Molecular-like photochemistry from semiconductor nanocrystals

Researchers from North Carolina State University have demonstrated the transfer of triplet exciton energy from semiconductor nanocrystals to surface-bound molecular acceptors, extending the lifetime of the originally prepared ...

Red fluorescence in two steps

Scientists have identified the mechanism that allows fluorescent proteins to switch colour in two phases. They are thereby laying the groundwork for new applications in microscopy and functional analyses in biological research.

Triplet threat from the sun

The most obvious effects of too much sun exposure are cosmetic, like wrinkled and rough skin. Some damage, however, goes deeper—ultraviolet light can damage DNA and cause proteins in the body to break down into smaller, ...