The Persian Gulf War demonstrated that the ability of US forces to recognize exposures, especially at low levels, depended on chemical detection and clinical recognition of signs and symptoms of the particular exposure. Romano, in Encyclopedia of Toxicology (Third Edition), 2014 The Persian Gulf War and Deployment Toxicology These sensors can detect and identify trace amounts of chemical warfare agents, including nerve and blister agents, and can be configured to detect phosgene and/or hydrogen cyanide ( USEPA, 2005). Mass changes in a subset of elements because of interaction with a particular volatile chemical causes surface acoustic waves (~10 Å in amplitude, 1–100 μm in wavelength), which are detected by piezoelectric materials.Įach sensor is coated with different polymers that provide a multipattern sensor response (fingerprint) to indicate the presence of contaminants in vapor samples. For chemical detection, SAW sensors can be configured in a microarray, with each element uniquely coated. Surface acoustic wave technology (SAW) technology has been used for decades in transceiver technology and cell phone technology. ĭan Kroll, in Handbook of Water Purity and Quality, 2009 Surface Acoustic Wave Technology These sensors can detect and identify trace amounts of chemical warfare agents, including nerve and blister agents, and can be configured to detect phosgene and/or hydrogen cyanide. The subset of elements that respond to a specific VOC can be recognized by software included in the sensor, allowing for a diverse list of detectable analytes.Įach sensor is coated with different polymers that provide a multipattern sensor response (fingerprint) to indicate the presence of contaminants in vapor samples. Mass changes in a subset of elements, due to interaction with a particular volatile chemical, cause SAWs (~10 Å in amplitude, 1–100 µm in wavelength), which are detected by piezoelectric materials. Surface acoustic wave (SAW) technology has been used for decades in transceiver technology and cell phone technology. Dan Kroll, in Handbook of Water Purity and Quality (Second Edition), 2021 7.14.9 Surface acoustic wave technology
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