Electrochemical reduction of carbon dioxide holds promise for converting CO₂ into valuable products but is hampered by stability issues and wasted carbon. A proton-exchange membrane that uses lead as a catalyst demonstrates the feasibility of durable and efficient CO₂ reduction.

Snippets from Nature’s past.

Tailoring symmetries in an innovative class of optoelectronic metasurface produces a rich landscape of tunable current patterns down to the nanoscale. These materials provide opportunities for ultrafast light-controlled charge flows that could have applications in terahertz science, information processing and other realms.

It emerges from a study of human cells that smoking can influence certain immune responses to the same extent as can age or genetics. Smoking can alter the immune system in ways that persist long after quitting the habit.