Abstract
We propose a novel microfluidic system for continues particles separation by using capillary force and evaporating force. Typically, the microfluidic system needs external force or extra pumps to drive fluids, which were caused system complexity. It is a kind of the simple method to utilize evaporation force and capillary force on driving liquid. The particles can be continuously separated according to their diameter. The microfluidic system was fabricated under room temperature processes, which was also performed particle separation by using micro beads. Because it does not need other accessory systems like micropump or power supplying device, so that it can reduce cost. This method can be used widely for continuous and precise separation on various kinds of particles, and can be functioned as an important part of disposable biochips in the future.