ABSTRACT
I. INTRODUCTION There are several types of surfaces or interfaces that are of great practical importance and attracting fundamental interest. These general classifications include liquid-gas, liquid-liquid, liquid-solid, solid-gas, and solid-solid in terfaces. Many examples of interfaces of natural and technological importance are available, for instance, oil-water interfaces in emulsions, air-water inter faces in foams, solid-gas interfaces in gas chromatography, and solid-water interfaces in cleaning systems [1].
