Photoswitchable

Chemistry

Photoswitchable molecules allow writing by radiation or heat and erasing by visible light.

Ultraviolet rays disappear when you write the kanji “light” on treated paper and irradiate it with visible light. Next, marks are made on the treated paper with a soldering iron, and the marks disappear when exposed to visible light. Provided by: Osaka Metropolitan University In the age of cloud storage, few people back up their data to CD-RWs. Technology for…