molecule

Under too much light, though, chlorophyll can enter a dangerous "triplet" state, producing reactive oxygen molecules that can damage cells.

The team measured fragments of myelin and other molecules left behind by immune attacks, along with the chemical signals that drive the immune system's response.

Normally, ozone is destroyed when it reacts with molecules formed as ultraviolet sunlight breaks apart water vapor.

Researchers at Vividion Therapeutics pinpointed a set of small molecules that permanently attach to the surface of PI3K near the spot where RAS would normally bind.

Four or more generic competitors for regular “small molecule” drugs can push prices down by nearly 80%.