Professor Emma MacPherson was on Sky News International showcasing a new skin scanner which has the potential to transform the way skin cancer is detected and treated. Using pulses of light from the terahertz part of the light spectrum it will detect how far cancer that is not visible has spread under the skin. This will mean that surgical removal can be better planned, more effective and faster. This in turn will reduce patient waiting times and improve patient outcomes as well as reduce costs to the NHS.

Watch the Sky News video.