Scientists in Scotland are developing a new microwave sterilisation technique that they say could dramatically speed up the cleaning of ambulances and hospitals. Electromagnetic waves, antennas, sensor beacons and a liquid layer could be used to rapidly heat up and sterilise surfaces, researchers at Edinburgh, Heriot-Watt University and Strathclyde universities say. Microwave engineers, infectious disease specialists and polymer scientists are involved in the project. Currently, it can take arou