Highly sensitive, room temperature operated gold nanowire-based humidity sensor: adoptable for breath sensing.

A novel, highly sensitive gold nanowire (AuNW) resistive sensor is reported here for humidity sensing in the relative humidity range of 11% to 92% RH as well as for breath sensing. Both humidity and breath sensors are widely needed. Despite a lot of research on humidity and breath sensors, there is a need for simple, inexpensive, reliable, sensitive and selective sensors, which will operate at room temperature.

Nanostructured WO/graphene composites for sensing NO at room temperature.

WO has emerged as an outstanding nanomaterial composite for gas sensing applications. In this paper, we report the synthesis of WO using two different capping agents, namely, oxalic acid and citric acid, along with cetyltrimethyl ammonium bromide (CTAB). The effect of capping agent on the morphology of WO material was investigated and presented.