Design and development of a personal alarm monitor for use by first responders

Daniel J. Ehntholt; Alan S. Louie; Ingrid G. Marenchic; Ronald J. Forni

doi:10.1117/12.519664

8 March 2004 Design and development of a personal alarm monitor for use by first responders

Daniel J. Ehntholt, Alan S. Louie, Ingrid G. Marenchic, Ronald J. Forni

Proceedings Volume 5269, Chemical and Biological Point Sensors for Homeland Defense; (2004) https://doi.org/10.1117/12.519664
Event: Optical Technologies for Industrial, Environmental, and Biological Sensing, 2003, Providence, RI, United States

Abstract

This paper describes the design and development of a small, portable alarm device that can be used by first responders to an emergency event to warn of the presence of low levels of a toxic nerve gas. The device consists of a rigid reusable portion and a consumable packet that is sensitive to the presence of acetylcholinesterase inhibitors such as the nerve gases Sarin or Soman. The sensitivity level of the alarm is set to be at initial physiological response at the meiosis level, orders of magnitude below lethal concentrations. The AChE enzyme used is specific for nerve-type toxins. A color development reaction is used to demonstrate continued activity of the enzyme over its twelve-hour operational cycle.

Citation Download Citation

Daniel J. Ehntholt, Alan S. Louie, Ingrid G. Marenchic, and Ronald J. Forni "Design and development of a personal alarm monitor for use by first responders", Proc. SPIE 5269, Chemical and Biological Point Sensors for Homeland Defense, (8 March 2004); https://doi.org/10.1117/12.519664

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