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CS gas ( o-chlorobenzylidenemalononitrile) is one of the most commonly used riot agents. It can create excessive tearing, conjunctivitis, uncontrolled blinking (blepharospasm) and a sensation of burning and pain at initial exposure. Pulmonary edema (ARDS) and/or diffuse airway lesions on human would be lethal after CS inhalation. We report a case with acute laryngeal and bronchial obstruction due to vocal cord edema and extensive crusting at glottic level, trachea and bronchi. The CS gas was sprayed in a 6 × 6 m2 closed room, and she was exposed to increased concentration of the gas for 10 s. Surprisingly, her initial symptoms were raised 21 days after CS spray exposure. [ABSTRACT FROM AUTHOR]

A conducting composite of polythiophene (PTh) with polyacrylamide (PAA) as the insulating matrix was prepared via electrochemical methods. The change in the conductivity of composites was analyzed as a function of the percent composition of the insulating component. The characterization of the composite was done by FTIR, SEM, and TGA studies. Conductivity and solubility studies together with spectroscopic methods reveal that a chemical interaction between the polymers exists. [ABSTRACT FROM AUTHOR]