Engineering publications brought to you by Mark Allen

Medical & healthcare

Bistable graphene transistor could surpass silicon's speed

US engineers "print" functioning artificial ear

Swedish research comes closer to breathalyser for illegal drugs

Imaging gives clues to how nanoparticles attack cancer

MRI and microscopy combine to study cancer cells' workings

Gripper microbots help perform live biopsy

Haptic simulator helps with epidural training

Project aims to create artificial sphincter implants

Surgical X-ray tool could help track steerable needles

Device delivers light signals deep into the brain

DVD drive converted into low cost analytical microscope

Device aims to accelerate stroke rehabilitation