Health

New stem cell technique restores sight to blind mice

Brain implant lets quadriplegic woman feed herself

Engineered algae produce complex anti-cancer drug

3D printer produces artificial cartilage

Eye implant helps blind patients 'read' Braille

Nanoparticles may offer cure for MS

Artificial lens mimics the human eye

Pacemakers powered by patient's heartbeat alone

Hormone increases life expectancy by a third

Lab-on-a-chip paves way for Star Trek tricorder