Efficient detection of chemical warfare agents (CWAs) has become indispensable because of the constantly increasing widespread use of CWAs to inflict mass deaths. The commonly used mass spectrometry for CWA detection has a few drawbacks, such as the complexity of equipment and out-situ analysis; thus, a simple and intuitive detection method is required to overcome these challenges. Accordingly, in this study, we fabricate Rhodamine 6G (R6G)/Ag nanowires (NWs) for CWA detection based on the sensitive fluorescence changes of R6G caused by the adsorption of different CWA derivatives. In addition, the localized surface plasmon of Ag NWs is applied to enhance the sensitivity of detection due to emission enhancement. The experimental results indicate that the simple CWA detection method proposed in this study can efficiently detect phosphate-type CWAs.
Chemical warfare agents Rhodamine 6G Silver nanowires Localized surface plasmon
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This work was supported by the Agency for Defense Development through Chemical and Biological Research Center and the National Research Foundation of Korea (NRF) grant funded by the Korea Governments Ministry of Science and ICT (MSIT) (NRF-2019R1A2 B5B02070657). J. B. G., P. D. Y. and K. Y. contributed to this work equally.
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