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24 April 2020 CWA detection using functionalized surface acoustic wave sensors
Joo-Hyung Kim, Jinuk Kim, Sanjeeb Lama, Jihyun Kim
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Proceedings Volume 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV; 113780O (2020) https://doi.org/10.1117/12.2559839
Event: SPIE Smart Structures + Nondestructive Evaluation, 2020, Online Only
Abstract
Chemical warfare agents (CWAs) are extremely lethal spices of mass destruction even at the low dosages which gives crucial importance to early detection and prevention. As a simulant of nerve agent sarin, Dimethyl methylphosphonate (DMMP) can be used because it has non-toxic properties and mimics the structural composition of sarin. In this paper, we summarize the CAW detection by designing a surface acoustic wave (SAW) and fabrication of polyhedral oligomeric silsesquioxane (POSS), thiourea (TU) and other hybrid composite materials for sensing materials. The sensing hybrid materials were fabricated by hydrosilylation reaction process and hydrothermal and thermal reduction process respectively. The synthesized materials were spin-coated or drop coated on the SAW and quartz crystal microbalance sensor as a thin layer deposition on the surface. Based on our experiments, several sensing polymers and hybrid oxides will be suggested for potential candidates of CWA sensing layers on portable SAW device.
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Joo-Hyung Kim, Jinuk Kim, Sanjeeb Lama, and Jihyun Kim "CWA detection using functionalized surface acoustic wave sensors", Proc. SPIE 11378, Nano-, Bio-, Info-Tech Sensors, and 3D Systems IV, 113780O (24 April 2020); https://doi.org/10.1117/12.2559839
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KEYWORDS
Sensors
Chemical weapons
Acoustics
Composites
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