Microfluidic paper-based analytical devices: from POCKET to paper-based ELISA

“4 years after the initial publication on microPADs, the simple idea of making microfluidic devices out of paper is being adopted by a growing number of researchers.” Microfluidic paper-based analytical devices (microPADs) began as a simple idea with an ambitious goal. The idea was to make microfluidic devices out of paper instead of plastic or glass. The goal was to develop low-cost and portable paper-based diagnostic devices to improve healthcare in developing countries. Over the past 6 years, many developments have been made in the emerging field of paper-based microfluidic devices. Reviewing the development of these devices in the Whitesides...