Self-propelled drop movement: Chemical influences on the use of kinetic or equilibrium approaches in reactive wetting

Solid-liquid interactions play an important role in the design and operation of numerous processes. Current interests in microfluidics, micro-droplet handling, micro-array generation, and integrated microsystems share common requirements of handling and manipulating fluidic behavior in cases dominated by surface effects [1-9]. The behavior of these systems is influenced by a variety of microscopic

factors and cannot be easily described. Capillary forces and other surface effects are sufficient to alter fluidic behavior due to the proportionately large areas of solidliquid contact on these affected small volumes.