Soft materials filled with microbubbles flex when exposed to ultrasound — forming the basis of wireless devices that can be made to pass through organs such as the intestine.

Porous materials have long been a focus of research for gas separations. Now, flexible, highly fluorinated coordination polymers lacking permanently built-in cavities have been shown to adsorb CO 2 ...

The tech analyst Fred Hickey developed a cult following during the excesses of the dotcom era. The current craze has similar features. Yet while internet hype was fuelled by revolutionary technology, ...