Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Nerve-Agent Selective Chemiresistors Fabricated by Oxime Decorated Polypyrrole Layer on Cellulose Paper

셀룰로오스 종이 상에 Oxime 도입된 polypyrrole 층을 제조한 신경작용제 선택적 화학저항 센서

  • Changhoon Jeon (Medical Convergence Textile Center, Gyeongbuk Technopark) ;
  • Taihwan Ha (Core Facility Management Center, Korea Research Institute of Bioscience and Biotechnology(KRIBB))
  • 전창훈 (재단법인 경북테크노파크, 첨단메디컬융합섬유센터) ;
  • 하태환 (한국생명공학연구원, 공동장비분석센터)
  • Received : 2024.04.15
  • Accepted : 2024.07.08
  • Published : 2024.08.05
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Abstract

In continuous research of detecting highly toxic chemical warfare agents to ensure preparedness for the future battlefield, flexible and wearable sensor platforms with high sensitivity are still demanding. Herein we demonstrate a facile fabrication of polypyrrole-based chemiresistors on cellulose paper for the detection of nerve gas simulants. In order to optimize electrical properties of sensor platform, conducting polymer made of polypyrrole were first synthesized on flexible cellulose paper and interdigitated electrodes were formed thereon. Following confirmation of polypyrrole and/or oxime moiety through FT-IR analyses, electrical characteristics were measured in the various ratio of monomers between simple pyrrole and oxime-modified one. Typically for the optimized chemiresistor(2:8 molar ratio of simple pyrrole and oxime-modified one), eleven species of chemical warfare agents were examined and enhanced conductivity(104~105 order) was observed for three simulants(diethyl cyanophosphonate, diisopropyl fluorophosphonate and diethyl chlorophosphonate), which was mainly attributed to intermolecular hydrogen bonding, while no significant responses was recorded against sixteen common volatile organic chemicals.

Keywords

Acknowledgement

본 연구는 국방과학연구소의 차세대 생물방어 특화연구실(ADD-911255201) 사업의 지원으로 수행되었음.

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