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Toxicology

E-cigarettes impair blood vessel function as much as conventional cigarettes do in rats

Study also finds that Juul e-cigarettes pack more nicotine per puff than cigarettes


E-cigarettes impair blood vessel function as much as conventional cigarettes do in rats

Study also finds that Juul e-cigarettes pack more nicotine per puff than cigarettes

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Catalysis

Light-activated catalyst makes syngas greener

System highly stable, has high selectivity


Photocatalyst flips common sugars to rare ones

Method can break and re-form a specific C–H bond, changing the molecule’s stereochemistry, without need for protecting groups

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Polymers

Mechanoacid polymer signals a smash hit

Stress-induced acid formation shows location and timing of damage


Lithium-based semiconductor detects thermal neutrons

Material could lead to hand-held detectors for nuclear safety and security