Identification of organophosphate nerve agents by the DMS detector

Fabrication of AChE/SnO2-cMWCNTs/Cu Nanocomposite-Based Sensor Electrode for Detection of Methyl Parathion in Water

“…This curve was then used to determine linearity of electrode and minimum limit of detection. The sensor response was found to be linear from 1 μ M to 160 μ M. The linearity of newly fabricated sensor is better than earlier reported methods using variety of other nanomaterials for pesticide detection carbon paste electrode (4.6 to 46 μ M, methyl parathion and paraoxon) [ 34 ], silver nanocubes synthesis for determining paraoxon [ 35 ], pore glass beads (up to 140 μ M for methyl parathion and up to 120 μ M for paraoxon) [ 36 ], and gold electrode (1–10 μ M for methyl parathion and paraoxon) [ 37 ]. The minimum concentration of pesticide the sensor can detect is 0.1 μ M. This minimum detection limit is better than earlier reported methods using MWCNT/GCE (0.314 μ M of paraoxon) [ 38 ] and modified GCE (150 nM of paraoxon ethyl) [ 20 ].…”

Synthesis and Application of Polymer SXFA in the Detection of Organophosphine Agents with a SAW Sensor

“…Various gas sensing techniques have been developed for GB detection, for instance, field-effect transistors [ 4 ], fluorescence [ 5 ], flame photometry [ 6 ], ion mobility spectrometry [ 7 ], gas chromatography–mass spectrometry [ 8 ], and surface acoustic wave (SAW) [ 9 ], and each technique has special advantages and plays unique roles in GB detection. The SAW technique has been systematically and deeply studied in the detection of chemical warfare agents (CWAs), mainly due to its non-destructive nature, compact structure, ability to detect nerve agents and blister agents, and applicability to point or area detection [ 10 , 11 , 12 , 13 , 14 , 15 ].…”

Construction of logic gate computation for the assay of the nerve agent sarin based on an AChE-based dual-channel sensing system

“…Nerve agents are a class of highly toxic organophosphorus compounds, which rapidly inactivate acetylcholinesterase (AChE) in the human nervous system and pose a serious risk to public health. 1 So far, detection methodologies for nerve agents include techniques such as chromatography-mass spectrometry, 2 electrospray mass spectrometry, 3 Raman spectroscopy, 4 ion mobility spectrometry, 5 nuclear magnetic resonance 6 and surface acoustic wave method. 7 However, these traditional instrumental analytical methods require expensive and bulky equipment, professional operators, and cumbersome experimental steps.…”