Walking the wire: Real-time imaging helps reveal active sites of photocatalysts

Walking the wire: Real-time imaging helps reveal active sites of photocatalysts

Nanoscale photocatalysts are small, man-made particles that harvest energy from sunlight to produce liquid fuels and other useful chemicals. A new imaging solution developed at Washington University in St. Louis reveals the significance of a particular structural feature — clusters of oxygen vacancies — in achieving high photocatalytic activity.
Researchers engineer bacteria that create fertilizer out of thin air

Researchers engineer bacteria that create fertilizer out of thin air

A team at Washington University in St. Louis has created a bacteria that uses photosynthesis to create oxygen during the day, and at night, uses nitrogen to create chlorophyll for photosynthesis. This development could lead to plants that do the same, eliminating the use of some — or possibly all — man-made fertilizer, which has a high environmental cost.