73 citations · 359 across the 12 of their papers we have counts for
6 papers · 1 filter
Role of interfacial elasticity for the rheological properties of saponin-stabilized emulsions
Sonya Tsibranska, Slavka Tcholakova, Konstantin Golemanov +3
Hypothesis Saponins are natural surfactants which can provide highly viscoelastic interfaces. This property can be used to quantify precisely the effect of interfacial dilatational…
Foamability of aqueous solutions: Role of surfactant type and concentration
B. Petkova, S. Tcholakova, M. Chenkova +4
In this paper we study the main surface characteristics which control the foamability of solutions of various surfactants. Experiments with anionic, cationic and nonionic surfactan…
Food grade nanoemulsions preparation by rotor-stator homogenization
Dilek Gazolu-Rusanova, Ivan Lesov, Slavka Tcholakova +2
High-pressure homogenizers, typically used for producing nanoemulsions at the industrial scale, are energy and maintenance intensive, and limited to produce only dilute, low viscos…
Spontaneous particle desorption and "Gorgon" drop formation from particle-armored oil drops upon cooling
Diana Cholakova, Zhulieta Valkova, Slavka Tcholakova +2
Drop "self-shaping" is a phenomenon in which cooled oily emulsion drops undergo a spectacular series of shape transformations (Denkov et al., Nature 528, 2015, 392). Solid particle…
Surface phase transitions in foams and emulsions
Nikolai Denkov, Slavka Tcholakova, Diana Cholakova
Surface phase transitions in surfactant adsorption layers are known to affect the dynamic properties of foams and to induce surface nucleation in freezing emulsion drops. Recently,…
Shape-Shifting Polyhedral Droplets
Pierre A. Haas, Diana Cholakova, Nikolai Denkov +2
Cooled oil emulsion droplets in aqueous surfactant solution have been observed to flatten into a remarkable host of polygonal shapes with straight edges and sharp corners, but diff…