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Consumer Safety

Questioning quats’ safety

Quaternary ammonium compounds have been widely used as disinfectants for decades. But some scientists think we need more data on their safety in people

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Pharmaceuticals

Drug ingredients considered inert might have biological activity

Systematic investigation of excipients reveals that most are inactive, but a few may act upon biological targets


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Nanomaterials

Magnetically controlled droplets rock, rotate, and roll

Droplets with localized iron oxide nanoparticles move in response to a magnetic field and could have applications in optics


3-D printed material purifies biogas at low cost

A simple sorbent could make biogas production from dairy farms and other small-scale operations economically feasible