DCE Logo

 

Research - Publications by Area:

 

Interactions of Drops and Bubbles

 

2017

1. Production and Characterization of Stable Foams with Fine Bubbles from Solutions of Hydrophobin HFBII and Its Mixtures with Other Proteins. L.M. Dimitrova, P.V. Petkov, P.A. Kralchevsky, S.D. Stoyanov, E.G. Pelan. Colloids Surf. A, 521 (2017) 92–104; doi: 10.1016/j.colsurfa.2016.06.018

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. Theory of Shape-Shifting Droplets. P. A. Haas, R. E. Goldstein, S. K. Smoukov, D. Cholakova, N. Denkov. Phys. Rev. Lett., 118 (2017) 088001; doi: 10.1103/PhysRevLett.118.088001

5. Role of Pickering Stabilization and Bulk Gelation for the Preparation and Properties of Solid Silica Foams. I. Lesov, S. Tcholakova, M. Kovadjieva, T. Saison, M. Lamblet, N. Denkov. J. Colloid Interface Sci. 504 (2017) 48–57; doi:10.1016/j.jcis.2017.05.036

 

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. 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.

3. The Secret Life of Drops. D. Cholakova, BBC Knowledge (Bulgaria) 74 (2016) 44-49.

4. Effect of Ionic Correlations on the Surface Forces in Thin Liquid Films: Influence of Multivalent Coions and Extended Theory. K.D. Danov, E.S. Basheva, P.A. Kralchevsky. Materials 9 (2016) 145; doi:10.3390/ma9030145.

5. Kinetics of Drop Breakage and Drop-Drop Coalescence in Turbulent Flow. S. Tcholakova, N. Politova, N. Denkov. Biomath Communications 3 (2016) 1–163.

6. 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.

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

8. 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.

9. Factors Affecting the Coalescence Stability of Microbubbles. N. Pagureva, S. Tcholakova, K. Rusanova, N. Denkov, T. Dimitrova. Colloids Surf. A 508 (2016) 21–26.

10. Particle Detachment from Fluid Interfaces: Theory vs. Experiments. S.E. Anachkov, I. Lesov, M. Zanini, P.A. Kralchevsky, N.D. Denkov, L. Isa. Soft Matter 12 (2016) 7632–7643; doi: 10.1039/C6SM01716A.

11. 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. Lowering of Cholesterol Bioaccessibility and Serum Concentrations by Saponins: in Vitro and in Vivo Studies. L. Vinarova, Z. Vinarov, V. Atanasov, I. Pantcheva, S. Tcholakova, N. Denkov, S. Stoyanov. Food & Function 6 (2015) 501–512.

4. Mechanisms of Cholesterol and Saturated Fatty Acid Lowering by Quillaja saponaria Extract, Studied by in vitro Digestion Model. L. Vinarova, Z. Vinarov, B. Damyanova, S. Tcholakova, N. Denkov, S. Stoyanov. Food & Function 6 (2015) 1319–1330.

5. 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.

6. 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.

 

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. Factors Controlling the Formation and Stability of Foams Used as Precursors of Porous Materials. I. Lesov, S. Tcholakova, N. Denkov. J. Colloid Interface Sci. 426 (2014) 9-21.

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. Nanoemulsions Obtained via Bubble-Bursting at a Compound Interface. J. Feng, M. Roche, D. Vigolo, L.N. Arnaudov, S.D. Stoyanov, T.D. Gurkov, G.G. Tsutsumanova, H.A. Stone. Nature Physics 10 (2014) DOI: 10.1038/nphys3003.

6. 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.

7. 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.

8. Statics and Dynamics of Capillary Bridges. P.V. Petkov, B.P. Radoev. Colloids Surf. A 460 (2014) 18–27.

 

2013

1. Surface and Foam Properties of SLES + CAPB + Fatty Acid Mixtures: Effect of pH for C12–C16 Acids. Z. Mitrinova, S. Tcholakova, K. Golemanov, N. Denkov, M. Vethamuthu, K.P. Ananthapadmanabhan, Colloids and Surfaces A: Physicochem. Eng. Aspects 438 (2013) 186-198.

2. Role of Polymer–Surfactant Interactions in Foams: Effects of pH and Surfactant Head Group for Cationic Polyvinylamine and Anionic Surfactants. R. Petkova, S. Tcholakova, N.D. Denkov, Colloids and Surfaces A: Physicochem. Eng. Aspects 438 (2013) 174-185.

3. US Patent "Process for Producing Finely Divided Suspensions by Melt Emulsification. R. Engel, T. Danner, B. Sachweh, S. Judat, A. Bauder, N. Denkov, S. Tcholakova, Pub. No.: US 2011/0275738.

4. WIPO Patent "Method for Producing Fine Particle Suspensions by Melt Emulsification". R. Engel, T. Danner, B. Sachweh, S. Judat, A. Bauder, N. Denkov, S. Tcholakova, WO 2011/138348 A1.

5. WIPO Patent "High-Performance Thermal Insulation Materials". A. Dekoninck, N. Denkov, I. Lesov, S. Tcholakova, K. Golemanov, WO 2013/007958 A1.

6. 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.

7. 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.

8. 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.

9. Ice cream: A delicious mix of crystals, droplets and bubbles. Z. Vinarov, BBC Knowledge (Bulgaria), 43 (2013) 28-33. [in Bulgarian, popular science]

 

2012

1. Role of Surfactants on the Approaching Velocity of Two Small Emulsion Drops. K.D. Danov, S.D. Stoyanov, N.K. Vitanov, I.B. Ivanov, J. Colloid Interface Sci. 368 (2012) 342-355.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. In vitro study of triglyceride lipolysis and phase distribution of the reaction products and cholesterol: effects of calcium and bicarbonate. Z. Vinarov, L. Petrova, S. Tcholakova, N. Denkov, S. Stoyanov, A. Lips, Food & Function 3 (2012) 1206-1220.

 

2011

1. Unique Properties of Bubbles and Foam Films Stabilized by HFBII Hydrophobin. E.S. Basheva, P.A. Kralchevsky, N.C. Christov, K.D. Danov, S.D. Stoyanov, T.B.J. Blijdenstein, H.-J. Kim, E.G. Pelan, A. Lips, Langmuir 27 (2011) 2382-2392.

2. Self-Assembled Bilayers from HFBII Hydrophobin: Nature of the Adhesion Energy. E.S. Basheva, P.A. Kralchevsky, K.D. Danov, S.D. Stoyanov, T.B.J. Blijdenstein, E.G. Pelan, A. Lips, Langmuir 27 (2011) 4481-4488.

3. Collection of Papers from the 8th EUFOAM Conference and the Meetings of COST Actions D43 and P21, Borovets, Bulgaria, 13-16 July 2010. N.D. Denkov, P.A. Kralchevsky, Colloids and Surfaces A, 382 (2011) 1-2.

4. Statistics of Rupture in Relation to the Stability of Thin Liquid Films with Different Size. T.D. Gurkov, J.K. Angarska, K.D. Tachev, W. Gaschler, Colloids and Surfaces A, 382 (2011) 174-180.

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

6. Hydration Force Due to the Reduced Screening of the Electrostatic Repulsion in Few-Nanometer-Thick Films. P.A. Kralchevsky, K.D. Danov, E.S. Basheva, Current Opinion in Colloid & Interface Sci. 16 (2011) 517-524.

7. Efficient Emulsification of Viscous Oils at High Drop Volume Fraction. S. Tcholakova, I. Lesov, K. Golemanov, N. Denkov, S. Judat, R. Engel, T. Daner, Langmuir 27 (2011) 14783-14796.

8. 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. Oscillatory Structural Forces Due to Nonionic Surfactant Micelles: Data by Colloidal-Probe AFM vs. Theory. N. C. Christov, K. D. Danov, Y. Zeng, P. A. Kralchevsky, R. von Klitzing, Langmuir 26 (2010) 915-923.

2. Antibubble Lifetime: Influence of the Bulk Viscosity and of the Surface Modulus of the Mixture. S. Dorbolo, D. Terwagne, R. Delhalle, J. Dujardin, N. Huet, N. Vandewalle, N. Denkov, Colloids Surf. A 365 (2010) 43-45.

3. Emulsification and Emulsion Stability of Silica-charged Silicone Oils. S. Tcholakova, N. D. Denkov, D. Hristova, M. Deruelle, In The Proceedings of 5th World Congress on Emulsions, Lyon, France, 2010; Paper No. 4.1-50.

4. Drop Size in Concentrated Emulsions, Obtained by Rotor-Stator Homogenization. S. Tcholakova, I. Lesov, K. Golemanov, N. D. Denkov, S. Judat, In The Proceedings of 5th World Congress on Emulsions, Lyon, France, 2010; Paper No. 1.1-53.

5. Viscous Ffriction in Sheared Concentrated Emulsions and Foams. N. D. Denkov, S. Tcholakova, K. Golemanov, A. Lips, In The Proceedings of 5th World Congress on Emulsions, Lyon, France, 2010; Paper No. 1.3-69.

 

2009

1. Modified Capillary Cell for Foam Film Studies Allowing Exchange of the Film-Forming Liquid. P.A. Wierenga, E.S. Basheva, N.D. Denkov, Langmuir 25 (2009) 6035-6039.

2. Effect of Disjoining Pressure on the Drainage and Relaxation Dynamics of Liquid Films with Mobile Interfaces. S. S. Tabakova, K. D. Danov, J. Colloid Interface Sci. 336 (2009) 273-284.

3. 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.

4. 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.

5. Jamming in Sheared Foams and Emulsions, Explained by Critical Instability of the Films between Neighboring Bubbles and Drops. N. D. Denkov, S. Tcholakova, K. Golemanov, A. Lips, Phys. Rev. Lett. 103 (2009) 118302.

6. 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. Reply to Comment on "Hydrophobic Forces in the Foam Films Stabilized by Sodium Dodecyl Sulfate: Effect of Electrolyte" and Subsequent Criticism. P. A. Kralchevsky, K. D. Danov, and J. K. Angarska, Langmuir 24 (2008) 2953-2953.

2. Comparison of Solid Particles, Globular Proteins and Surfactants as Emulsifiers. S. Tcholakova, N. D. Denkov, and A. Lips, Phys. Chem. Chem. Phys. 10 (2008) 1608-1627 (invited article).

3. Viscous Friction in Foams and Concentrated Emulsions under Steady Shear. N. D. Denkov, S. Tcholakova, K. Golemanov, K. P. Ananthapadmanabhan, and A. Lips, Phys. Rev. Lett. 100 (2008) 138301.

4. Theoretical Model of Viscous Friction inside Steadily Sheared Foams and Concentrated Emulsions. S. Tcholakova, N.D. Denkov, K. Golemanov, K.P. Ananthapadmanabhan, A. Lips, Phys. Rev. E 78 (2008) 011405.

5. 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.

6. 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.

7. 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.

8. Breakup of Bubbles and Drops in Steadily Sheared Foams and Concentrated Emulsions. K. Golemanov, S. Tcholakova, N. D. Denkov, K. P. Ananthapadmanabhan and A. Lips, Physical Review E 78 (2008) 051405.

9. Theoretical model of viscous friction inside steadily sheared foams and concentrated emulsions. N. D. Denkov, S. Tcholakova, K. Golemanov, T. Hu, and A. Lips, Amer. Inst. Physics Conference Proceedings, 2008, 1027, 902-904 .

 

2007

1. Emulsification in Turbulent Flow: 1. Mean and Maximum Drop Diameters in Inertial and Viscous Regimes. N. Vankova, S. Tcholakova, N. D. Denkov, I. B. Ivanov, V. D. Vulchev, T. Danner, J. Colloid Interface Sci. 312 (2007) 363-380.

2. Emulsification in Turbulent Flow: 2. Breakage Rate Constants. N. Vankova, S. Tcholakova, N. D. Denkov, V. D. Vulchev, T. Danner, J. Colloid Interface Sci. 313 (2007) 612-629.

3. Emulsification in turbulent flow: 3. Daughter drop-size distribution. S. Tcholakova, N. Vankova, N. D. Denkov, T. Danner, J. Colloid Interface Sci. 310 (2007) 570-589.

4. Hydrodynamic Forces Acting on a Microscopic Emulsion Drop Growing at a Capillary Tip in Relation to the Process of Membrane Emulsification, K. D. Danov, D. K. Danova and P. A. Kralchevsky, J. Colloid Interface Sci. 316 (2007) 844-857.

 

2006

1. Particle-Interface Interaction across a Nonpolar Medium in Relation to the Production of Particle-Stabilized Emulsions. K. D. Danov, P. A. Kralchevsky, K. P. Ananthapadmanabhan, A. Lips, Langmuir 22 (2006) 106-115.

2. Selection of Surfactants for Stable Paraffin-in-Water Dispersions, undergoing Solid-Liquid Transition of the Dispersed Particles. K. Golemanov, S. Tcholakova, N D. Denkov, and T. D. Gurkov, Langmuir 22 (2006) 3560-3569.

3. Ivan B. Ivanov: Remarkable Figure in Colloid Science. P. A. Kralchevsky, and N. D. Denkov, Colloids Surf. A, 282-283 (2006) 1-7.

4. Foam-Wall Friction: Effect of Air Volume Fraction for Tangentially Immobile Bubble Surface. N. D. Denkov, S. Tcholakova, K. Golemanov, V. Subramanian, and A. Lips, Colloids Surf. A, 282-283 (2006) 329-347.

5. Effect of Thermal Treatment, Ionic Strength, and pH on the Short-Term and Long-Term Coalescence Stability of Beta-Lactoglobulin Emulsions. S. Tcholakova, N.D. Denkov, D. Sidzhakova, B. Campbell, Langmuir 22 (2006) 6042-6052.

6. Numerical Simulation and Experimental Study of Emulsification in a Narrow-Gap Homogenizer. H. Steiner, R. Teppner, G. Brenn, N. Vankova, S. Tcholakova, N.D. Denkov, Chemical Engineering Science 61 (2006) 5841-5855.

7. 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.

8. Globular Proteins as Emulsion Stabilizers: Similarities and Differences with Surfactants and Solid Particles. N.D. Denkov, S. Tcholakova, I.B. Ivanov, In the Proceedings of the 4th World Congress on Emulsions, Lyon, France, 2006; Plenary Lecture.

9. Kinetics of Drop Breakup During Emulsification in Turbulent Flow. S. Tcholakova, N. Vankova, N.D. Denkov, I.B. Ivanov, T. Danner, In the Proceedings of the 4th World Congress on Emulsions, Lyon, France, 2006; Paper No. 2.2-304.

10. Mechanism of Drop Detachment from Micro-Pores with Application to Membrane Emulsification. K.D. Danov, P.A. Kralchevsky, N.C. Christov, D.K. Danova, In the Proceedings of the 4th World Congress on Emulsions, Lyon, France, 2006; Paper No. 2.2-377.

11. Coalescence Stability of Emulsions Containing Globular Milk Proteins, S. Tcholakova, N.D. Denkov, I.B. Ivanov, B. Campbell, Advances in Colloid & Interface Science 123-126 (2006) 259-293.

 

2005

1. Detachment of Oil Drops from Solid Surfaces in Surfactant Solutions: Molecular Mechanisms at a Moving Contact Line, P.A. Kralchevsky, K.D. Danov, V.L. Kolev, T.D. Gurkov, M.I. Temelska, and G. Brenn, Industrial & Engineering Chemistry Research 44 (2005) 1309-1321.

2. Effects of Electrolyte Concentration and pH on the Coalescence Stability of Beta-Lactoglobulin Emulsions: Experiment and Interpretation, S. Tcholakova, N. D. Denkov, D. Sidzhakova, I. B. Ivanov, B. Campbell, Langmuir 21 (2005) 4842-4855.

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. Electrodipping Force Acting on Solid Particles at a Fluid Interface. K .D. Danov, P. A. Kralchevsky, M. P. Boneva, Langmuir 20 (2004) 6139-6151.

2. Role of Surfactant Type and Concentration for the Mean Drop Size during Emulsification in Turbulent Flow. S. Tcholakova, N. D. Denkov, and T. Danner, Langmuir 20 (2004) 7444-7458.

3. Evaluation of the Precision of Drop-Size Determination in Oil/Water Emulsions by Low-Resolution NMR Spectroscopy. P.S. Denkova, S. Tcholakova, N.D. Denkov, K. D. Danov, B. Campbell, C. Shawl, D. Kim, Langmuir 20 (2004) 11402-11413.

4. Effect of Surfactants on Drop Stability and Thin Film Drainage. K. D. Danov, In: Fluid Mechanics of Surfactant and Polymer Solutions (CISM Cources and Lectures No. 463). V.M. Starov and I.B. Ivanov, Eds., Springer, New York, 2004; pp. 1-38.

5. Surface Forces in Model Oil-in-Water Emulsions Stabilized by Proteins. T.D. Dimitrova, F. Leal-Calderon, T.D. Gurkov, B. Campbell, Adv. Colloid Interface Sci. 108 (2004) 73-86.

6. Main factors controlling the emulsification process under turbulent conditions. 2. Experiment and data interpretation. S. Tcholakova, N. D. Denkov, I. B. Ivanov, T. Danner, 21st ICTAM, Warsaw, 2004, Paper FM8S_11669

 

2003

1. Spontaneous Detachment of Oil Drops from Solid Substrates: Governing Factors. V. L. Kolev, I. I. Kochijashky, K. D. Danov, P. A. Kralchevsky, G. Broze and A. Mehreteab, J. Colloid Interface Sci. 257 (2003) 357-363.

2. Hydrodynamic Instability and Coalescence in Trains of Emulsion Drops or Gas Bubbles Moving through a Narrow Capillary. K.D. Danov, D.S. Valkovska, P.A. Kralchevsky, J. Colloid Interface Sci. 267 (2003) 243-258.

 

2002

1. 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.

2. Hydrodynamic Behavior and Stability of Approaching Deformable Drops. T. D. Gurkov, E. S. Basheva, In: "Encyclopedia of Surface & Colloid Science", A. T. Hubbard (Ed.), Marcel Dekker, New York, 2002.

3. Gentle Film Trapping Technique with Application to Drop Entry Measurements. A. Hadjiiski, S. Tcholakova, I. B. Ivanov, T. D. Gurkov, E. F. Leonard, Langmuir 18 (2002) 127-138.

4. Role of Entry Barriers in Foam Destruction by Oil Drops. A. Hadjiiski, N. D. Denkov, S. Tcholakova, I. B. Ivanov, In: "Adsorption and Aggregation of Surfactants in Solution", K. L. Mittal and D. O. Shah (Eds.), Marcel Dekker, New York, 2002, pp. 465-500.

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.

 

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. On the Viscosity of Dilute Emulsions. K. D. Danov, J. Colloid Interface Sci. 235 (2001) 144-149.

3. Van der Waals Interaction between Two Truncated Spheres Covered by a Uniform Layer (Deformed Drops, Vesicles, or Bubbles). S. Tcholakova, N. D. Denkov, R. Borwankar, B. Campbell, Langmuir 17 (2001) 2357-2362.

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. Liquid Films and Interactions between Particle and Surface. P. A. Kralchevsky and K. Nagayama, Chapter 5 in the book: "Particles at Fluid Interfaces and Membranes" (P. A. Kralchevsky and K. Nagayama, Authors) Elsevier, Amsterdam, 2001; pp. 183-247.

6. The Formation of Satellite Droplets by Unstable Binary Drop Collision. G. Brenn, D.S. Valkovska, K.D. Danov, Phys. Fluids 13 (2001) 2463-2477.

7. Particles at Interfaces: Deformations and Hydrodynamic Interactions. P. A. Kralchevsky and K. Nagayama, Chapter 6 in the book: "Particles at Fluid Interfaces and Membranes" (P. A. Kralchevsky and K. Nagayama, Authors), Elsevier, Amsterdam, 2001; pp. 248-286.

 

2000

1. Deposition of Oil Drops on a Glass Substrate in Relation to the Process of Washing. N.K. Dimov, E.H. Ahmed, R.G. Alargova, P.A. Kralchevsky, P. Durbut, G. Broze, and A. Mehreteab, J. Colloid Interface Sci. 224 (2000) 116-125.

2. The Effect of Oil Solubility on the Oil Drop Entry at Water-Air Interface. D.S. Valkovska, P.A. Kralchevsky, K.D. Danov, G. Broze, and A. Mehreteab, Langmuir 16 (2000) 8892-8902.

3. Role of Betaine as Foam Booster in the Presence of Silicone Oil Drops. E. S. Basheva, D. Ganchev, N. D. Denkov, K. Kasuga, N. Satoh, K. Tsujii, Langmuir, 16(3) (2000) 1000-1013.

4. Effect of Surfactants on the Stability of Films between Two Colliding Small Bubbles. D.S. Valkovska, K. D. Danov, I.B. Ivanov, Colloids Surf. A 175 (2000) 179-192.

5. Mutual Approach and Stability of Two Slightly Deformed Bubbles. D.S. Valkovska, K.D. Danov, Proceedings of the 3rd Eurofoam Conference, Emulsions and Applications, 4-8 June, 2000, Delft, The Netherlands, p. 199.

 

1999

1. Flocculation and Coalescence of Micron-Size Emulsion Droplets. I. B. Ivanov, K. D. Danov and P. A. Kralchevsky, Colloids and Surfaces A 152 (1999) 161-182.

2. Surfactants Role on the Deformation of Colliding Small Bubbles. D. S. Valkovska, K. D. Danov, I. B. Ivanov, Colloids & Surfaces A 156 (1999) 547-566.

3. Part 2 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.

4. Thinning and Rupture of Aqueous Surfactant Films on Silica. P. Somasundaran, S. Simpson, I. Ivanov, R.K. Jain, D. Sarkar, Langmuir 15 (1999) 7658-7661.

5. Size Dependence of the Stability of Emulsion Drops Pressed Against a Large Interface. E. S. Basheva, T. D. Gurkov, I. B. Ivanov, G. Bantchev, B. Campbell and R. Borwankar, Langmuir 15 (1999) 6764-6769.

6. A Novel Fast Experimental Technique for Measuring Dynamic Surface and Interfacial Effect of Ionic Surfactants on the Film Drainage. D.S. Valkovska and K.D. Danov, in the Proceedings of the 15th Brazilian Congress of Mechanical Engineering, COBEM'99, paper AAEEJA, Sao Paulo, 1999.

7. Effect of Ionic Surfactants on the stability of plane-parallel films. D.S. Valkovska and K.D. Danov, in the Proceedings of the 15th Brazilian Congress of Mechanical Engineering, COBEM'99, paper AAEEJC, Sao Paulo, 1999.

 

1997

1. Stability of Emulsions under Equilibrium and Dynamic Conditions. I. B. Ivanov and P. A. Kralchevsky, Colloids & Surfaces A 128 (1997) 155-175.

2. Effect of Droplet Deformability and Surface Forces on Flocculation. P. A. Kralchevsky, N. D. Denkov, K. D. Danov and D. N. Petsev, In: Proceedings of the 2nd World Congress on Emulsions (Paper 2-2-150), Bordeaux, September 1997.

3. 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).

4. Role of the Oscillatory Structural Forces for the Stability of Emulsions. K.G. Marinova, T.D. Gurkov, G.B. Bantchev and P.A. Kralchevsky, In: Proceedings of the 2nd World Congress on Emulsions, Paper 2-3-151 (1997).

5. Mechanics and Thermodynamics of Interfaces, Thin Liquid Films and Membranes. T. D. Gurkov, and P. A. Kralchevsky, J. Dispersion Sci. Technology 18 (1997) 609-623.

6. Investigation of the Stochastic Collisions of Drops Produced by Rayleigh Breakup of Two Laminar Liquid Jets. G. Brenn, St. Kalenderski, and I. B. Ivanov, Phys. Fluids 9 (1997) 349-364.

 

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. Comments on the Conditions for Stable Attachment of Fluid Particles to Solid Surfaces. P. A. Kralchevsky, Langmuir 12 (1996) 5951-5955.

3. Film Trapping Technique: Precise Method for Three-Phase Contact Angle Determination of Solid and Fluid Particles of Micrometer Size. A. Hadjiiski, R. Dimova, N. D. Denkov, I. B. Ivanov, and R. Borwankar, Langmuir 12 (1996) 6665-6675.

 

1995

6. On the Slow Motion of an Interfacial Viscous Droplet in a Thin Liquid Layer. K. D. Danov, R. Aust, F. Durst and U. Lange, Chemical Engineering Science 50 (1995) 2943-2956.

7. Flocculation of Deformable Emulsion Droplets. I. Droplet Shape and Line Tension Effects. N. D. Denkov, D. N. Petsev, K. D. Danov, J. Colloid Interface Sci. 176 (1995) 189-200.

11. Flocculation of Deformable Emulsion Droplets: II. Interaction Energy. D. N. Petsev, N. D. Denkov and P. A. Kralchevsky, J. Colloid Interface Sci. 176 (1995) 201-213.

 

1994

1. Kinetic Model for the Simultaneous Processes of Flocculation and Coalescence in Emulsion Systems. K. D. Danov, I. B. Ivanov, T. D. Gurkov, R. Borwankar, J. Colloid Interface Sci. 167 (1994) 8-17.

2. Experimental Investigations on Model Emulsion Systems Stabilized with Non-ionic Surfactant Blends. O. D. Velev, T. D. Gurkov, Sv. K. Chakarova, B. I. Dimitrova, I. B. Ivanov and R. P. Borwankar, Colloids and Surfaces A 83 (1994) 43-55.

 

1993

1. Coalescence Dynamics of Deformable Brownian Emulsion Droplets. K. D. Danov, N. D. Denkov, D. N. Petsev, I. B. Ivanov and R. Borwankar, Langmuir 9 (1993) 1731-1740.

2. Interaction between Deformable Brownian Droplets. N. D. Denkov, D. N. Petsev, K. D. Danov, Phys. Rev. Lett. 71 (1993) 3226-3229.

3. Pair Interaction Energy between Deformable Drops and Bubbles. K. D. Danov, D. N. Petsev, N. D. Denkov, R. Borwankar, J. Chem. Phys. 99 (1993) 7179-7189.

4. Bancroft Rule and Hydrodynamic Stability of Thin Films and Emulsions. K. Danov, O. Velev, I. Ivanov, R. Borwankar, Proc. First World Congress in Emulsion, Paris, 1993.

5. Droplet Interactions and Coalescence in Emulsions. K.D. Danov, N.D. Denkov, D.N. Petsev, I.B. Ivanov and R.P. Borwankar, Proc. First World Congress on Emulsions, Paris, 1993.

6. Kinetics of Simultaneous Flocculation and Coalescence in Emulsion Systems. K.D. Danov, T.D. Gurkov, I.B. Ivanov and R.P. Borwankar, Proc. First World Congress on Emulsions, Paris, 1993.

 

1992

1. A Possible Mechanism of Stabilization of Emulsions with Solid Particles. N.D. Denkov, I. B. Ivanov, P.A. Kralchevsky, D.T. Wasan, J. Colloid Interface Sci. 150 (1992) 589-593.

 

1991

1. Effect of Droplet Deformation on the Interactions in Microemulsions. N.D. Denkov, P.A. Kralchevsky, I.B. Ivanov, C.S. Vassilieff, J. Colloid Interface Sci. 143 (1991) 157-173.

 

1990

1. Contact Angle of Air Bubbles Attached to an Air-Water Surface in Foam Applications. L. A. Lobo, A. D. Nikolov, A. S. Dimitrov, P. A. Kralchevsky and D. T. Wasan, Langmuir 6 (1990) 995-1001.

2. The Role of the Surfactant Distribution on the Lifetime of Drops in the System Water/Nitroethane. S.K. Chakarova, M. Dupeyrat, E. Nakache, C.D. Dushkin, I.B. Ivanov, J. Surface Sci. Technol., 6(3) (1990) 201-215.

 

1988

1. Machanisms of Oil Removal from a Solid Surface in the Presence of Anionic Micellar Solutions. R. L. Kao, D. T. Wasan, A. D. Nikolov, D. A. Edwards, Colloids and Surfaces 34 (1988) 389.

2. Thin Film Drainage. I.B. Ivanov and D.S. Dimitrov, Chapter 7 in "Thin Liquid Films" (I.B. Ivanov, Ed.), M. Dekker, New York, 1988.

 

1987

1. Instability of Emulsion Liquid Films Induced by the Transfer of Acetic Acid. I. B. Ivanov, Sv. K. Chakarova, B. I. Dimitrova, Colloids and Surfaces 22 (1987) 311-316.

2. A New Method for Measuring Film and Line Tensions. A. D. Nikolov, P. A. Kralchevsky, I. B. Ivanov, In: Surfactants in Solution, Vol. 6 (K. L. Mittal & P. Bothorel, Eds.), Plenum Press, New York, 1987, pp. 1537-1547.

3. Hydrostatics of spherical thin films. P.A. Kralchevsky, I.B. Ivanov, In: Surfactants in Solutions, Vol. 6 (K. L. Mittal & P. Bothorel, Eds.), Plenum Press, New York, 1987, pp. 1549-1556.

 

1986

1. Film and Line Tension Effects on the Attachment of Particles to an Interface: I. Conditions for Mechanical Equilibrium of Fluid and Solid Particles at a Fluid Interface. I. B. Ivanov, P. A. Kralchevsky, and A. D. Nikolov, J. Colloid Interface Sci. 112 (1986) 97-107.

2. Film and Line Tension Effects on the Attachment of Particles to an Interface: IV. Experimental Studies with Bubbles in Solutions of Dodecyl Sodium Sulfate. P. A. Kralchevsky, A. D. Nikolov and I. B. Ivanov. J. Colloid Interface Sci. 112 (1986) 132-143.

 

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 and I.B. Ivanov, Soviet Colloid Journal, 45(6) (1983) 1117. (In Russian).

 

1980

1. Effect of Surface Mobility on the Dynamic Behavior of Thin Liquid Films, I.B. Ivanov, Pure and Applied Chemistry 52 (1980) 1241-1262.