Photochromism is defined as a reversible transformation of a chemical species between two
isomers having different absorption spectra induced in one or both directions by …

Ultrafast photochemical reactions in liquids occur on similar or shorter time scales compared
to the equilibration of the optically populated excited state. This equilibration involves the …

Photoswitchable fluorophores─ proteins and synthetic dyes─ whose emission is reversibly
switched on and off upon illumination, are powerful probes for bioimaging, protein tracking …

Photomechanical crystals composed of three-dimensionally ordered and densely packed
photochromes hold promise for high-performance photochemical actuators. However, bulk …

With the recent advances in ultrabright electron and x-ray sources, it is now possible to
extend crystallography to the femtosecond time domain to literally light up atomic motions …

Decoding cellular processes requires visualization of the spatial distribution and dynamic
interactions of biomolecules. It is therefore not surprising that innovations in imaging …

One of the grand challenges in chemistry has been to directly observe atomic motions
during chemical processes. The depiction of the nuclear configurations in space-time to …

Low photostability in aqueous solutions is the main drawback of synthetic photochromic
dyes, which limits their switching performance and utility in biology, medicine, and life …

Diarylethene‐functionalized liquid‐crystalline elastomers (DAE‐LCEs) containing thiol‐
anhydride bonds were prepared and shown to undergo reversible, reprogrammable …

A diarylethene photoswitch was covalently connected to two small triplet sensitizer moieties
in a conjugated and nonconjugated fashion and the photochromic performance of the …