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Science News for July 15, 2005


UCLA chemists create nano valve

Researchers at UCLA have successfully created a nano valve that can trap and release molecules on demand, controlling them at the nano scale. The device uses switchable rotaxane molecules attached to a tiny piece of glass, allowing for precise control over molecule movement.

SourceUniversity of California - Los Angeles·JournalProceedings of the National Academy of Sciences·DateJul 15, 2005

American Thoracic Society Journal news tips for July 2005 (second issue)

A study in the American Thoracic Society's journal found that ethambutol can cause ocular toxicity, particularly in patients with renal insufficiency. The researchers recommended monthly visual acuity and color discrimination testing for patients taking high doses of the drug or receiving it for extended periods.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateJul 15, 2005