A portable chromogenic and fluorogenic membrane sensor for ultrasensitive, specific and instantaneous visualizing of lethal phosgene

Abstract

Phosgene is an indispensable industrial gaseous materials with high toxicity, and has ever been used as a chemical warfare agent (CWA), which poses a great threat to public security in...

Ultrafast Sulfur Mustard Simulant Gas Fluorescent Chemosensors Based on Triazole AIEE Material with High Selectivity and Sensitivity at Room Temperature

“…For onspot monitoring of SM species leakage during production and storage, we prepared handy, portable filter paper test strips, which integrates the advantages of low cost, easy-to-store, lightweight, and user-friendly as possible field-deployable sensors. 63 To achieve this aim, we designed an experiment to simulate the dangerous 2-CEES gas leakage scenarios to specifically test the real-time capability of this NDTAZ fluorescent chemosensor. In this attempt, first, NDTAZ paper-based sensor was fabricated by infiltrating filter paper strips into DCM solution with a 0.2 mg/mL concentration of NDTAZ for 30 s, and then, the solvent was evaporated with a blow of nitrogen.…”

“…For on-spot monitoring of SM species leakage during production and storage, we prepared handy, portable filter paper test strips, which integrates the advantages of low cost, easy-to-store, lightweight, and user-friendly as possible field-deployable sensors . To achieve this aim, we designed an experiment to simulate the dangerous 2-CEES gas leakage scenarios to specifically test the real-time capability of this NDTAZ fluorescent chemosensor.…”

A molecular recognition platform for the simultaneous sensing of diverse chemical weapons

“…[12][13][14][15][16] Recently, numerous uorescent sensors have been developed that separately detect phosgene or nerve agents using various reaction sites. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] However, their detection limits are unsatisfactory, or the response rate is slow because the reactivity of recognition units such as pyridine, aromatic amine, and hydroxyl groups is low. Moreover, these sensors ignore various toxic acyl chlorides, such as diphosgene and acetyl chloride, which still pose a threat to public security.…”

Novel Naphthalimide‐Based Self‐Assembly Systems with Different Terminal Groups for Sensitive Detection of Thionyl Chloride and Oxalyl Chloride in Two Modes

“…But the boiling points of acyl chlorides are very low, such as (COCl) 2 with 63 °C, acetyl chloride with 51 °C and phosgene with 8.2 °C. The low boiling point of these acyl chlorides will bring their volatility and harm to health and environment [7–9] . These acyl chlorides are irritating and can cause severe burning of skin, mucous membranes and respiratory system.…”

“…The low boiling point of these acyl chlorides will bring their volatility and harm to health and environment. [7][8][9] These acyl chlorides are irritating and can cause severe burning of skin, mucous membranes and respiratory system. Even if a small amount of inhalation or low concentration, also will cause loss of appetite, cough, dyspnea, easy fatigue, diarrhea, vomiting, headache, asthma, vision loss and so on.…”