Some molecules respond to light in a matter of seconds. In the case of this dithienylethene compound, ultraviolet light triggers a ring-forming reaction, turning the colorless solution deep red.

Researchers have discovered nanocrystals that toggle between luminescent states swiftly, offering a promising advancement ...

2 shows the circuit diagram of the vehicle theft detector. The system is built around quad op-amp LM324 (IC1), quad 2-input ...