ABSTRACT

The principles behind liquid marble formation are thoroughly explained. This is followed by a detailed description of liquid marble preparation, where a list of powdered particles utilized in liquid marble preparation is given and the preformed drop template and the mechanical dispersion methods of marble preparation are discussed. A detailed description of the statics and dynamic properties of liquid marbles, covering specifically their creeping and quick motions, is given. The chapter then explains the origin of the effective surface tension of liquid marbles, which is the surface tension of a liquid drop upon enwrapping with powdered particles. Measurement of the effective surface tension of liquid marbles using the puddle height, analysis of marble shape, vibration of liquid marbles, Wilhelmy plate, capillary rise and pendant marble methods are thoroughly and succinctly described. In addition, electrowetting and magnetowetting of liquid marbles, which represent the wetting of liquid marbles upon exposure to an electric field and a magnetic field, respectively, are presented. Lastly, the evaporation of liquid marbles and their behavior upon freezing are discussed.