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Chemical Sensing

A new artificial-nose-like sensor can sniff out organic compounds

Human olfactory receptors bound to an electronic device can identify airborne odorants


US CDC begins tracking influenza in wastewater to assess H5N1 spread

Amid multistate outbreaks of bird flu in dairy cows, public health officials are monitoring wastewater for early signs of the virus

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Pollution

Tiny robots with polymer ‘hands’ capture bacteria and microplastics in water

Microbots that self-assemble into planar swarms can catch free-swimming microbes


Dow presents rosy view of the future

At an investor event, the company promotes sustainable investments as an earnings driver


Miniature polymeric tubes separate enantiomers

Devices could offer an alternative to chromatography and speed screening of chiral compounds