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Biochemistry

A surprising molecular mechanism for processing bitter tastes

Bitter taste receptor’s role goes beyond the tongue


Redesigned drug could boost lung healing

Researchers tweaked a peptidase inhibitor to promote lung stem cell regeneration

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Pollution

World policymakers trudge tough road as they reconvene in Ottawa for the fourth UN plastics meeting

Negotiators have had a particularly hard time with the plastics treaty. But how do UN treaties work, and how can this one move forward?


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Separations

Miniature polymeric tubes separate enantiomers

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


Miniature polymeric tubes separate enantiomers

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