First microlasers capable of detecting individual molecules and ions could one day aid diagnosis

An innovative gel that forms a layer over teeth and then recruits calcium and phosphate ions from saliva to build new enamel has the potential to change dental treatment.

Will Liquid Circuits Enable Brain-Imitating Computers? New microchips shuffle around ions like synapses in the human brain.

Huge First: Physicists 'Entangle' Individual Molecules With Staggering Precision