Emerging Applications of Additive Manufacturing in Biosensors and Bioanalytical Devices

The progress of additive manufacturing (AM), known as 3D-printing, has initiated a revolution in the new generation of biosensors and bioanalytical devices in recent years. The advancement in the resolution of AM has enabled the microfabrication of the architectures of electrodes and sensing layers for high-performance sensing. Diversiform printable materials, including biocompatible materials, polymers, various gels and metals, have enormously broadened the horizon in sensors and analytical devices for both research and commercial purposes. The considerable shortening of time and cost in sensor prototyping and fabrication has been reported and various highly customizable biosensing platforms and devices are under development. Herein, the most recent studies on the applications of AM in biosensors and bioanalytical devices are summarized with the aim to provide a panorama of emerging 3D-printing strategies for sensor design and bioanalytical device fabrication.