Mixed-potential gas sensors with a proton conductor consisting of zinc metaphosphate glass and benzimidazole were fabricated for the detection of hydrogen produced by intestinal bacteria in dry and humid air. The gas sensor consisting of an alumina substrate with platinum and gold electrodes showed good response to different hydrogen concentrations from 250 parts per million (ppm) to 25,000 ppm...

We propose a novel approach to optimizing the sensitivity of a single coil sensor based on a theoretical model derived from electromagnetic theory. The thorax is subject to variations in conductivity due to respiratory and cardiac activities and our electromagnetic sensor is designed to measure these changes. We derive a theoretical model for changes in impedance of a current carrying coil caus...

Arrays of stretchable and transparent electronic sensors realize next-generation skin-conformable wearables soft robotic skins, which require a high-resolution patternable conductor. However, the difficulty simultaneously engineering desirable material properties (i.e., conductivity, stretchability, patternability) has limited development such materials. Herein, patternable, stretchable, conduc...

An oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and discharged from steam to generate hydrogen. The consisted of a that discharges controls the partial pressure by having electrodes in two places. Oxygen applying current controlling potential sensor. Hydrogen then generated water vapor. Furthermore, installed second stage, supplied pump, ...