A low-cost, durable sensor made from adhesive paper and dye-coated silica microparticles can identify and quantify a range of toxic gases, including highly dangerous compounds such as chlorosarin.
Not all poisonous gases have a smell or a color. But a tiny grid of pastel- and candy-colored squares that effectively “sniffs” out hazardous chemicals in the air such as chlorosarin — a highly toxic ...
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