Recycled-paper Platform for Active Microfluidic Chip with Inkjet-printing Carbon Nanotube Ink

Recycled-paper, as a platform substrate of active microfluidic chip, has been explored by incorporating the inkjet-printing carbon nanotube ink for electrode patterning. Overwhelming the presumed disadvantages such as high roughness and conductive containnation by the carbon black ink resided on the surface of recycled papers, our home-made carbon nanotube ink deposited by a ink-jet printer was coated uniformly with a high resolution. The patterns was used as a pattened array of electrode rail for active paper microfluidic devices for transporting a microvoulume of drops by the electrowetting force.