Paper-based electrochemical sensing devices

Paper has been considered a versatile material for the fabrication of environmentally friendly electrochemical (bio)sensor devices, mainly due to its abundance, low cost, easy disposal (by incineration, for example) and biological compatibility. Paper-based electrochemical devices can be fabricated by inexpensive technology, and used in simple and portable diagnostic systems, providing high sensitivity and precision. This chapter presents an overview of electrochemical systems constructed from paper, summarizing the main advantages and disadvantages of paper types and fabrication techniques and the different exploited electrochemical detection techniques such as amperometry, voltammetry, electrochemical impedance spectroscopy and potentiometry.