Colorimetric Gas Detection Tubes: Limits of Detection and Evaluation Using Active Chemical Warfare Agents

Review Chemistry, Multidisciplinary

Advances in Noble-Metal Nanoparticle-Based Fluorescence Detection of Organophosphorus Chemical Warfare Agents

Arshid Numan et al.

Summary: Efficient and simple detection of chemical warfare agents is crucial for minimizing their lethal consequences. Recent advances in fluorescent sensors and noble metal nanoparticles have shown great potential for developing smart sensors for chemical warfare agents.

ACS OMEGA (2022)

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Article Engineering, Environmental

Ultrasensitive surface-enhanced Raman spectroscopy detection of gaseous sulfur-mustard simulant based on thin oxide-coated gold nanocone arrays

Wangsheng Xu et al.

Summary: A chemically trapping strategy using an ultrathin metal-oxide sensing layer on a SERS substrate has been developed for detecting trace gaseous sulfur mustard, demonstrating detectability within 10 minutes with a lowest detectable concentration of 10 ppb or less. This study presents practical SERS chips and a new route for the trace detection of gaseous sulfur mustard.

JOURNAL OF HAZARDOUS MATERIALS (2021)

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Article Chemistry, Analytical

Colorimetric and fluorescent sensors for detection of nerve agents and organophosphorus pesticides

Qian Chen et al.

Summary: Organophosphorus compounds, including nerve agents and pesticides, are toxic organic phosphorus molecules with significant applications in agriculture and detection. Colorimetric and fluorescence sensors have been widely studied for rapid, sensitive, and convenient detection of organophosphorus analogs.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Article Chemistry, Multidisciplinary

Battling Chemical Weapons with Zirconium Hydroxide Nanoparticle Sorbent: Impact of Environmental Contaminants on Sarin Sequestration and Decomposition

Robert B. Balow et al.

Summary: The study focused on the impact of promising reactive sorbent zirconium hydroxide (ZH) on the decomposition of chemical warfare agents when exposed to common environmental contaminants. It was found that specific environmental pollutants can affect the rate and effectiveness of chemical agent decomposition. The results suggest that zirconium hydroxide is capable of effectively adsorbing and decomposing sarin molecules, demonstrating potential value for chemical decontamination applications.

LANGMUIR (2021)

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Review Materials Science, Multidisciplinary

Colorimetric Sensors for Toxic and Hazardous Gas Detection: A Review

Sung Hwan Cho et al.

Summary: With the rapid development of industries, the threat of toxic and hazardous substances to human health is increasing, leading to a rising demand for accurate sensors. Colorimetric sensors, which detect substances by measuring absorbance or fluorescence spectra shift, are one of the emerging strategies today. Practical applications of colorimetric sensors require detection of low concentrations of toxic and hazardous substances in gaseous media, along with considerations for low power consumption, selectivity, and sensitivity for Internet of Things (IoT) applications.

ELECTRONIC MATERIALS LETTERS (2021)

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Review Chemistry, Analytical