Printable Chemical Nanosensor

NASA Goddard Space Flight Center has developed a printable nanosensor and leads using 3D printing techniques on a silicon daughter board that can be connected to a self-contained pre-amp printed circuit board (PCB). The sensor contains a graphene sensor array (a printed CNT or MoS2 could also work) and a PCB with pre-amplifier circuit connected to the daughter board with mechanical clips and wire-bonded together. The sensor dimensions are typically from microns to hundreds of microns. This innovation increases the sensitivity of gas sensors, enabling detection of ppb level concentration (and possibly single molecules).