A recently developed environmental sensor may be lifesaving in a number of industries, including mining.
Researchers at Penn State University have developed an environmental sensor that is one step closer to simultaneously sniffing out multiple gases that could indicate disease or pollution. Such features may be lifesaving in a number of industries, including mining., the researchers explain that their highly customizable microscale gas sensing device combines laser writing and responsive sensor technologies.
With laser writing, the researchers dissolve metal salts in water, then focus the laser on the solution. The high temperature decomposes the solution, leaving behind metal oxide nanoparticles that can be sintered onto the sensor platform. “Such precise detection requires the patterning of different materials in close proximity, at the thinnest microscale. Few patterning techniques have the resolution to do this, but the approach detailed in this study does. We plan to use the techniques and materials described here to develop electronic nose prototypes.”
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