Chemists in South Korea have created a stable color-changing sensor that displays an easily quantifiable response to the pH of its surroundings. Published in Microsystems & Nanoengineering, Dong-Hwan ...
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 ...
Scientists developed a smartphone-compatible ethanol sensor using a metal-organic framework called Cu-MOF-74. The sensor visually detects ethanol concentrations across a wide range, with no ...
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