. Chemical Physics of Colloid Systems and Interfaces: 1. Introduction; 2. Surface Tension of Surfactant Solutions; 3. Capillary Hydrostatics and Thermodynamics; 4. Surface Forces. P. A. Kralchevsky, K. D. Danov and N. D. Denkov, Chapter 5 in "Handbook of Surface and Colloid Chemistry", Second Edition (K. S. Birdi, Ed.), CRC Press, New York, 2002.

6. Adsorption of sodium dodecyl sulfate in the presence of magnesium sulfate. An estimation of the adsorption of magnesium ions in Stern layer based on the surface tension data. J.K. Angarska, B.St. Dimitrova, P.A. Kralchevsky, K.D. Danov, Collection of Scientific Studies in Natural Sciences. University Publisher Ep. Konstantin Preslavsky, Shumen, Bulgaria, 2002; pp. 192-209.

 

2001

1. Particles at Fluid Interfaces and Membranes: Attachment of Colloid Particles and Proteins to Interfaces and Formation of Two-Dimensional Arrays. P.A. Kralchevsky, K. Nagayama; Elsevier, Amsterdam, 2001: Book: 14 chapters, 654 pages.

2. Influence of Ionic Surfactants on the Drainage Velocity of Thin Liquid Films. D. S. Valkovska, K. D. Danov, J. Colloid Interface Sci. 241 (2001) 400-412.

3. Effect of Oily Additives on Foamability and Foam Stability. 1. Role of Interfacial Properties. L. Arnaudov, N. D. Denkov, I. Surcheva, P. Durbut, G. Broze, A. Mehreteab, Langmuir 17 (2001) 6999-7010.

4. Dynamic Processes in Surfactant Stabilized Emulsions. K.D. Danov, P.A. Kralchevsky, and I.B. Ivanov, Chapter 26 in "Encyclopedic Handbook of Emulsion Technology", J. Sjoblom, Ed., Marcel Dekker, New York, 2001; pp. 621-659.

5. Role of Surface Diffusion for the Drainage and Hydrodynamic Stability of Thin Liquid Films. S. D. Stoyanov, N. D. Denkov, Langmuir 17 (2001) 1150-1156.

6. Dynamics of Particles on Interfaces and in Thin Liquid Films. J. T. Petkov, N. D. Denkov, In "Encyclopedia of Surface and Colloid Science", A. Hubbard, Ed.; Marcel Dekker, New York, 2001.

7. Planar Fluid Interfaces. P. A. Kralchevsky and K. Nagayama, Chapter 1 in the book: "Particles at Fluid Interfaces and Membranes" (P. A. Kralchevsky and K. Nagayama, Authors), Elsevier, Amsterdam, 2001; pp. 1-63.

8. Measurement of the Yield Stress of Gellike Protein Layers on Liquid Surfaces by Means of an Attached Particle. J. T. Petkov, T. D. Gurkov, B. E. Campbell, Langmuir 17 (2001) 4556-4563.

9. Dilatational and Shear Rheology of Protein Layers on Water/Air Interface. T. D. Gurkov, J. T. Petkov, B. Campbell, R. P. Borwankar, in: "Food Colloids, Fundamentals of Formulation" (E. Dickinson, R. Miller, Eds.), Royal Soc. Chem., Cambridge, UK, 2001, 181-190.

 

2000

1. Adsorption Kinetics of Ionic Surfactants after a Large Initial Perturbation. Effect of Surface Elasticity. K.D. Danov, V.L. Kolev, P.A. Kralchevsky, G. Broze and A. Mehreteab, Langmuir 16 (2000) 2942-2956.

2. Determination of Bulk and Surface Diffusion Coefficients from Experimental Data for Thin Liquid Film Drainage. D. S. Valkovska, K. D. Danov, J. Colloid Interface Sci. 223 (2000) 314-316.

3. Dilatational and Shear Elasticity of Gel-like Protein Layers on Air/Water Interface. J. Petkov, T. Gurkov, B. Campbell, R. Borwankar, Langmuir 16 (2000) 3703-3711.

4. Adsorption Kinetics of Some Polyethylene Glycol Octylphenyl Ethers Studied by the Fast Formed Drop Technique. T. Horozov, L. Arnaudov, J. Colloid Interface Sci. 222 (2000) 146-155.

5. Viscous Drag of a Solid Sphere Straddling a Spherical or Flat Surface. K.D. Danov, R. Dimova, and B. Pouligny, Phys. Fluids 12 (2000) 2711-2722.

6. Dilatational and Shear Rheology of Protein Layers on Water/Air Interface. T.D. Gurkov, J.T. Petkov, B. Campbell and R.P. Borwankar, Proceedings of the Conference "Food Colloids 2000: Fundamentals of Formulation" (April 3-6, 2000, Potsdam, Germany), E. Dickinson and R. Miller, Eds., Royal Soc. Chem., Cambridge, UK, 2001, p. 181.

 

1999

1. Thermodynamics of Ionic Surfactant Adsorption with Account for the Counterion Binding: Effect of Salts of Various Valency. P.A. Kralchevsky, K.D. Danov, G. Broze and A. Mehreteab, Langmuir 15 (1999) 2351-2365.

2. Adsorption Kinetics of Ionic Surfactants with Detailed Account for the Electrostatic Interactions: Effect of the Added Electrolyte. K. D. Danov, P. M. Vlahovska, P. A. Kralchevsky, G. Broze and A. Mehreteab, Colloids & Surfaces A 156 (1999) 389-411.

3. Falling Ball Viscosimetry of Giant Vesicle Membranes: Finite-Size Effects. R. Dimova, C. Dietrich, A. Hadjiiski, K. D. Danov, B. Pouligny, Eur. Phys. J. B 12 (1999) 589-598.

4. Motion of a Massive Particle Attached to a Spherical Interface: Statistical Properties of the Particle Path. K. Velikov, K. D. Danov, M. Angelova, C. Dietrich, B. Pouligny, Colloids & Surfaces A 149 (1999) 245-251.

5. A Novel Fast Experimental Technique for Measuring Dynamic Surface and Interfacial Tension of Surfactant Solutions at Constant Interfacial Area. T. Horozov and L. Arnaudov, J. Colloid and Interface Sci. 219 (1999) 99-109.

6. Part 1 of the review "Equilibrium and Dynamics of Surfactant Adsorption Monolayers and Thin Liquid Films". K.D. Danov, P.A. Kralchevsky and I.B. Ivanov, in: Handbook of Detergents, Part A: Properties, G. Broze, Ed., Chapter 9. M. Dekker, New York, 1999; pp. 303-418.

 

1998

1. Properties of Amphoteric Surfactants Studied by Zeta-potential Measurements with Latex Particles. R. G. Alargova, I. Y. Vakarelsky, V. N. Paunov, S. D. Stoyanov, P. A. Kralchevsky, A. Mehreteab and G. Broze, Langmuir 14 (1998) 1996-2003.

2. Effect of Calcium Ions and Environmental Conditions on the Properties of Beta-Casein Stabilized Films and Emulsions. O. D. Velev, B. E. Campbell, R. P. Borwankar, Langmuir 14 (1998) 4122-4130.

3. Gradual Disintegration of Protein Lumps Contained in Thin Emulsion Films: Role of the Surface Diffusion. T.D. Gurkov, K.G. Marinova, A. Zdravkov, C. Oleksiak and B. Campbell, Progress in Colloid & Polymer Sci. 110 (1998) 263-268.

 

1997

1. Interfacial Rheology and Kinetics of Adsorption from Surfactant Solutions. T. S. Horozov, P. A. Kralchevsky, K. D. Danov, and I. B. Ivanov, J. Disp. Sci. Technol. 18 (1997) 593-607.

2. Interfacial Rheology and Emulsion Stability. K. D. Danov, I. B. Ivanov and P. A. Kralchevsky, In: Proceedings of the 2nd World Congress on Emulsions (Paper 2-2-152), Bordeaux, September 1997.

3. Adsorption Kinetics of Ionic Surfactants with Detailed Account for the Electrostatic Interactions. I. No Added Electrolyte. P. M. Vlahovska, K. D. Danov, A. Mehreteab and G. Broze, J. Colloid Interface Sci. 192 (1997) 194-206.

4. Effect of Micelles and Electrolyte on the Adsorption Kinetics. K.D. Danov, P.M. Vlahovska and P.A. Kralchevsky, In: Proceedings of the 2nd World Congress on Emulsions, Paper 2-2-153 (1997).

5. Charge of Emulsion Droplets Covered with Nonionic Surfactants. I. B. Ivanov, K. G. Marinova, R. G. Alargova, N. D. Denkov, R. P. Borwankar, In: Proceedings of the 2nd World Congress on Emulsions, Paper 2-2-149 (1997).

6. Motion of a Massive Microsphere Bound to a Spherical Vesicle. K.P. Velikov, C. Dietrich, A. Hadjiisky, K. Danov, B. Pouligny, Europhys. Let. 40 (1997) 405-410.

 

1996

1. Charging of Oil-Water Interfaces Due to Spontaneous Adsorption of Hydroxyl Ions. K.G. Marinova, R.G. Alargova, N.D. Denkov, O.D. Velev, D.N. Petsev, I.B. Ivanov, R.P. Borwankar, Langmuir 12 (1996) 2045-2051.

2. Precise Method for Measuring the Shear Surface Viscosity of Surfactant Monolayers. J. T. Petkov, K. D. Danov, N. D. Denkov, R. Aust and F. Durst, Langmuir 12 (1996) 2650-2653.

3. Effect of the Surface Expansion and Wettability of Capillary on the Dynamic Surface Tension Measured by Maximum Bubble Pressure Method. T. S. Horozov, C. D. Dushkin, K. D. Danov, L. N. Arnaudov, O. D. Velev, A. Mehreteab, G. Broze, Colloids & Surfaces A 113 (1996) 117-126.

4. Formation of Dimers in Lipid Monolayers. T. D. Gurkov, P. A. Kralchevsky, K. Nagayama, Colloid Polym. Sci. 274 (1996) 227-238.

5. Kinetics of the Surface Tension of Micellar Solutions: Comparison of Different Experimental Techniques. J. V. Mitrancheva, C. D. Dushkin, P. Joos, Colloid Polym. Sci. 274 (1996) 356-367.

 

1995

1. Influence of the Surface Viscosity on the Drag and Torque Coefficients of a Solid Particle in a Thin Liquid Layer. K. D. Danov, R. Aust, F. Durst and U. Lange, Chemical Engineering Science 50 (1995) 263-277.

2. Slow Motions of a Solid Spherical Particle Close to a Viscous Interface. K. D. Danov, R. Aust, F. Durst and U. Lange, International Journal of Multiphase Flow 21 (1995) 1169-1189.

3. Measurement of the Drag Coefficient of Spherical Particles Attached to Fluid Interfaces. J. T. Petkov, N. D. Denkov, K. D. Danov, O. D. Velev, R. Aust, F. Durst, J. Colloid Interface Sci. 172 (1995) 147-154.

4. Influence of the Surface Viscosity on the Hydrodynamic Resistance and Surface Diffusivity of a Large Brownian Particle. K. D. Danov, R. Aust, F. Durst, U. Lange, J. Colloid Interface Sci. 175 (1995) 36-45.

5. Stresses in Lipid Membranes and Interactions between Inclusions. P. A. Kralchevsky, V. N. Paunov, N. D. Denkov, K. Nagayama, J. Chem. Soc.: Faraday Trans., 91(19) (1995) 3415-3432.

6. Dynamic Surface Tension of Micellar Solution Studied by the Maximum Bubble Pressure Method. III. Theory of the Solutions Containing Micelles. C. Dushkin, Tz. Iliev, Y. Radkov, Colloid Polymer Sci., 273 (1995) 370-378.

7. Dynamic Surface Properties of Aqueous Brij 58 Solutions at the Air/Water Interface. B. Li, P. Joos, T. Horozov, Colloids Surfaces 94 (1995) 85-91.

8. Dynamic Surface Tension of Surfactant Solutions Studied by Peaktensiometry. T. Horozov, P. Joos, J. Colloid Interface Sci. 173 (1995) 334-342.

 

1994

1. Composition of Mixed Adsorption Layers of Non-Ionic Surfactants on Oil/Water Interfaces. T. D. Gurkov, T. S. Horozov, I. B. Ivanov and R. P. Borwankar, Colloids and Surfaces A 87 (1994) 81-92.

2. Dynamic Surface Tension of Micellar Solutions Studied by the Maximum Bubble Pressure Method: 2. Theory of the Solutions below CMC. C. D. Dushkin, Tz. H. Iliev, Colloid Polym Sci. 272 (1994) 1157-1165.

 

1993

1. Adsorption from Surfactant Solutions under Diffusion Control. P. A. Kralchevsky, Y. S. Radkov and N. D. Denkov, J. Colloid Interface Sci. 161 (1993) 361-365.

2. A Local Approach in Interfacial Rheology: Theory and Experiment. T.S. Horozov, K.D. Danov, P.A. Kralchevsky, I.B. Ivanov and R.P. Borwankar, Proc. First World Congress on Emulsions, Paris, 1993; Vol. 2, paper 3-20-137.

3. Dynamic Interfacial Tension of Oil Drop Expanding in Micellar Surfactant Solution. T. Horozov, C. Dushkin, Proc. First World Congress on Emulsions, Paris, September, 1993.

 

1992

1. Dynamic Surface Tension of Micellar Solution Studied by the Maximum Bubble Pressure Method. I. Experiment. Tz. Iliev, C. Dushkin, Colloid and Polymer Sci. 270 (1992) 370.

 

1991

1. The Kinetics of the Surface Tension of Micellar Surfactant Solutions. C. D. Dushkin, I. B. Ivanov and P. A. Kralchevsky, Colloids and Surfaces, 60 (1991) 235-261.

2. Effects of the polydispersity of diffusing micelles on the dynamic surface elasticity. C. D. Dushkin, I. B. Ivanov, Colloids and Surfaces 60 (1991) 213-233.

3. Kinetics of Formation of Quasi-Monodisperse Micelles. C.D. Dushkin, I.B. Ivanov, J. Surface Sci. Technol., 7 (1991) 209.

 

1990

1. An Asymptotic Approach to the Kinetics of Formation of Polydisperse Micelles. C.D. Dushkin and I.B. Ivanov, J. Surface Sci. Technol. 6 (1990) 269-286.

 

1987

1. Effect of the Hydrocarbon Chain Length on the Interfacial Tension in n-Alkane-Water-Sodium Dodecylsulfate Systems. C. Dushkin, C. Vassilieff, T. Blagoeva, Molecular Crystals Liquid Crystals 152 (1987) 369-382.

 

1984

1. Dimerization of Oleate in Aqueous Solutions. P. Somasundaran, K.P. Ananhapadmanabhan, I.B. Ivanov, J. Colloid Interface Sci. 99(1) (1984) 128.

 

1983

1. Investigation of the Influence of some Low-soluble Surfactants Used in the Petroleum Industry on the Life of Elementary Droplets on the Flat Interface. L. Ogneva, S.K. Tchakarova, S.Ya. Shalyt, T.T. Traykov, I.B. Ivanov, Soviet Colloid Journal 45(6) (1983) 1117-1121 (In Russian).

2. On the Solubility and Precipitation of Dodecylbenzene Sulphonate Salts in Oil Recovery Systems. M.S. Celik, P. Somasundaran, I.B. Ivanov, in: "Surface phenomena in Enhaced Oil Recovery", ed. D.O. Shah, Plenum Press, New York, 1983.

 

1978

1. Adsorption and Disjoining Pressure in Foam Films, Stabilized with a Nonionic Surfactant at High Salt Concentrations. L. Grigorov, I. B. Ivanov, Ann. Univ. Sofia, (Fac. Chim.) 72(1) (1977/1978) 137-146 (In Bulgarian).

 

1977

1. Salting out and Adsorption of Polyoxyethylene Surfactans. L.S. Grigorov, I.B. Ivanov, T.N. Kolarov, Ann. Univ. Sofia (Fac. de Chimie) 71 (1976/1977) 138-153.

 

1975

1. Dynamic Elasticity of a Pulsating Gas Bubble. D.S. Dimitrov, I.B. Ivanov, Ann. Univ. Sofia (Fac. de Chimie) 69(2) (1974/1975) 143-151 (in Bulgarian).

2. Influence of Neutral Salts on the Properties of Adsorbed and Foam Films of Polyoxyethylene Surfactants. I.B. Ivanov, L. Grigorov, T. Kolarov, "Proceedings of the International Conference on Colloid and Surface Science", ed. E.Wolfram, Vol. 2, p.169, Academia Kiado, Budapest, 1975.

3. Colloids. I.B. Ivanov, D.N. Platikanov, Publishing House "Khimia", Leningrad, 1975, (in Russian).

 

1974

1. Thermodynamics of Thin Liquid Films. Influence of Electrolyte on the Tension and Contact Angles in Soap Films. L. Grigorov, I. Ivanov, T. Kolarov, T. Krumova, Ann. Univ. Sofia, (Fac. de Chimie) 67 (1973/1974) 339-349 (in Bulgarian).

 

1973

1. Statistical Theory of Monomolecular Adsorption. III. Non‑localized Monomolecular Adsorption. I.B. Ivanov, G.A. Martynov, Soviet Journal of Physical Chemistry 47 (1973) 135-139 (in Russian).

2. Statistical Theory of Monomolecular Adsorption. IV. Monomolecular Adsorption on a Crystal Surface. G.A. Martynov, I.B. Ivanov, B. Levinskiy, N. Aneva, Soviet Journal of Physical Chemistry 47 (1973) 140-144 (in Russian).

 

1972

1. Statistical Theory of Monomolecular Adsorption. I. Relation between the Local Density and the Thermodynamics Functions of the System. I.B. Ivanov, G.A. Martynov, Soviet Journal of Physical Chemistry 46 (1972) 2620-2623 (in Russian).

2. Statistical Theory of Monomolecular Adsorption. II. Adsorption of Solid Spheres, on Active Centres on Linear Dislocation and on a Surface. I.B. Ivanov, G. A. Martynov, Soviet Journal of Physical Chemistry 46 (1972) 2624-2629 (in Russian).

3. The Method of the Distribution Functions in the Statistical Theory of Adsorption. I.B. Ivanov, G.A. Martynov, in: "Physical Adsorption from Multicomponent Phases", M. M. Dubinin, Ed., "Nauka", Moscow, 1972, p. 191, (in Russian).

 

1971

1. On the Conditions for Thermodynamic Equilibrium in Capillary Systems. B.V. Toshev, I.B. Ivanov, Ann. Univ. Sofia (Fac. de Chimie) 65 (1970/1971) 329-336 (in Russian).

 

1970

1. Statistical Theory of Adsorption. G. Martynov, A. Muler, I. Ivanov, "Fundamental problems of the theory of physical adsorption", (Proceedings of the First Soviet Conference on Theoretical Problems of Adsorption), ed. M. M. Dubinin, p. 338, Nauka, Moscow, 1970 (in Russian).

2. Colloids, I.B. Ivanov, D.N. Platikanov, Nauka i izkustvo, Sofia, 1970, (in Bulgarian).

 

1968

1. The Method of Distribution Functions in the Statistical Theory of Adsorption. II. Account for the Finite Width of the Potential Well in the Case of Non-localized Adsorption. I.B. Ivanov, G.A. Martynov, Ann. Univ. Sofia (Fac. de Chimie) 62 (1967/1968) 333-345 (in Russian).

2. Influence of Diffusion on the Variation of Surface Concentration of Soluble Adsorption Monolayers. I. Panaiotov, I.B. Ivanov, Ann. Univ. Sofia (Fac. de Chimie) 62 (1967/1968) 121-128 (in Bulgarian).

 

1964

1. A Compensation Method for Studying Complexation in Solutions. I.B. Ivanov, Z. Mutaftchiev, Ann. Inst. for Chemical Technology, Sofia, 11(4) (1964) 171-181.

2. On the Relation between the Surface Tension and Vapor Pressure of Pure Liquids. I. B. Ivanov, Ann. Univ. Sofia (Fac. de Chimie) 59 (1964/1965) 23-34 (in Bulgarian).

 

1963

1. Influence of Adsorption on the Disjoining Pressure of Foam Films. I. B. Ivanov, Ann. Univ. Sofia (Fac. de Chimie) 57 (1962/1963) 73-82 (in Bulgarian).