In a recent development in the field of nanotechnology, University of Portsmouth researchers have created an electronic switch based on DNA which is being regarded as world’s first bio-nanotechnology breakthrough that offers the foundation for interface between living organisms and the world of computer. Called as nanoactuator or molecular dynamo, one cannot see this device as it is one thousandth of the human hair strand therefore it is invisible to the human eye. Dr Keith Firman, British Molecular Biotechnology expert worked with European researchers for creating the DNA switch. Realizing the importance of this development, the team has been given a €2 million European Commission grant for developing the path breaking technology. As of now it can be used for detection of toxins and also applied in bio defence as a biological sensor for detecting airborne pathogens.