Microfluidics deals with the behavior, precise control and manipulation of microliter and nanoliter volumes of fluids. It is a multidisciplinary field comprising physics, chemistry, engineering and biotechnology, with practical applications to the design of systems in which such small volumes of fluids will be used. Microfluidics has emerged only in the 1990s and the most familiar application of microfluidics technology is ink-jet printing. In the life sciences, the most widely used microfluidics-based device today is known as the “lab-on-a-chip”. Lab-on-a-chip technology allows various qualitative and quantitative biochemical analyses to be conducted quickly and efficiently, with minimum handling by the user.