MINIATURISED gyroscopes more commonly found in missile guidance systems can make sensitive biosensors for fast cancer diagnosis.
Micro-gyroscopes comprise a chip with a vibrating disc the size of a sand grain mounted at its centre. The vibrations are highly sensitive to acceleration, so the chips can be used to detect motion in rockets, aircraft and anti-lock braking systems in cars.
But now Calum McNeil and his colleagues at the University of Newcastle in the UK have created a gyroscopic disc less than 0.1 millimetres across that can be used to “weigh” proteins, which allows it to identify particular proteins produced…
