ODES-lab Research: Fizzics & Colloids

INTERMOLECULAR & SURFACE FORCES AND FOAM FIZZICS

Foam films, Stratification, Supramolecular Oscillatory Structural Forces, Colloidal and Interfacial Science

Lifetime, drainage and stability of stratifying micellar freestanding films, including the analysis of thin film equation by including the contribution of disjoining pressure contributed by intermolecular and surface forces.

Hydrodynamics and thermodynamics of thin films of soft matter: interfacial and nonlinear flows. 

Discovery and analysis of thickness-dependent phase transitions including nanoridge-to-mesa transition and spinodal stratification, scuplted by supramolecular oscillatory structure force contribution to disjoining pressure.

IDIOM (INTEROMETRY DIGITAL IMAGING OPTICAL MICROSCOPY) 

Visualization and analysis of anoscopic thickness variations and transitions in freestanding films

Measurement of thickness down to 1 nm in freestanding films, made possible by coverting the pixel-wise intensity obtained using digital imaging into  thickness using interferometry equations.

Shape and shape evolution of nanoscopic ridges, mesas, hills and valleys: interplay of capillary and disjoining pressure.

Analogies and contrast to nanoscopic morphological features that appear as a result of dewetting of supported polymer films. Role of supramolecular structural force, line tension, and concentration-dependent changes in interfacial and bulk properties.

INTERFACIAL ADSORPTION & SURFACTANT SCIENCE

Measurement of dynamic surface tension and adsorption kinetics using Maximum Bubble Pressure Tensiometry or Pendant Drop Tensiometry.

Foamability, Defoaming, Firefighting Foam, Reactor Foam, Lather, Froth, Suds.

SURFACTANT SCIENCE, SELF-ASSEMBLY & COMPLEXATION

Micellization and Micelle Shape and Size, Polymer-Surfactant Complexes.

Influence of surfactant type and concentration on the shape and size of association complexes formed.

Bile Salts. Sodium Naphthenate. Soaps and Detergents.